remove old bc-1.0.3 stuff

modify Makefile, to get bc-1.0.4 from src/contrib/bc
adjust config.h
PR:		closes 4183

20 files changed, 22 insertions, 7089 deletions

diff --git a/gnu/usr.bin/bc/COPYING b/gnu/usr.bin/bc/COPYING
deleted file mode 100644
index 86cf81acb8c6..000000000000
--- a/gnu/usr.bin/bc/COPYING
+++ /dev/null
@@ -1,341 +0,0 @@
-
-		    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
-                          675 Mass Ave, Cambridge, MA 02139, USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-			    Preamble
-
-  The licenses for most software are designed to take away your
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-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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-
-	Appendix: How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
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-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) 19yy  <name of author>
-
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-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
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-    GNU General Public License for more details.
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-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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-Also add information on how to contact you by electronic and paper mail.
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-If the program is interactive, make it output a short notice like this
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-    Gnomovision version 69, Copyright (C) 19yy name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
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-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
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-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
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-
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  <signature of Ty Coon>, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Library General
-Public License instead of this License.
-
diff --git a/gnu/usr.bin/bc/Makefile b/gnu/usr.bin/bc/Makefile
index e4a2738a0e3c..7c0557ca2674 100644
--- a/gnu/usr.bin/bc/Makefile
+++ b/gnu/usr.bin/bc/Makefile
@@ -1,10 +1,25 @@
-PROG= bc
+# $Id$
 
-BCSRCS= execute.c global.c load.c main.c number.c storage.c util.c
-GENSRCS= bc.c scan.c
-SRCS= ${GENSRCS} ${BCSRCS}
+.include "${.CURDIR}/../Makefile.inc"
 
-CFLAGS+= -D_POSIX_SOURCE -I.
-CLEANFILES+= ${GENSRCS} y.tab.h
+.PATH:	${.CURDIR}/../../../contrib/bc/bc \
+	${.CURDIR}/../../../contrib/bc/lib \
+	${.CURDIR}/../../../contrib/bc/doc
+
+PROG=		bc
+BCSRCS=		execute.c global.c load.c main.c storage.c util.c \
+		number.c getopt.c getopt1.c
+GENSRCS=	bc.c scan.c
+SRCS=		${GENSRCS} ${BCSRCS}
+MAN1=		bc.1
+
+YACC=		bison -y
+
+CFLAGS+=	-DHAVE_VPRINTF=1  -DSTDC_HEADERS=1 -DHAVE_ISGRAPH=1 \
+		-DHAVE_LIMITS_H=1 -DHAVE_STDARG_H=1 -DHAVE_STDDEF_H=1 \
+		-DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_UNISTD_H=1 \
+		-I${.CURDIR}/../../../contrib/bc/h -I.
+
+CLEANFILES+=	${GENSRCS} y.tab.h
 
 .include <bsd.prog.mk>
diff --git a/gnu/usr.bin/bc/bc.1 b/gnu/usr.bin/bc/bc.1
deleted file mode 100644
index 0244de0e2333..000000000000
--- a/gnu/usr.bin/bc/bc.1
+++ /dev/null
@@ -1,732 +0,0 @@
-.\"
-.\" bc.1 - the *roff document processor source for the bc manual
-.\"
-.\" This file is part of bc written initially for MINIX.
-.\" Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-.\"
-.\" This program is free software; you can redistribute it and/or modify
-.\" it under the terms of the GNU General Public License as published by
-.\" the Free Software Foundation; either version 2 of the License , or
-.\" (at your option) any later version.
-.\"
-.\" This program is distributed in the hope that it will be useful,
-.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
-.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-.\" GNU General Public License for more details.
-.\"
-.\" You should have received a copy of the GNU General Public License
-.\" along with this program; see the file COPYING.  If not, write to
-.\" the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-.\"
-.\" You may contact the author by:
-.\" e-mail: phil@cs.wwu.edu
-.\" us-mail: Philip A. Nelson
-.\" Computer Science Department, 9062
-.\" Western Washington University
-.\" Bellingham, WA 98226-9062
-.\"
-.\" $Id$
-.\"
-.TH bc 1 .\" "Command Manual" v1.03 "Nov 2, 1994"
-.SH NAME
-bc - An arbitrary precision calculator language
-.SH SYNTAX
-\fBbc\fR [ \fB-lws\fR ] [ \fI file ...\fR ]
-.SH VERSION
-This man page documents GNU bc version 1.03.
-.SH DESCRIPTION
-\fBbc\fR is a language that supports arbitrary precision numbers
-with interactive execution of statements.  There are some similarities
-in the syntax to the C programming language. 
-A standard math library is available by command line option.
-If requested, the math library is defined before processing any files.
-\fBbc\fR starts by processing code from all the files listed
-on the command line in the order listed.  After all files have been
-processed, \fBbc\fR reads from the standard input.  All code is
-executed as it is read.  (If a file contains a command to halt the
-processor, \fBbc\fR will never read from the standard input.)
-.PP
-This version of \fBbc\fR contains several extensions beyond
-traditional \fBbc\fR implementations and the POSIX draft standard.
-Command line options can cause these extensions to print a warning 
-or to be rejected.  This 
-document describes the language accepted by this processor.
-Extensions will be identified as such.
-.SS OPTIONS
-.IP -l
-Define the standard math library.
-.IP -w
-Give warnings for extensions to POSIX \fBbc\fR.
-.IP -s
-Process exactly the POSIX \fBbc\fR language.
-.SS NUMBERS
-The most basic element in \fBbc\fR is the number.  Numbers are
-arbitrary precision numbers.  This precision is both in the integer
-part and the fractional part.  All numbers are represented internally
-in decimal and all computation is done in decimal.  (This version
-truncates results from divide and multiply operations.)  There are two
-attributes of numbers, the length and the scale.  The length is the
-total number of significant decimal digits in a number and the scale
-is the total number of decimal digits after the decimal point.  For
-example:
-.nf
-.RS
- .000001 has a length of 6 and scale of 6.
- 1935.000 has a length of 7 and a scale of 3.
-.RE
-.fi
-.SS VARIABLES
-Numbers are stored in two types of variables, simple variables and
-arrays.  Both simple variables and array variables are named.  Names
-begin with a letter followed by any number of letters, digits and
-underscores.  All letters must be lower case.  (Full alpha-numeric
-names are an extension. In POSIX \fBbc\fR all names are a single
-lower case letter.)  The type of variable is clear by the context
-because all array variable names will be followed by brackets ([]).
-.PP
-There are four special variables, \fBscale, ibase, obase,\fR and
-\fBlast\fR.  \fBscale\fR defines how some operations use digits after the
-decimal point.  The default value of \fBscale\fR is 0. \fBibase\fR
-and \fBobase\fR define the conversion base for input and output
-numbers.  The default for both input and output is base 10.
-\fBlast\fR (an extension) is a variable that has the value of the last
-printed number.  These will be discussed in further detail where
-appropriate.  All of these variables may have values assigned to them
-as well as used in expressions.
-.SS COMMENTS
-Comments in \fBbc\fR start with the characters \fB/*\fR and end with
-the characters \fB*/\fR.  Comments may start anywhere and appear as a
-single space in the input.  (This causes comments to delimit other
-input items.  For example, a comment can not be found in the middle of
-a variable name.)  Comments include any newlines (end of line) between
-the start and the end of the comment.
-.SS EXPRESSIONS
-The numbers are manipulated by expressions and statements.  Since
-the language was designed to be interactive, statements and expressions
-are executed as soon as possible.  There is no "main" program.  Instead,
-code is executed as it is encountered.  (Functions, discussed in
-detail later, are defined when encountered.)
-.PP
-A simple expression is just a constant. \fBbc\fR converts constants
-into internal decimal numbers using the current input base, specified
-by the variable \fBibase\fR. (There is an exception in functions.)
-The legal values of \fBibase\fR are 2 through 16 (F).  Assigning a
-value outside this range to \fBibase\fR will result in a value of 2
-or 16.  Input numbers may contain the characters 0-9 and A-F. (Note:
-They must be capitals.  Lower case letters are variable names.)
-Single digit numbers always have the value of the digit regardless of
-the value of \fBibase\fR. (i.e. A = 10.)  For multi-digit numbers,
-\fBbc\fR changes all input digits greater or equal to ibase to the
-value of \fBibase\fR-1.  This makes the number \fBFFF\fR always be
-the largest 3 digit number of the input base.
-.PP
-Full expressions are similar to many other high level languages.
-Since there is only one kind of number, there are no rules for mixing
-types.  Instead, there are rules on the scale of expressions.  Every
-expression has a scale.  This is derived from the scale of original
-numbers, the operation performed and in many cases, the value of the
-variable \fBscale\fR. Legal values of the variable \fBscale\fR are
-0 to the maximum number representable by a C integer.
-.PP
-In the following descriptions of legal expressions, "expr" refers to a
-complete expression and "var" refers to a simple or an array variable.
-A simple variable is just a
-.RS
-\fIname\fR
-.RE
-and an array variable is specified as
-.RS
-\fIname\fR[\fIexpr\fR]
-.RE
-Unless specifically
-mentioned the scale of the result is the maximum scale of the
-expressions involved.
-.IP "- expr"
-The result is the negation of the expression.
-.IP "++ var"
-The variable is incremented by one and the new value is the result of
-the expression.
-.IP "-- var"
-The variable
-is decremented by one and the new value is the result of the
-expression.
-.IP "var ++"
- The result of the expression is the value of
-the variable and then the variable is incremented by one.
-.IP "var --"
-The result of the expression is the value of the variable and then
-the variable is decremented by one.
-.IP "expr + expr"
-The result of the expression is the sum of the two expressions.
-.IP "expr - expr"
-The result of the expression is the difference of the two expressions.
-.IP "expr * expr"
-The result of the expression is the product of the two expressions.
-.IP "expr / expr"
-The result of the expression is the quotient of the two expressions.
-The scale of the result is the value of the variable \fBscale\fR.
-.IP "expr % expr"
-The result of the expression is the "remainder" and it is computed in the
-following way.  To compute a%b, first a/b is computed to \fBscale\fR
-digits.  That result is used to compute a-(a/b)*b to the scale of the
-maximum of \fBscale\fR+scale(b) and scale(a).  If \fBscale\fR is set
-to zero and both expressions are integers this expression is the
-integer remainder function.
-.IP "expr ^ expr"
-The result of the expression is the value of the first raised to the
-second. The second expression must be an integer.  (If the second
-expression is not an integer, a warning is generated and the
-expression is truncated to get an integer value.)  The scale of the
-result is \fBscale\fR if the exponent is negative.  If the exponent
-is positive the scale of the result is the minimum of the scale of the
-first expression times the value of the exponent and the maximum of
-\fBscale\fR and the scale of the first expression.  (e.g. scale(a^b)
-= min(scale(a)*b, max( \fBscale,\fR scale(a))).)  It should be noted
-that expr^0 will always return the value of 1.
-.IP "( expr )"
-This alters the standard precedence to force the evaluation of the
-expression.
-.IP "var = expr"
-The variable is assigned the value of the expression.
-.IP "var <op>= expr"
-This is equivalent to "var = var <op> expr" with the exception that
-the "var" part is evaluated only once.  This can make a difference if
-"var" is an array.
-.PP
- Relational expressions are a special kind of expression
-that always evaluate to 0 or 1, 0 if the relation is false and 1 if
-the relation is true.  These may appear in any legal expression.
-(POSIX bc requires that relational expressions are used only in if,
-while, and for statements and that only one relational test may be
-done in them.)  The relational operators are
-.IP "expr1 < expr2"
-The result is 1 if expr1 is strictly less than expr2.
-.IP "expr1 <= expr2"
-The result is 1 if expr1 is less than or equal to expr2.
-.IP "expr1 > expr2"
-The result is 1 if expr1 is strictly greater than expr2.
-.IP "expr1 >= expr2"
-The result is 1 if expr1 is greater than or equal to expr2.
-.IP "expr1 == expr2"
-The result is 1 if expr1 is equal to expr2.
-.IP "expr1 != expr2"
-The result is 1 if expr1 is not equal to expr2.
-.PP
-Boolean operations are also legal.  (POSIX \fBbc\fR does NOT have
-boolean operations). The result of all boolean operations are 0 and 1
-(for false and true) as in relational expressions.  The boolean
-operators are:
-.IP "!expr"
-The result is 1 if expr is 0.
-.IP "expr && expr"
-The result is 1 if both expressions are non-zero.
-.IP "expr || expr"
-The result is 1 if either expression is non-zero.
-.PP
-The expression precedence is as follows: (lowest to highest)
-.nf
-.RS
-|| operator, left associative
-&& operator, left associative
-! operator, nonassociative
-Relational operators, left associative
-Assignment operator, right associative
-+ and - operators, left associative
-*, / and % operators, left associative
-^ operator, right associative
-unary - operator, nonassociative
-++ and -- operators, nonassociative
-.RE
-.fi
-.PP
-This precedence was chosen so that POSIX compliant \fBbc\fR programs
-will run correctly. This will cause the use of the relational and
-logical operators to have some unusual behavior when used with
-assignment expressions.  Consider the expression:
-.RS
-a = 3 < 5
-.RE
-.PP
-Most C programmers would assume this would assign the result of "3 <
-5" (the value 1) to the variable "a".  What this does in \fBbc\fR is
-assign the value 3 to the variable "a" and then compare 3 to 5.  It is
-best to use parenthesis when using relational and logical operators
-with the assignment operators.
-.PP
-There are a few more special expressions that are provided in \fBbc\fR.
-These have to do with user defined functions and standard
-functions.  They all appear as "\fIname\fB(\fIparameters\fB)\fR".
-See the section on functions for user defined functions.  The standard
-functions are:
-.IP "length ( expression )"
-The value of the length function is the number of significant digits in the
-expression.
-.IP "read ( )"
-The read function (an extension) will read a number from the standard
-input, regardless of where the function occurs.   Beware, this can
-cause problems with the mixing of data and program in the standard input.
-The best use for this function is in a previously written program that
-needs input from the user, but never allows program code to be input
-from the user.  The value of the read function is the number read from
-the standard input using the current value of the variable 
-\fBibase\fR for the conversion base.
-.IP "scale ( expression )"
-The value of the scale function is the number of digits after the decimal
-point in the expression.
-.IP "sqrt ( expression )"
-The value of the sqrt function is the square root of the expression.  If
-the expression is negative, a run time error is generated.
-.SS STATEMENTS
-Statements (as in most algebraic languages) provide the sequencing of
-expression evaluation.  In \fBbc\fR statements are executed "as soon
-as possible."  Execution happens when a newline in encountered and
-there is one or more complete statements.  Due to this immediate
-execution, newlines are very important in \fBbc\fR. In fact, both a
-semicolon and a newline are used as statement separators.  An
-improperly placed newline will cause a syntax error.  Because newlines
-are statement separators, it is possible to hide a newline by using
-the backslash character.  The sequence "\e<nl>", where <nl> is the
-newline appears to \fBbc\fR as whitespace instead of a newline.  A
-statement list is a series of statements separated by semicolons and
-newlines.  The following is a list of \fBbc\fR statements and what
-they do: (Things enclosed in brackets ([]) are optional parts of the
-statement.)
-.IP "expression"
-This statement does one of two things.  If the expression starts with
-"<variable> <assignment> ...", it is considered to be an assignment
-statement.  If the expression is not an assignment statement, the
-expression is evaluated and printed to the output.  After the number
-is printed, a newline is printed.  For example, "a=1" is an assignment
-statement and "(a=1)" is an expression that has an embedded
-assignment.  All numbers that are printed are printed in the base
-specified by the variable \fBobase\fR. The legal values for \fB
-obase\fR are 2 through BC_BASE_MAX.  (See the section LIMITS.)  For
-bases 2 through 16, the usual method of writing numbers is used.  For
-bases greater than 16, \fBbc\fR uses a multi-character digit method
-of printing the numbers where each higher base digit is printed as a
-base 10 number.  The multi-character digits are separated by spaces.
-Each digit contains the number of characters required to represent the
-base ten value of "obase-1".  Since numbers are of arbitrary
-precision, some numbers may not be printable on a single output line.
-These long numbers will be split across lines using the "\e" as the
-last character on a line.  The maximum number of characters printed
-per line is 70.  Due to the interactive nature of \fBbc\fR printing
-a number cause the side effect of assigning the printed value the
-special variable \fBlast\fR. This allows the user to recover the
-last value printed without having to retype the expression that
-printed the number.  Assigning to \fBlast\fR is legal and will
-overwrite the last printed value with the assigned value.  The newly
-assigned value will remain until the next number is printed or another
-value is assigned to \fBlast\fR.  (Some installations may allow the 
-use of a single period (.) which is not part of a number as a short
-hand notation for for \fBlast\fR.)
-.IP "string"
-The string is printed to the output.  Strings start with a double quote
-character and contain all characters until the next double quote character.
-All characters are take literally, including any newline.  No newline
-character is printed after the string.
-.IP "\fBprint\fR list"
-The print statement (an extension) provides another method of output.
-The "list" is a list of strings and expressions separated by commas.
-Each string or expression is printed in the order of the list.  No
-terminating newline is printed.  Expressions are evaluated and their
-value is printed and assigned the variable \fBlast\fR. Strings
-in the print statement are printed to the output and may contain
-special characters.  Special characters start with the backslash
-character (\e).  The special characters recognized by \fBbc\fR are
-"a" (alert or bell), "b" (backspace), "f" (form feed), "n" (newline),
-"r" (carriage return), "q" (double quote), "t" (tab), and "\e" (backslash).
-Any other character following the backslash will be ignored.  
-.IP "{ statement_list }"
-This is the compound statement.  It allows multiple statements to be
-grouped together for execution.
-.IP "\fBif\fR ( expression ) \fBthen\fR statement1 [\fBelse\fR statement2]"
-The if statement evaluates the expression and executes statement1 or
-statement2 depending on the value of the expression.  If the expression
-is non-zero, statement1 is executed.  If statement2 is present and
-the value of the expression is 0, then statement2 is executed.  (The
-else clause is an extension.)
-.IP "\fBwhile\fR ( expression ) statement"
-The while statement will execute the statement while the expression
-is non-zero.  It evaluates the expression before each execution of
-the statement.   Termination of the loop is caused by a zero
-expression value or the execution of a break statement.
-.IP "\fBfor\fR ( [expression1] ; [expression2] ; [expression3] ) statement"
-The for statement controls repeated execution of the statement.  
-Expression1 is evaluated before the loop.  Expression2 is evaluated
-before each execution of the statement.  If it is non-zero, the statement
-is evaluated.  If it is zero, the loop is terminated.  After each
-execution of the statement, expression3 is evaluated before the reevaluation
-of expression2.  If expression1 or expression3 are missing, nothing is
-evaluated at the point they would be evaluated.
-If expression2 is missing, it is the same as substituting
-the value 1 for expression2.  (The optional expressions are an
-extension. POSIX \fBbc\fR requires all three expressions.)
-The following is equivalent code for the for statement:
-.nf
-.RS
-expression1;
-while (expression2) {
-   statement;
-   expression3;
-}
-.RE
-.fi
-.IP "\fBbreak\fR"
-This statement causes a forced exit of the most recent enclosing while
-statement or for statement.
-.IP "\fBcontinue\fR"
-The continue statement (an extension)  causes the most recent enclosing
-for statement to start the next iteration.
-.IP "\fBhalt\fR"
-The halt statement (an extension) is an executed statement that causes
-the \fBbc\fR processor to quit only when it is executed.  For example,
-"if (0 == 1) halt" will not cause \fBbc\fR to terminate because the halt is
-not executed.
-.IP "\fBreturn\fR"
-Return the value 0 from a function.  (See the section on functions.)
-.IP "\fBreturn\fR ( expression )"
-Return the value of the expression from a function.  (See the section on 
-functions.)
-.SS PSEUDO STATEMENTS
-These statements are not statements in the traditional sense.  They are
-not executed statements.  Their function is performed at "compile" time.
-.IP "\fBlimits\fR"
-Print the local limits enforced by the local version of \fBbc\fR.  This
-is an extension.
-.IP "\fBquit\fR"
-When the quit statement is read, the \fBbc\fR processor
-is terminated, regardless of where the quit statement is found.  For
-example, "if (0 == 1) quit" will cause \fBbc\fR to terminate.
-.IP "\fBwarranty\fR"
-Print a longer warranty notice.  This is an extension.
-.SS FUNCTIONS
-Functions provide a method of defining a computation that can be executed
-later.  Functions in 
-.B bc
-always compute a value and return it to the caller.  Function definitions
-are "dynamic" in the sense that a function is undefined until a definition
-is encountered in the input.  That definition is then used until another
-definition function for the same name is encountered.  The new definition
-then replaces the older definition.  A function is defined as follows:
-.nf
-.RS
-\fBdefine \fIname \fB( \fIparameters \fB) { \fInewline
-\fI    auto_list   statement_list \fB}\fR
-.RE
-.fi
-A function call is just an expression of the form
-"\fIname\fB(\fIparameters\fB)\fR".
-.PP
-Parameters are numbers or arrays (an extension).  In the function definition,
-zero or more parameters are defined by listing their names separated by
-commas.  Numbers are only call by value parameters.  Arrays are only
-call by variable.  Arrays are specified in the parameter definition by
-the notation "\fIname\fB[]\fR".   In the function call, actual parameters
-are full expressions for number parameters.  The same notation is used
-for passing arrays as for defining array parameters.  The named array is
-passed by variable to the function.  Since function definitions are dynamic,
-parameter numbers and types are checked when a function is called.  Any
-mismatch in number or types of parameters will cause a runtime error.
-A runtime error will also occur for the call to an undefined function.
-.PP
-The \fIauto_list\fR is an optional list of variables that are for
-"local" use.  The syntax of the auto list (if present) is "\fBauto
-\fIname\fR, ... ;".  (The semicolon is optional.)  Each \fIname\fR is
-the name of an auto variable.  Arrays may be specified by using the
-same notation as used in parameters.  These variables have their
-values pushed onto a stack at the start of the function.  The
-variables are then initialized to zero and used throughout the
-execution of the function.  At function exit, these variables are
-popped so that the original value (at the time of the function call)
-of these variables are restored.  The parameters are really auto
-variables that are initialized to a value provided in the function
-call.  Auto variables are different than traditional local variables
-in the fact that if function A calls function B, B may access function
-A's auto variables by just using the same name, unless function B has
-called them auto variables.  Due to the fact that auto variables and
-parameters are pushed onto a stack, \fBbc\fR supports recursive functions.
-.PP
-The function body is a list of \fBbc\fR statements.  Again, statements
-are separated by semicolons or newlines.  Return statements cause the
-termination of a function and the return of a value.  There are two
-versions of the return statement.  The first form, "\fBreturn\fR", returns
-the value 0 to the calling expression.  The second form, 
-"\fBreturn ( \fIexpression \fB)\fR", computes the value of the expression
-and returns that value to the calling expression.  There is an implied
-"\fBreturn (0)\fR" at the end of every function.  This allows a function
-to terminate and return 0 without an explicit return statement.
-.PP
-Functions also change the usage of the variable \fBibase\fR.  All
-constants in the function body will be converted using the value of
-\fBibase\fR at the time of the function call.  Changes of \fBibase\fR
-will be ignored during the execution of the function except for the
-standard function \fBread\fR, which will always use the current value
-of \fBibase\fR for conversion of numbers.
-.SS MATH LIBRARY
-If \fBbc\fR is invoked with the \fB-l\fR option, a math library is preloaded
-and the default scale is set to 20.   The math functions will calculate their
-results to the scale set at the time of their call.  
-The math library defines the following functions:
-.IP "s (\fIx\fR)"
-The sine of x in radians.
-.IP "c (\fIx\fR)"
-The cosine of x in radians.
-.IP "a (\fIx\fR)"
-The arctangent of x.
-.IP "l (\fIx\fR)"
-The natural logarithm of x.
-.IP "e (\fIx\fR)"
-The exponential function of raising e to the value x.
-.IP "j (\fIn,x\fR)"
-The bessel function of integer order n of x.
-.SS EXAMPLES
-In /bin/sh,  the following will assign the value of "pi" to the shell
-variable \fBpi\fR.
-.RS
-\f(CW
-pi=$(echo "scale=10; 4*a(1)" | bc -l)
-\fR
-.RE
-.PP
-The following is the definition of the exponential function used in the
-math library.  This function is written in POSIX \fBbc\fR.
-.nf
-.RS
-\f(CW
-scale = 20
-
-/* Uses the fact that e^x = (e^(x/2))^2
-   When x is small enough, we use the series:
-     e^x = 1 + x + x^2/2! + x^3/3! + ...
-*/
-
-define e(x) {
-  auto  a, d, e, f, i, m, v, z
-
-  /* Check the sign of x. */
-  if (x<0) {
-    m = 1
-    x = -x
-  } 
-
-  /* Precondition x. */
-  z = scale;
-  scale = 4 + z + .44*x;
-  while (x > 1) {
-    f += 1;
-    x /= 2;
-  }
-
-  /* Initialize the variables. */
-  v = 1+x
-  a = x
-  d = 1
-
-  for (i=2; 1; i++) {
-    e = (a *= x) / (d *= i)
-    if (e == 0) {
-      if (f>0) while (f--)  v = v*v;
-      scale = z
-      if (m) return (1/v);
-      return (v/1);
-    }
-    v += e
-  }
-}
-\fR
-.RE
-.fi
-.PP
-The following is code that uses the extended features of \fBbc\fR to
-implement a simple program for calculating checkbook balances.  This
-program is best kept in a file so that it can be used many times 
-without having to retype it at every use.
-.nf
-.RS
-\f(CW
-scale=2
-print "\enCheck book program!\en"
-print "  Remember, deposits are negative transactions.\en"
-print "  Exit by a 0 transaction.\en\en"
-
-print "Initial balance? "; bal = read()
-bal /= 1
-print "\en"
-while (1) {
-  "current balance = "; bal
-  "transaction? "; trans = read()
-  if (trans == 0) break;
-  bal -= trans
-  bal /= 1
-}
-quit
-\fR
-.RE
-.fi
-.PP
-The following is the definition of the recursive factorial function.
-.nf
-.RS
-\f(CW
-define f (x) {
-  if (x <= 1) return (1);
-  return (f(x-1) * x);
-}
-\fR
-.RE
-.fi
-.SS DIFFERENCES
-This version of 
-.B bc
-was implemented from the POSIX P1003.2/D11 draft and contains
-several differences and extensions relative to the draft and
-traditional implementations.
-It is not implemented in the traditional way using
-.I dc(1).
-This version is a single process which parses and runs a byte code
-translation of the program.  There is an "undocumented" option (-c)
-that causes the program to output the byte code to
-the standard output instead of running it.  It was mainly used for
-debugging the parser and preparing the math library.
-.PP
-A major source of differences is
-extensions, where a feature is extended to add more functionality and
-additions, where new features are added. 
-The following is the list of differences and extensions.
-.IP LANG environment
-This version does not conform to the POSIX standard in the processing
-of the LANG environment variable and all environment variables starting
-with LC_.
-.IP names
-Traditional and POSIX
-.B bc
-have single letter names for functions, variables and arrays.  They have
-been extended to be multi-character names that start with a letter and
-may contain letters, numbers and the underscore character.
-.IP Strings
-Strings are not allowed to contain NUL characters.  POSIX says all characters
-must be included in strings.
-.IP last
-POSIX \fBbc\fR does not have a \fBlast\fR variable.  Some implementations
-of \fBbc\fR use the period (.) in a similar way.  
-.IP comparisons
-POSIX \fBbc\fR allows comparisons only in the if statement, the while
-statement, and the second expression of the for statement.  Also, only
-one relational operation is allowed in each of those statements.
-.IP "if statement, else clause"
-POSIX \fBbc\fR does not have an else clause.
-.IP "for statement"
-POSIX \fBbc\fR requires all expressions to be present in the for statement.
-.IP "&&, ||, !"
-POSIX \fBbc\fR does not have the logical operators.
-.IP "read function"
-POSIX \fBbc\fR does not have a read function.
-.IP "print statement"
-POSIX \fBbc\fR does not have a print statement .
-.IP "continue statement"
-POSIX \fBbc\fR does not have a continue statement.
-.IP "array parameters"
-POSIX \fBbc\fR does not have array parameters.  Other implementations
-of \fBbc\fR may have call by value array parameters.
-.IP "=+, =-, =*, =/, =%, =^"
-POSIX \fBbc\fR does not require these "old style" assignment operators to
-be defined.  This version may allow these "old style" assignments.  Use
-the limits statement to see if the installed version supports them.  If
-it does support the "old style" assignment operators, the statement
-"a =- 1" will decrement \fBa\fR by 1 instead of setting \fBa\fR to the
-value -1.
-.IP "spaces in numbers"
-Other implementations of \fBbc\fR allow spaces in numbers.  For example,
-"x=1 3" would assign the value 13 to the variable x.  The same statement
-would cause a syntax error in this version of \fBbc\fR.
-.IP "errors and execution"
-This implementation varies from other implementations in terms of what
-code will be executed when syntax and other errors are found in the
-program.  If a syntax error is found in a function definition, error
-recovery tries to find the beginning of a statement and continue to
-parse the function.  Once a syntax error is found in the function, the
-function will not be callable and becomes undefined.
-Syntax errors in the interactive execution code will invalidate the
-current execution block.  The execution block is terminated by an
-end of line that appears after a complete sequence of statements.
-For example, 
-.nf
-.RS
-a = 1
-b = 2
-.RE
-.fi
-has two execution blocks and
-.nf
-.RS
-{ a = 1
-  b = 2 }
-.RE
-.fi
-has one execution block.  Any runtime error will terminate the execution
-of the current execution block.  A runtime warning will not terminate the
-current execution block.
-.IP "Interrupts"
-During an interactive session, the SIGINT signal (usually generated by
-the control-C character from the terminal) will cause execution of the
-current execution block to be interrupted.  It will display a "runtime"
-error indicating which function was interrupted.  After all runtime
-structures have been cleaned up, a message will be printed to notify the
-user that \fBbc\fR is ready for more input.  All previously defined functions
-remain defined and the value of all non-auto variables are the value at
-the point of interruption.  All auto variables and function parameters
-are removed during the
-clean up process.  During a non-interactive
-session, the SIGINT signal will terminate the entire run of \fBbc\fR.
-.SS LIMITS
-The following are the limits currently in place for this 
-.B bc
-processor.  Some of them may have been changed by an installation.
-Use the limits statement to see the actual values.
-.IP BC_BASE_MAX
-The maximum output base is currently set at 999.  The maximum input base
-is 16.
-.IP BC_DIM_MAX
-This is currently an arbitrary limit of 65535 as distributed.  Your
-installation may be different.
-.IP BC_SCALE_MAX
-The number of digits after the decimal point is limited to INT_MAX digits.
-Also, the number of digits before the decimal point is limited to INT_MAX
-digits.
-.IP BC_STRING_MAX
-The limit on the number of characters in a string is INT_MAX characters.
-.IP exponent
-The value of the exponent in the raise operation (^) is limited to LONG_MAX.
-.IP multiply
-The multiply routine may yield incorrect results if a number
-has more than LONG_MAX / 90 total digits.  For 32 bit longs, this number is
-23,860,929 digits.
-.IP "code size"
-Each function and the "main" program are limited to 16384 bytes of
-compiled byte code each.  This limit (BC_MAX_SEGS) can be easily changed
-to have more than 16 segments of 1024 bytes.
-.IP "variable names"
-The current limit on the number of unique names is 32767 for each of
-simple variables, arrays and functions.
-.SH FILES
-In most installations, \fBbc\fR is completely self-contained.
-Where executable size is of importance or the C compiler does
-not deal with very long strings, \fBbc\fR will read
-the standard math library from the file /usr/local/lib/libmath.b.
-(The actual location may vary.  It may be /lib/libmath.b.)
-.SH DIAGNOSTICS
-If any file on the command line can not be opened, \fBbc\fR will report
-that the file is unavailable and terminate.  Also, there are compile
-and run time diagnostics that should be self-explanatory.
-.SH BUGS
-Error recovery is not very good yet.
-.SH AUTHOR
-.nf
-Philip A. Nelson
-phil@cs.wwu.edu
-.fi
-.SH ACKNOWLEDGEMENTS
-The author would like to thank Steve Sommars (Steve.Sommars@att.com) for
-his extensive help in testing the implementation.  Many great suggestions
-were given.  This is a much better product due to his involvement.
diff --git a/gnu/usr.bin/bc/bc.y b/gnu/usr.bin/bc/bc.y
deleted file mode 100644
index 2c888c319fdc..000000000000
--- a/gnu/usr.bin/bc/bc.y
+++ /dev/null
@@ -1,615 +0,0 @@
-%{
-/* bc.y: The grammar for a POSIX compatable bc processor with some
-         extensions to the language. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-       
-*************************************************************************/
-
-#include "bcdefs.h"
-#include "global.h"
-#include "proto.h"
-%}
-
-%start program
-
-%union {
-	char	 *s_value;
-	char	  c_value;
-	int	  i_value;
-	arg_list *a_value;
-       }
-
-/* Extensions over POSIX bc.
-   a) NAME was LETTER.  This grammer allows longer names.
-      Single letter names will still work.
-   b) Relational_expression allowed only one comparison.
-      This grammar has added boolean expressions with
-      && (and) || (or) and ! (not) and allowed all of them in
-      full expressions.
-   c) Added an else to the if.
-   d) Call by variable array parameters
-   e) read() procedure that reads a number under program control from stdin.
-   f) halt statement that halts the the program under program control.  It
-      is an executed statement.
-   g) continue statement for for loops.
-   h) optional expressions in the for loop.
-   i) print statement to print multiple numbers per line.
-   j) warranty statement to print an extended warranty notice.
-   j) limits statement to print the processor's limits.
-*/
-
-%token <i_value> NEWLINE AND OR NOT
-%token <s_value> STRING NAME NUMBER
-/*     '-', '+' are tokens themselves		*/
-%token <c_value> MUL_OP
-/*     '*', '/', '%' 				*/
-%token <c_value> ASSIGN_OP
-/*     '=', '+=',  '-=', '*=', '/=', '%=', '^=' */
-%token <s_value> REL_OP
-/*     '==', '<=', '>=', '!=', '<', '>' 	*/
-%token <c_value> INCR_DECR
-/*     '++', '--' 				*/
-%token <i_value> Define    Break    Quit    Length
-/*     'define', 'break', 'quit', 'length' 	*/
-%token <i_value> Return    For    If    While    Sqrt   Else
-/*     'return', 'for', 'if', 'while', 'sqrt', 'else' 	*/
-%token <i_value> Scale    Ibase    Obase    Auto  Read
-/*     'scale', 'ibase', 'obase', 'auto', 'read' 	*/
-%token <i_value> Warranty, Halt, Last, Continue, Print, Limits
-/*     'warranty', 'halt', 'last', 'continue', 'print', 'limits'   */
-
-/* Types of all other things. */
-%type <i_value> expression return_expression named_expression opt_expression
-%type <c_value> '+' '-' 
-%type <a_value> opt_parameter_list opt_auto_define_list define_list
-%type <a_value> opt_argument_list argument_list
-%type <i_value> program input_item semicolon_list statement_list
-%type <i_value> statement function   statement_or_error
-
-/* precedence */
-%left OR
-%left AND
-%nonassoc NOT
-%left REL_OP
-%right ASSIGN_OP
-%left '+' '-'
-%left MUL_OP
-%right '^'
-%nonassoc UNARY_MINUS
-%nonassoc INCR_DECR
-
-%%
-program			: /* empty */
-			    {
-			      $$ = 0;
-			      if (interactive)
-				{
-				  printf ("%s\n", BC_VERSION);
-				  welcome ();
-				}
-			    }
-			| program input_item
-			;
-input_item		: semicolon_list NEWLINE
-			    { run_code (); }
-			| function
-			    { run_code (); }
-			| error NEWLINE
-			    {
-			      yyerrok;
-			      init_gen ();
-			    }
-			;
-semicolon_list		: /* empty */
-			    { $$ = 0; }
-			| statement_or_error
-			| semicolon_list ';' statement_or_error
-			| semicolon_list ';'
-			;
-statement_list		: /* empty */
-			    { $$ = 0; }
-			| statement_or_error
-			| statement_list NEWLINE
-			| statement_list NEWLINE statement_or_error
-			| statement_list ';'
-			| statement_list ';' statement
-			;
-statement_or_error	: statement
-  			| error statement
-			    { $$ = $2; }
-			;
-statement 		: Warranty
-			    { warranty (""); }
-			| Limits
-			    { limits (); }
-			| expression
-			    {
-			      if ($1 & 2)
-				warn ("comparison in expression");
-			      if ($1 & 1)
-				generate ("W");
-			      else 
-				generate ("p");
-			    }
-			| STRING
-			    {
-			      $$ = 0;
-			      generate ("w");
-			      generate ($1);
-			      free ($1);
-			    }
-			| Break
-			    {
-			      if (break_label == 0)
-				yyerror ("Break outside a for/while");
-			      else
-				{
-				  sprintf (genstr, "J%1d:", break_label);
-				  generate (genstr);
-				}
-			    }
-			| Continue
-			    {
-			      warn ("Continue statement");
-			      if (continue_label == 0)
-				yyerror ("Continue outside a for");
-			      else
-				{
-				  sprintf (genstr, "J%1d:", continue_label);
-				  generate (genstr);
-				}
-			    }
-			| Quit
-			    { exit (0); }
-			| Halt
-			    { generate ("h"); }
-			| Return
-			    { generate ("0R"); }
-			| Return '(' return_expression ')'
-			    { generate ("R"); }
-			| For 
-			    {
-			      $1 = break_label; 
-			      break_label = next_label++;
-			    }
-			  '(' opt_expression ';'
-			    {
-			      if ($4 > 1)
-				warn ("Comparison in first for expression");
-			      $4 = next_label++;
-			      if ($4 < 0)
-				sprintf (genstr, "N%1d:", $4);
-			      else
-				sprintf (genstr, "pN%1d:", $4);
-			      generate (genstr);
-			    }
-			  opt_expression ';'
-			    {
-			      if ($7 < 0) generate ("1");
-			      $7 = next_label++;
-			      sprintf (genstr, "B%1d:J%1d:", $7, break_label);
-			      generate (genstr);
-			      $<i_value>$ = continue_label;
-			      continue_label = next_label++;
-			      sprintf (genstr, "N%1d:", continue_label);
-			      generate (genstr);
-			    }
-			  opt_expression ')'
-			    {
-			      if ($10 > 1)
-				warn ("Comparison in third for expression");
-			      if ($10 < 0)
-				sprintf (genstr, "J%1d:N%1d:", $4, $7);
-			      else
-				sprintf (genstr, "pJ%1d:N%1d:", $4, $7);
-			      generate (genstr);
-			    }
-			  statement
-			    {
-			      sprintf (genstr, "J%1d:N%1d:",
-				       continue_label, break_label);
-			      generate (genstr);
-			      break_label = $1;
-			      continue_label = $<i_value>9;
-			    }
-			| If '(' expression ')' 
-			    {
-			      $3 = if_label;
-			      if_label = next_label++;
-			      sprintf (genstr, "Z%1d:", if_label);
-			      generate (genstr);
-			    }
-			  statement  opt_else
-			    {
-			      sprintf (genstr, "N%1d:", if_label); 
-			      generate (genstr);
-			      if_label = $3;
-			    }
-			| While 
-			    {
-			      $1 = next_label++;
-			      sprintf (genstr, "N%1d:", $1);
-			      generate (genstr);
-			    }
-			'(' expression 
-			    {
-			      $4 = break_label; 
-			      break_label = next_label++;
-			      sprintf (genstr, "Z%1d:", break_label);
-			      generate (genstr);
-			    }
-			')' statement
-			    {
-			      sprintf (genstr, "J%1d:N%1d:", $1, break_label);
-			      generate (genstr);
-			      break_label = $4;
-			    }
-			| '{' statement_list '}'
-			    { $$ = 0; }
-			| Print
-			    {  warn ("print statement"); }
-			  print_list
-			;
-print_list		: print_element
- 			| print_element ',' print_list
-			;
-print_element		: STRING
-			    {
-			      generate ("O");
-			      generate ($1);
-			      free ($1);
-			    }
-			| expression
-			    { generate ("P"); }
- 			;
-opt_else		: /* nothing */
-			| Else 
-			    {
-			      warn ("else clause in if statement");
-			      $1 = next_label++;
-			      sprintf (genstr, "J%d:N%1d:", $1, if_label); 
-			      generate (genstr);
-			      if_label = $1;
-			    }
-			  statement
-function 		: Define NAME '(' opt_parameter_list ')' '{'
-			  NEWLINE opt_auto_define_list 
-			    {
-			      /* Check auto list against parameter list? */
-			      check_params ($4,$8);
-			      sprintf (genstr, "F%d,%s.%s[",
-				       lookup($2,FUNCTDEF), 
-				       arg_str ($4), arg_str ($8));
-			      generate (genstr);
-			      free_args ($4);
-			      free_args ($8);
-			      $1 = next_label;
-			      next_label = 1;
-			    }
-			  statement_list /* NEWLINE */ '}'
-			    {
-			      generate ("0R]");
-			      next_label = $1;
-			    }
-			;
-opt_parameter_list	: /* empty */ 
-			    { $$ = NULL; }
-			| define_list
-			;
-opt_auto_define_list 	: /* empty */ 
-			    { $$ = NULL; }
-			| Auto define_list NEWLINE
-			    { $$ = $2; } 
-			| Auto define_list ';'
-			    { $$ = $2; } 
-			;
-define_list 		: NAME
-			    { $$ = nextarg (NULL, lookup ($1,SIMPLE)); }
-			| NAME '[' ']'
-			    { $$ = nextarg (NULL, lookup ($1,ARRAY)); }
-			| define_list ',' NAME
-			    { $$ = nextarg ($1, lookup ($3,SIMPLE)); }
-			| define_list ',' NAME '[' ']'
-			    { $$ = nextarg ($1, lookup ($3,ARRAY)); }
-			;
-opt_argument_list	: /* empty */
-			    { $$ = NULL; }
-			| argument_list
-			;
-argument_list 		: expression
-			    {
-			      if ($1 > 1) warn ("comparison in argument");
-			      $$ = nextarg (NULL,0);
-			    }
-			| NAME '[' ']'
-			    {
-			      sprintf (genstr, "K%d:", -lookup ($1,ARRAY));
-			      generate (genstr);
-			      $$ = nextarg (NULL,1);
-			    }
-			| argument_list ',' expression
-			    {
-			      if ($3 > 1) warn ("comparison in argument");
-			      $$ = nextarg ($1,0);
-			    }
-			| argument_list ',' NAME '[' ']'
-			    {
-			      sprintf (genstr, "K%d:", -lookup ($3,ARRAY));
-			      generate (genstr);
-			      $$ = nextarg ($1,1);
-			    }
-			;
-opt_expression 		: /* empty */
-			    {
-			      $$ = -1;
-			      warn ("Missing expression in for statement");
-			    }
-			| expression
-			;
-return_expression	: /* empty */
-			    {
-			      $$ = 0;
-			      generate ("0");
-			    }
-			| expression
-			    {
-			      if ($1 > 1)
-				warn ("comparison in return expresion");
-			    }
-			;
-expression		:  named_expression ASSIGN_OP 
-			    {
-			      if ($2 != '=')
-				{
-				  if ($1 < 0)
-				    sprintf (genstr, "DL%d:", -$1);
-				  else
-				    sprintf (genstr, "l%d:", $1);
-				  generate (genstr);
-				}
-			    }
-			  expression
-			    {
-			      if ($4 > 1) warn("comparison in assignment");
-			      if ($2 != '=')
-				{
-				  sprintf (genstr, "%c", $2);
-				  generate (genstr);
-				}
-			      if ($1 < 0)
-				sprintf (genstr, "S%d:", -$1);
-			      else
-				sprintf (genstr, "s%d:", $1);
-			      generate (genstr);
-			      $$ = 0;
-			    }
-			;
-			| expression AND 
-			    {
-			      warn("&& operator");
-			      $2 = next_label++;
-			      sprintf (genstr, "DZ%d:p", $2);
-			      generate (genstr);
-			    }
-			  expression
-			    {
-			      sprintf (genstr, "DZ%d:p1N%d:", $2, $2);
-			      generate (genstr);
-			      $$ = $1 | $4;
-			    }
-			| expression OR
-			    {
-			      warn("|| operator");
-			      $2 = next_label++;
-			      sprintf (genstr, "B%d:", $2);
-			      generate (genstr);
-			    }
-			  expression
- 			    {
-			      int tmplab;
-			      tmplab = next_label++;
-			      sprintf (genstr, "B%d:0J%d:N%d:1N%d:",
-				       $2, tmplab, $2, tmplab);
-			      generate (genstr);
-			      $$ = $1 | $4;
-			    }
-			| NOT expression
-			    {
-			      $$ = $2;
-			      warn("! operator");
-			      generate ("!");
-			    }
-			| expression REL_OP expression
-			    {
-			      $$ = 3;
-			      switch (*($2))
-				{
-				case '=':
-				  generate ("=");
-				  break;
-
-				case '!':
-				  generate ("#");
-				  break;
-
-				case '<':
-				  if ($2[1] == '=')
-				    generate ("{");
-				  else
-				    generate ("<");
-				  break;
-
-				case '>':
-				  if ($2[1] == '=')
-				    generate ("}");
-				  else
-				    generate (">");
-				  break;
-				}
-			    }
-			| expression '+' expression
-			    {
-			      generate ("+");
-			      $$ = $1 | $3;
-			    }
-			| expression '-' expression
-			    {
-			      generate ("-");
-			      $$ = $1 | $3;
-			    }
-			| expression MUL_OP expression
-			    {
-			      genstr[0] = $2;
-			      genstr[1] = 0;
-			      generate (genstr);
-			      $$ = $1 | $3;
-			    }
-			| expression '^' expression
-			    {
-			      generate ("^");
-			      $$ = $1 | $3;
-			    }
-			| '-' expression  %prec UNARY_MINUS
-			    {
-			      generate ("n");
-			      $$ = $2;
-			    }
-			| named_expression
-			    {
-			      $$ = 1;
-			      if ($1 < 0)
-				sprintf (genstr, "L%d:", -$1);
-			      else
-				sprintf (genstr, "l%d:", $1);
-			      generate (genstr);
-			    }
-			| NUMBER
-			    {
-			      int len = strlen($1);
-			      $$ = 1;
-			      if (len == 1 && *$1 == '0')
-				generate ("0");
-			      else if (len == 1 && *$1 == '1')
-				generate ("1");
-			      else
-				{
-				  generate ("K");
-				  generate ($1);
-				  generate (":");
-				}
-			      free ($1);
-			    }
-			| '(' expression ')'
-			    { $$ = $2 | 1; }
-			| NAME '(' opt_argument_list ')'
-			    {
-			      $$ = 1;
-			      if ($3 != NULL)
-				{ 
-				  sprintf (genstr, "C%d,%s:",
-					   lookup ($1,FUNCT),
-					   call_str ($3));
-				  free_args ($3);
-				}
-			      else
-				{
-				  sprintf (genstr, "C%d:", lookup ($1,FUNCT));
-				}
-			      generate (genstr);
-			    }
-			| INCR_DECR named_expression
-			    {
-			      $$ = 1;
-			      if ($2 < 0)
-				{
-				  if ($1 == '+')
-				    sprintf (genstr, "DA%d:L%d:", -$2, -$2);
-				  else
-				    sprintf (genstr, "DM%d:L%d:", -$2, -$2);
-				}
-			      else
-				{
-				  if ($1 == '+')
-				    sprintf (genstr, "i%d:l%d:", $2, $2);
-				  else
-				    sprintf (genstr, "d%d:l%d:", $2, $2);
-				}
-			      generate (genstr);
-			    }
-			| named_expression INCR_DECR
-			    {
-			      $$ = 1;
-			      if ($1 < 0)
-				{
-				  sprintf (genstr, "DL%d:x", -$1);
-				  generate (genstr); 
-				  if ($2 == '+')
-				    sprintf (genstr, "A%d:", -$1);
-				  else
-				      sprintf (genstr, "M%d:", -$1);
-				}
-			      else
-				{
-				  sprintf (genstr, "l%d:", $1);
-				  generate (genstr);
-				  if ($2 == '+')
-				    sprintf (genstr, "i%d:", $1);
-				  else
-				    sprintf (genstr, "d%d:", $1);
-				}
-			      generate (genstr);
-			    }
-			| Length '(' expression ')'
-			    { generate ("cL"); $$ = 1;}
-			| Sqrt '(' expression ')'
-			    { generate ("cR"); $$ = 1;}
-			| Scale '(' expression ')'
-			    { generate ("cS"); $$ = 1;}
-			| Read '(' ')'
-			    {
-			      warn ("read function");
-			      generate ("cI"); $$ = 1;
-			    }
-			;
-named_expression	: NAME
-			    { $$ = lookup($1,SIMPLE); }
-			| NAME '[' expression ']'
-			    {
-			      if ($3 > 1) warn("comparison in subscript");
-			      $$ = lookup($1,ARRAY);
-			    }
-			| Ibase
-			    { $$ = 0; }
-			| Obase
-			    { $$ = 1; }
-			| Scale
-			    { $$ = 2; }
-			| Last
-			    { $$ = 3;
-			      warn ("Last variable");
-			    }
-			;
-%%
diff --git a/gnu/usr.bin/bc/bcdefs.h b/gnu/usr.bin/bc/bcdefs.h
deleted file mode 100644
index 455530d9bad4..000000000000
--- a/gnu/usr.bin/bc/bcdefs.h
+++ /dev/null
@@ -1,154 +0,0 @@
-/* bcdefs.h:  The single file to include all constants and type definitions. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-/* Include the configuration file. */
-#include "config.h"
-
-/* Standard includes for all files. */
-#include <stdio.h>
-#include <sys/types.h>
-#include <ctype.h>
-#ifdef STRINGS_H
-#include <strings.h>
-#else
-#include <string.h>
-#endif
-#ifndef NO_LIMITS
-#include <limits.h>
-#endif
-
-/* Include the other definitions. */
-#include "const.h"
-#include "number.h"
-
-
-/* These definitions define all the structures used in
-   code and data storage.  This includes the representation of
-   labels.   The "guiding" principle is to make structures that
-   take a minimum of space when unused but can be built to contain
-   the full structures.  */
-
-/* Labels are first.  Labels are generated sequentially in functions
-   and full code.  They just "point" to a single bye in the code.  The
-   "address" is the byte number.  The byte number is used to get an
-   actual character pointer. */
-
-typedef struct bc_label_group
-    {
-      long l_adrs [ BC_LABEL_GROUP ];
-      struct bc_label_group *l_next;
-    } bc_label_group;
-
-
-/* Each function has its own code segments and labels.  There can be
-   no jumps between functions so labels are unique to a function. */
-
-typedef struct arg_list
-    {
-      int av_name;
-      struct arg_list *next;
-    } arg_list;
-
-typedef struct
-    {
-      char f_defined;   /* Is this function defined yet. */
-      char *f_body[BC_MAX_SEGS];
-      int   f_code_size;
-      bc_label_group *f_label;
-      arg_list *f_params;
-      arg_list *f_autos;
-    } bc_function;
-
-/* Code addresses. */
-typedef struct {
-      int pc_func;
-      int pc_addr;
-    } program_counter;
-
-
-/* Variables are "pushable" (auto) and thus we need a stack mechanism.
-   This is built into the variable record. */
-
-typedef struct bc_var
-    {
-      bc_num v_value;
-      struct bc_var *v_next;
-    }  bc_var;
-
-
-/* bc arrays can also be "auto" variables and thus need the same
-   kind of stacking mechanisms. */
-
-typedef struct bc_array_node
-    {
-      union
-	{
-	  bc_num n_num [NODE_SIZE];
-	  struct bc_array_node *n_down [NODE_SIZE];
-	} n_items;
-    } bc_array_node;
-
-typedef struct bc_array
-    {
-      bc_array_node *a_tree;
-      short a_depth;
-    } bc_array;
-
-typedef struct bc_var_array
-    {
-      bc_array *a_value;
-      char      a_param;
-      struct bc_var_array *a_next;
-    } bc_var_array;
-
-
-/* For the stacks, execution and function, we need records to allow
-   for arbitrary size. */
-
-typedef struct estack_rec {
-	bc_num s_num;
-	struct estack_rec *s_next;
-} estack_rec;
-
-typedef struct fstack_rec {
-	int  s_val;
-	struct fstack_rec *s_next;
-} fstack_rec;
-
-
-/* The following are for the name tree. */
-
-typedef struct id_rec {
-	char  *id;      /* The program name. */
-			/* A name == 0 => nothing assigned yet. */
-	int   a_name;   /* The array variable name (number). */
-	int   f_name;   /* The function name (number).  */
-	int   v_name;   /* The variable name (number).  */
-        short balance;  /* For the balanced tree. */
-	struct id_rec *left, *right; /* Tree pointers. */
-} id_rec;
diff --git a/gnu/usr.bin/bc/config.h b/gnu/usr.bin/bc/config.h
index a9bd0be5f5ea..abdc7024855e 100644
--- a/gnu/usr.bin/bc/config.h
+++ b/gnu/usr.bin/bc/config.h
@@ -2,3 +2,4 @@
 #ifndef __STDC__
 #define VARARGS
 #endif
+#define YYTEXT_POINTER 1
diff --git a/gnu/usr.bin/bc/const.h b/gnu/usr.bin/bc/const.h
deleted file mode 100644
index 1b55adc31d4d..000000000000
--- a/gnu/usr.bin/bc/const.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/* const.h: Constants for bc. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-
-/* Define INT_MAX and LONG_MAX if not defined.  Assuming 32 bits... */
-
-#ifdef NO_LIMITS
-#define INT_MAX 0x7FFFFFFF
-#define LONG_MAX 0x7FFFFFFF
-#endif
-
-
-/* Define constants in some reasonable size.  The next 4 constants are
-   POSIX constants. */
-#if !defined(_POSIX_SOURCE)
-#define BC_BASE_MAX   INT_MAX
-#define BC_SCALE_MAX  INT_MAX
-#define BC_STRING_MAX INT_MAX
-
-/* Definitions for arrays. */
-
-#define BC_DIM_MAX    65535       /* this should be NODE_SIZE^NODE_DEPTH-1 */
-#endif
-
-#define   NODE_SIZE        16     /* Must be a power of 2. */
-#define   NODE_MASK       0xf     /* Must be NODE_SIZE-1. */
-#define   NODE_SHIFT        4     /* Number of 1 bits in NODE_MASK. */
-#define   NODE_DEPTH        4
-
-
-/* Other BC limits defined but not part of POSIX. */
-
-#define BC_LABEL_GROUP 64
-#define BC_LABEL_LOG    6
-#define BC_MAX_SEGS    16    /* Code segments. */
-#define BC_SEG_SIZE  1024
-#define BC_SEG_LOG     10
-
-/* Maximum number of variables, arrays and functions and the
-   allocation increment for the dynamic arrays. */
-
-#define MAX_STORE   32767
-#define STORE_INCR     32
-
-/* Other interesting constants. */
-
-#define FALSE 0
-#define TRUE  1
-
-/* for use with lookup (). */
-#define SIMPLE   0
-#define ARRAY    1
-#define FUNCT    2
-#define FUNCTDEF 3
-
-#define EXTERN extern
-#ifdef __STDC__
-#define CONST const
-#define VOID  void
-#else
-#define CONST
-#define VOID
-#endif
-
-/* Include the version definition. */
-#include "version.h"
diff --git a/gnu/usr.bin/bc/execute.c b/gnu/usr.bin/bc/execute.c
deleted file mode 100644
index 1a895068602d..000000000000
--- a/gnu/usr.bin/bc/execute.c
+++ /dev/null
@@ -1,785 +0,0 @@
-/* execute.c - run a bc program. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-#include "bcdefs.h"
-#include <signal.h>
-#include "global.h"
-#include "proto.h"
-
-
-/* The SIGINT interrupt handling routine. */
-
-int had_sigint;
-
-void
-stop_execution (sig)
-     int sig;
-{
-  had_sigint = TRUE;
-  printf ("\n");
-  rt_error ("interrupted execution");
-}
-
-
-/* Get the current byte and advance the PC counter. */
-
-unsigned char
-byte (pc)
-     program_counter *pc;
-{
-  int seg, offset;
-
-  seg = pc->pc_addr >> BC_SEG_LOG;
-  offset = pc->pc_addr++ % BC_SEG_SIZE;
-  return (functions[pc->pc_func].f_body[seg][offset]);
-}
-
-
-/* The routine that actually runs the machine. */
-
-void
-execute ()
-{
-  int label_num, l_gp, l_off;
-  bc_label_group *gp;
-
-  char inst, ch;
-  int  new_func;
-  int  var_name;
-
-  int const_base;
-
-  bc_num temp_num;
-  arg_list *auto_list;
-
-  /* Initialize this run... */
-  pc.pc_func = 0;
-  pc.pc_addr = 0;
-  runtime_error = FALSE;
-  init_num (&temp_num);
-
-  /* Set up the interrupt mechanism for an interactive session. */
-  if (interactive)
-    {
-      signal (SIGINT, stop_execution);
-      had_sigint = FALSE;
-    }
-
-  while (pc.pc_addr < functions[pc.pc_func].f_code_size && !runtime_error)
-    {
-      inst = byte(&pc);
-
-#if DEBUG > 3
-      { /* Print out address and the stack before each instruction.*/
-	int depth; estack_rec *temp = ex_stack;
-
-	printf ("func=%d addr=%d inst=%c\n",pc.pc_func, pc.pc_addr, inst);
-	if (temp == NULL) printf ("empty stack.\n", inst);
-	else
-	  {
-	    depth = 1;
-	    while (temp != NULL)
-	      {
-		printf ("   %d = ", depth);
-		out_num (temp->s_num, 10, out_char);
-		depth++;
-		temp = temp->s_next;
-	      }
-	  }
-      }
-#endif
-
-    switch ( inst )
-      {
-
-      case 'A' : /* increment array variable (Add one). */
-	var_name = byte(&pc);
-	if ((var_name & 0x80) != 0)
-	  var_name = ((var_name << 8) & 0x7f) + byte(&pc);
-	incr_array (var_name);
-	break;
-
-      case 'B' : /* Branch to a label if TOS != 0. Remove value on TOS. */
-      case 'Z' : /* Branch to a label if TOS == 0. Remove value on TOS. */
-	c_code = !is_zero (ex_stack->s_num);
-	pop ();
-      case 'J' : /* Jump to a label. */
-	label_num = byte(&pc);  /* Low order bits first. */
-	label_num += byte(&pc) << 8;
-	if (inst == 'J' || (inst == 'B' && c_code)
-	    || (inst == 'Z' && !c_code)) {
-	  gp = functions[pc.pc_func].f_label;
-	  l_gp  = label_num >> BC_LABEL_LOG;
-	  l_off = label_num % BC_LABEL_GROUP;
-	  while (l_gp-- > 0) gp = gp->l_next;
-	  pc.pc_addr = gp->l_adrs[l_off];
-	}
-	break;
-
-      case 'C' : /* Call a function. */
-	/* Get the function number. */
-	new_func = byte(&pc);
-	if ((new_func & 0x80) != 0)
-	  new_func = ((new_func << 8) & 0x7f) + byte(&pc);
-
-	/* Check to make sure it is defined. */
-	if (!functions[new_func].f_defined)
-	  {
-	    rt_error ("Function %s not defined.", f_names[new_func]);
-	    break;
-	  }
-
-	/* Check and push parameters. */
-	process_params (&pc, new_func);
-
-	/* Push auto variables. */
-	for (auto_list = functions[new_func].f_autos;
-	     auto_list != NULL;
-	     auto_list = auto_list->next)
-	  auto_var (auto_list->av_name);
-
-	/* Push pc and ibase. */
-	fpush (pc.pc_func);
-	fpush (pc.pc_addr);
-	fpush (i_base);
-
-	/* Reset pc to start of function. */
-	pc.pc_func = new_func;
-	pc.pc_addr = 0;
-	break;
-
-      case 'D' : /* Duplicate top of stack */
-	push_copy (ex_stack->s_num);
-	break;
-
-      case 'K' : /* Push a constant */
-	/* Get the input base and convert it to a bc number. */
-	if (pc.pc_func == 0)
-	  const_base = i_base;
-	else
-	  const_base = fn_stack->s_val;
-	if (const_base == 10)
-	  push_b10_const (&pc);
-	else
-	  push_constant (prog_char, const_base);
-	break;
-
-      case 'L' : /* load array variable */
-	var_name = byte(&pc);
-	if ((var_name & 0x80) != 0)
-	  var_name = ((var_name << 8) & 0x7f) + byte(&pc);
-	load_array (var_name);
-	break;
-
-      case 'M' : /* decrement array variable (Minus!) */
-	var_name = byte(&pc);
-	if ((var_name & 0x80) != 0)
-	  var_name = ((var_name << 8) & 0x7f) + byte(&pc);
-	decr_array (var_name);
-	break;
-
-      case 'O' : /* Write a string to the output with processing. */
-	while ((ch = byte(&pc)) != '"')
-	  if (ch != '\\')
-	    out_char (ch);
-	  else
-	    {
-	      ch = byte(&pc);
-	      if (ch == '"') break;
-	      switch (ch)
-		{
-		case 'a':  out_char (007); break;
-		case 'b':  out_char ('\b'); break;
-		case 'f':  out_char ('\f'); break;
-		case 'n':  out_char ('\n'); break;
-		case 'q':  out_char ('"'); break;
-		case 'r':  out_char ('\r'); break;
-		case 't':  out_char ('\t'); break;
-		case '\\': out_char ('\\'); break;
-		default:  break;
-		}
-	    }
-	if (interactive) fflush (stdout);
-	break;
-
-      case 'R' : /* Return from function */
-	if (pc.pc_func != 0)
-	  {
-	    /* "Pop" autos and parameters. */
-	    pop_vars(functions[pc.pc_func].f_autos);
-	    pop_vars(functions[pc.pc_func].f_params);
-	    /* reset the pc. */
-	    fpop ();
-	    pc.pc_addr = fpop ();
-	    pc.pc_func = fpop ();
-	  }
-	else
-	  rt_error ("Return from main program.");
-	break;
-
-      case 'S' : /* store array variable */
-	var_name = byte(&pc);
-	if ((var_name & 0x80) != 0)
-	  var_name = ((var_name << 8) & 0x7f) + byte(&pc);
-	store_array (var_name);
-	break;
-
-      case 'T' : /* Test tos for zero */
-	c_code = is_zero (ex_stack->s_num);
-	assign (c_code);
-	break;
-
-      case 'W' : /* Write the value on the top of the stack. */
-      case 'P' : /* Write the value on the top of the stack.  No newline. */
-	out_num (ex_stack->s_num, o_base, out_char);
-	if (inst == 'W') out_char ('\n');
-	store_var (3);  /* Special variable "last". */
-	if (interactive) fflush (stdout);
-	break;
-
-      case 'c' : /* Call special function. */
-	new_func = byte(&pc);
-
-      switch (new_func)
-	{
-	case 'L':  /* Length function. */
-	  /* For the number 0.xxxx,  0 is not significant. */
-	  if (ex_stack->s_num->n_len == 1 &&
-	      ex_stack->s_num->n_scale != 0 &&
-	      ex_stack->s_num->n_value[0] == 0 )
-	    int2num (&ex_stack->s_num, ex_stack->s_num->n_scale);
-	  else
-	    int2num (&ex_stack->s_num, ex_stack->s_num->n_len
-		     + ex_stack->s_num->n_scale);
-	  break;
-
-	case 'S':  /* Scale function. */
-	  int2num (&ex_stack->s_num, ex_stack->s_num->n_scale);
-	  break;
-
-	case 'R':  /* Square Root function. */
-	  if (!bc_sqrt (&ex_stack->s_num, scale))
-	    rt_error ("Square root of a negative number");
-	  break;
-
-	case 'I': /* Read function. */
-	  push_constant (input_char, i_base);
-	  break;
-	}
-	break;
-
-      case 'd' : /* Decrement number */
-	var_name = byte(&pc);
-	if ((var_name & 0x80) != 0)
-	  var_name = ((var_name << 8) & 0x7f) + byte(&pc);
-	decr_var (var_name);
-	break;
-
-      case 'h' : /* Halt the machine. */
-	exit (0);
-
-      case 'i' : /* increment number */
-	var_name = byte(&pc);
-	if ((var_name & 0x80) != 0)
-	  var_name = ((var_name << 8) & 0x7f) + byte(&pc);
-	incr_var (var_name);
-	break;
-
-      case 'l' : /* load variable */
-	var_name = byte(&pc);
-	if ((var_name & 0x80) != 0)
-	  var_name = ((var_name << 8) & 0x7f) + byte(&pc);
-	load_var (var_name);
-	break;
-
-      case 'n' : /* Negate top of stack. */
-	bc_sub (_zero_, ex_stack->s_num, &ex_stack->s_num);
-	break;
-
-      case 'p' : /* Pop the execution stack. */
-	pop ();
-	break;
-
-      case 's' : /* store variable */
-	var_name = byte(&pc);
-	if ((var_name & 0x80) != 0)
-	  var_name = ((var_name << 8) & 0x7f) + byte(&pc);
-	store_var (var_name);
-	break;
-
-      case 'w' : /* Write a string to the output. */
-	while ((ch = byte(&pc)) != '"') out_char (ch);
-	if (interactive) fflush (stdout);
-	break;
-
-      case 'x' : /* Exchange Top of Stack with the one under the tos. */
-	if (check_stack(2)) {
-	  bc_num temp = ex_stack->s_num;
-	  ex_stack->s_num = ex_stack->s_next->s_num;
-	  ex_stack->s_next->s_num = temp;
-	}
-	break;
-
-      case '0' : /* Load Constant 0. */
-	push_copy (_zero_);
-	break;
-
-      case '1' : /* Load Constant 0. */
-	push_copy (_one_);
-	break;
-
-      case '!' : /* Negate the boolean value on top of the stack. */
-	c_code = is_zero (ex_stack->s_num);
-	assign (c_code);
-	break;
-
-      case '&' : /* compare greater than */
-	if (check_stack(2))
-	  {
-	    c_code = !is_zero (ex_stack->s_next->s_num)
-	      && !is_zero (ex_stack->s_num);
-	    pop ();
-	    assign (c_code);
-	  }
-	break;
-
-      case '|' : /* compare greater than */
-	if (check_stack(2))
-	  {
-	    c_code = !is_zero (ex_stack->s_next->s_num)
-	      || !is_zero (ex_stack->s_num);
-	    pop ();
-	    assign (c_code);
-	  }
-	break;
-
-      case '+' : /* add */
-	if (check_stack(2))
-	  {
-	    bc_add (ex_stack->s_next->s_num, ex_stack->s_num, &temp_num);
-	    pop();
-	    pop();
-	    push_num (temp_num);
-	    init_num (&temp_num);
-	  }
-	break;
-
-      case '-' : /* subtract */
-	if (check_stack(2))
-	  {
-	    bc_sub (ex_stack->s_next->s_num, ex_stack->s_num, &temp_num);
-	    pop();
-	    pop();
-	    push_num (temp_num);
-	    init_num (&temp_num);
-	  }
-	break;
-
-      case '*' : /* multiply */
-	if (check_stack(2))
-	  {
-	    bc_multiply (ex_stack->s_next->s_num, ex_stack->s_num,
-			 &temp_num, scale);
-	    pop();
-	    pop();
-	    push_num (temp_num);
-	    init_num (&temp_num);
-	  }
-	break;
-
-      case '/' : /* divide */
-	if (check_stack(2))
-	  {
-	    if (bc_divide (ex_stack->s_next->s_num,
-			   ex_stack->s_num, &temp_num, scale) == 0)
-	      {
-		pop();
-		pop();
-		push_num (temp_num);
-		init_num (&temp_num);
-	      }
-	    else
-	      rt_error ("Divide by zero");
-	  }
-	break;
-
-      case '%' : /* remainder */
-	if (check_stack(2))
-	  {
-	    if (is_zero (ex_stack->s_num))
-	      rt_error ("Modulo by zero");
-	    else
-	      {
-		bc_modulo (ex_stack->s_next->s_num,
-			   ex_stack->s_num, &temp_num, scale);
-		pop();
-		pop();
-		push_num (temp_num);
-		init_num (&temp_num);
-	      }
-	  }
-	break;
-
-      case '^' : /* raise */
-	if (check_stack(2))
-	  {
-	    bc_raise (ex_stack->s_next->s_num,
-		      ex_stack->s_num, &temp_num, scale);
-	    if (is_zero (ex_stack->s_next->s_num) && is_neg (ex_stack->s_num))
-	      rt_error ("divide by zero");
-	    pop();
-	    pop();
-	    push_num (temp_num);
-	    init_num (&temp_num);
-	  }
-	break;
-
-      case '=' : /* compare equal */
-	if (check_stack(2))
-	  {
-	    c_code = bc_compare (ex_stack->s_next->s_num,
-				 ex_stack->s_num) == 0;
-	    pop ();
-	    assign (c_code);
-	  }
-	break;
-
-      case '#' : /* compare not equal */
-	if (check_stack(2))
-	  {
-	    c_code = bc_compare (ex_stack->s_next->s_num,
-				 ex_stack->s_num) != 0;
-	    pop ();
-	    assign (c_code);
-	  }
-	break;
-
-      case '<' : /* compare less than */
-	if (check_stack(2))
-	  {
-	    c_code = bc_compare (ex_stack->s_next->s_num,
-				 ex_stack->s_num) == -1;
-	    pop ();
-	    assign (c_code);
-	  }
-	break;
-
-      case '{' : /* compare less than or equal */
-	if (check_stack(2))
-	  {
-	    c_code = bc_compare (ex_stack->s_next->s_num,
-				 ex_stack->s_num) <= 0;
-	    pop ();
-	    assign (c_code);
-	  }
-	break;
-
-      case '>' : /* compare greater than */
-	if (check_stack(2))
-	  {
-	    c_code = bc_compare (ex_stack->s_next->s_num,
-				 ex_stack->s_num) == 1;
-	    pop ();
-	    assign (c_code);
-	  }
-	break;
-
-      case '}' : /* compare greater than or equal */
-	if (check_stack(2))
-	  {
-	    c_code = bc_compare (ex_stack->s_next->s_num,
-				 ex_stack->s_num) >= 0;
-	    pop ();
-	    assign (c_code);
-	  }
-	break;
-
-	default  : /* error! */
-	  rt_error ("bad instruction: inst=%c", inst);
-      }
-    }
-
-  /* Clean up the function stack and pop all autos/parameters. */
-  while (pc.pc_func != 0)
-    {
-      pop_vars(functions[pc.pc_func].f_autos);
-      pop_vars(functions[pc.pc_func].f_params);
-      fpop ();
-      pc.pc_addr = fpop ();
-      pc.pc_func = fpop ();
-    }
-
-  /* Clean up the execution stack. */
-  while (ex_stack != NULL) pop();
-
-  /* Clean up the interrupt stuff. */
-  if (interactive)
-    {
-      signal (SIGINT, use_quit);
-      if (had_sigint)
-	printf ("Interruption completed.\n");
-    }
-}
-
-
-/* Prog_char gets another byte from the program.  It is used for
-   conversion of text constants in the code to numbers. */
-
-char
-prog_char ()
-{
-  return byte(&pc);
-}
-
-
-/* Read a character from the standard input.  This function is used
-   by the "read" function. */
-
-char
-input_char ()
-{
-  char in_ch;
-
-  /* Get a character from the standard input for the read function. */
-  in_ch = getchar();
-
-  /* Check for a \ quoted newline. */
-  if (in_ch == '\\')
-    {
-      in_ch = getchar();
-      if (in_ch == '\n')
-	in_ch = getchar();
-    }
-
-  /* Classify and preprocess the input character. */
-  if (isdigit(in_ch))
-    return (in_ch - '0');
-  if (in_ch >= 'A' && in_ch <= 'F')
-    return (in_ch + 10 - 'A');
-  if (in_ch >= 'a' && in_ch <= 'f')
-    return (in_ch + 10 - 'a');
-  if (in_ch == '.' || in_ch == '+' || in_ch == '-')
-    return (in_ch);
-  if (in_ch <= ' ')
-    return (' ');
-
-  return (':');
-}
-
-
-/* Push_constant converts a sequence of input characters as returned
-   by IN_CHAR into a number.  The number is pushed onto the execution
-   stack.  The number is converted as a number in base CONV_BASE. */
-
-void
-push_constant (in_char, conv_base)
-   char (*in_char)(VOID);
-   int conv_base;
-{
-  int digits;
-  bc_num build, temp, result, mult, divisor;
-  char  in_ch, first_ch;
-  char  negative;
-
-  /* Initialize all bc numbers */
-  init_num (&temp);
-  init_num (&result);
-  init_num (&mult);
-  build = copy_num (_zero_);
-  negative = FALSE;
-
-  /* The conversion base. */
-  int2num (&mult, conv_base);
-
-  /* Get things ready. */
-  in_ch = in_char();
-  while (in_ch == ' ')
-    in_ch = in_char();
-
-  if (in_ch == '+')
-    in_ch = in_char();
-  else
-    if (in_ch == '-')
-      {
-	negative = TRUE;
-	in_ch = in_char();
-      }
-
-  /* Check for the special case of a single digit. */
-  if (in_ch < 16)
-    {
-      first_ch = in_ch;
-      in_ch = in_char();
-      if (in_ch < 16 && first_ch >= conv_base)
-	first_ch = conv_base - 1;
-      int2num (&build, (int) first_ch);
-    }
-
-  /* Convert the integer part. */
-  while (in_ch < 16)
-    {
-      if (in_ch < 16 && in_ch >= conv_base) in_ch = conv_base-1;
-      bc_multiply (build, mult, &result, 0);
-      int2num (&temp, (int) in_ch);
-      bc_add (result, temp, &build);
-      in_ch = in_char();
-    }
-  if (in_ch == '.')
-    {
-      in_ch = in_char();
-      if (in_ch >= conv_base) in_ch = conv_base-1;
-      free_num (&result);
-      free_num (&temp);
-      divisor = copy_num (_one_);
-      result = copy_num (_zero_);
-      digits = 0;
-      while (in_ch < 16)
-	{
-	  bc_multiply (result, mult, &result, 0);
-	  int2num (&temp, (int) in_ch);
-	  bc_add (result, temp, &result);
-	  bc_multiply (divisor, mult, &divisor, 0);
-	  digits++;
-	  in_ch = in_char();
-	  if (in_ch < 16 && in_ch >= conv_base) in_ch = conv_base-1;
-	}
-      bc_divide (result, divisor, &result, digits);
-      bc_add (build, result, &build);
-    }
-
-  /* Final work.  */
-  if (negative)
-    bc_sub (_zero_, build, &build);
-
-  push_num (build);
-  free_num (&temp);
-  free_num (&result);
-  free_num (&mult);
-}
-
-
-/* When converting base 10 constants from the program, we use this
-   more efficient way to convert them to numbers.  PC tells where
-   the constant starts and is expected to be advanced to after
-   the constant. */
-
-void
-push_b10_const (pc)
-     program_counter *pc;
-{
-  bc_num build;
-  program_counter look_pc;
-  int kdigits, kscale;
-  char inchar;
-  char *ptr;
-
-  /* Count the digits and get things ready. */
-  look_pc = *pc;
-  kdigits = 0;
-  kscale  = 0;
-  inchar = byte (&look_pc);
-  while (inchar != '.' && inchar != ':')
-    {
-      kdigits++;
-      inchar = byte(&look_pc);
-    }
-  if (inchar == '.' )
-    {
-      inchar = byte(&look_pc);
-      while (inchar != ':')
-	{
-	  kscale++;
-	  inchar = byte(&look_pc);
-	}
-    }
-
-  /* Get the first character again and move the pc. */
-  inchar = byte(pc);
-
-  /* Secial cases of 0, 1, and A-F single inputs. */
-  if (kdigits == 1 && kscale == 0)
-    {
-      if (inchar == 0)
-	{
-	  push_copy (_zero_);
-	  inchar = byte(pc);
-	  return;
-	}
-      if (inchar == 1) {
-      push_copy (_one_);
-      inchar = byte(pc);
-      return;
-    }
-    if (inchar > 9)
-      {
-	init_num (&build);
-	int2num (&build, inchar);
-	push_num (build);
-	inchar = byte(pc);
-	return;
-      }
-    }
-
-  /* Build the new number. */
-  if (kdigits == 0)
-    {
-      build = new_num (1,kscale);
-      ptr = build->n_value;
-      *ptr++ = 0;
-    }
-  else
-    {
-      build = new_num (kdigits,kscale);
-      ptr = build->n_value;
-    }
-
-  while (inchar != ':')
-    {
-      if (inchar != '.')
-	if (inchar > 9)
-	  *ptr++ = 9;
-	else
-	  *ptr++ = inchar;
-      inchar = byte(pc);
-    }
-  push_num (build);
-}
-
-
-/* Put the correct value on the stack for C_CODE.  Frees TOS num. */
-
-void
-assign (c_code)
-     char c_code;
-{
-  free_num (&ex_stack->s_num);
-  if (c_code)
-    ex_stack->s_num = copy_num (_one_);
-  else
-    ex_stack->s_num = copy_num (_zero_);
-}
diff --git a/gnu/usr.bin/bc/global.c b/gnu/usr.bin/bc/global.c
deleted file mode 100644
index fc44ff61171f..000000000000
--- a/gnu/usr.bin/bc/global.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/* global.c:  This defines the global variables. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-#include "bcdefs.h"
-
-/* Since we want to define them here, we use the following define. */
-#undef EXTERN
-#define EXTERN
-
-/* Define all the global variables for bc. */
-#include "global.h"
-
-#ifndef BC_MATH_FILE
-CONST char libmath[] =
-#include "math.h"
-;
-#endif
diff --git a/gnu/usr.bin/bc/global.h b/gnu/usr.bin/bc/global.h
deleted file mode 100644
index 2b339a8c17c7..000000000000
--- a/gnu/usr.bin/bc/global.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/* global.h:  The global variables for bc.  */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-
-/* The current break level's label. */
-EXTERN int break_label;
-
-/* The current if statement's else label or label after else. */
-EXTERN int if_label;
-
-/* The current for statement label for continuing the loop. */
-EXTERN int continue_label;
-
-/* Next available label number. */
-EXTERN int next_label;
-
-/* Byte code character storage.  Used in many places for generation of code. */
-EXTERN char genstr[80];
-
-/* Count of characters printed to the output in compile_only mode. */
-EXTERN int out_count;
-
-/* Have we generated any code since the last initialization of the code
-   generator.  */
-EXTERN char did_gen;
-
-/* Is this run an interactive execution.  (Is stdin a terminal?) */
-EXTERN char interactive;
-
-/* Just generate the byte code.  -c flag. */
-EXTERN char compile_only;
-
-/* Load the standard math functions.  -l flag. */
-EXTERN char use_math;
-
-/* Give a warning on use of any non-standard feature (non-POSIX).  -w flag. */
-EXTERN char warn_not_std;
-
-/* Accept POSIX bc only!  -s flag. */
-EXTERN char std_only;
-
-/* global variables for the bc machine. All will be dynamic in size.*/
-/* Function storage. main is (0) and functions (1-f_count) */
-
-EXTERN bc_function *functions;
-EXTERN char **f_names;
-EXTERN int  f_count;
-
-/* Variable stoarge and reverse names. */
-
-EXTERN bc_var **variables;
-EXTERN char **v_names;
-EXTERN int  v_count;
-
-/* Array Variable storage and reverse names. */
-
-EXTERN bc_var_array **arrays;
-EXTERN char **a_names;
-EXTERN int  a_count;
-
-/* Execution stack. */
-EXTERN estack_rec *ex_stack;
-
-/* Function return stack. */
-EXTERN fstack_rec *fn_stack;
-
-/* Other "storage". */
-EXTERN int i_base;
-EXTERN int o_base;
-EXTERN int scale;
-EXTERN char c_code;
-EXTERN int out_col;
-EXTERN char runtime_error;
-EXTERN program_counter pc;
-
-/* Input Line numbers and other error information. */
-EXTERN int line_no;
-EXTERN int had_error;
-
-/* For larger identifiers, a tree, and how many "storage" locations
-   have been allocated. */
-
-EXTERN int next_array;
-EXTERN int next_func;
-EXTERN int next_var;
-
-EXTERN id_rec *name_tree;
-
-/* For error message production */
-EXTERN char **g_argv;
-EXTERN int    g_argc;
-EXTERN char   is_std_in;
-
-/* defined in number.c */
-extern bc_num _zero_;
-extern bc_num _one_;
-
-/* For use with getopt.  Do not declare them here.*/
-extern int optind;
-
diff --git a/gnu/usr.bin/bc/load.c b/gnu/usr.bin/bc/load.c
deleted file mode 100644
index 53466e58c0b6..000000000000
--- a/gnu/usr.bin/bc/load.c
+++ /dev/null
@@ -1,333 +0,0 @@
-/* load.c:  This code "loads" code into the code segments. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-#include "bcdefs.h"
-#include "global.h"
-#include "proto.h"
-
-/* Load variables. */
-
-program_counter load_adr;
-char load_str;
-char load_const;
-
-/* Initialize the load sequence. */
-void
-init_load ()
-{
-  clear_func(0);
-  load_adr.pc_func = 0;
-  load_adr.pc_addr = 0;
-  load_str = FALSE;
-  load_const = FALSE;
-}
-
-/* addbyte adds one BYTE to the current code segment. */
-void
-addbyte (byte)
-     char byte;
-{
-  int seg, offset, func;
-
-  /* If there was an error, don't continue. */
-  if (had_error) return;
-
-  /* Calculate the segment and offset. */
-  seg = load_adr.pc_addr >> BC_SEG_LOG;
-  offset = load_adr.pc_addr++ % BC_SEG_SIZE;
-  func = load_adr.pc_func;
-
-  if (seg >= BC_MAX_SEGS)
-    {
-      yyerror ("Function too big.");
-      return;
-    }
-
-  if (functions[func].f_body[seg] == NULL)
-    functions[func].f_body[seg] = (char *) bc_malloc (BC_SEG_SIZE);
-
-  /* Store the byte. */
-  functions[func].f_body[seg][offset] = byte;
-  functions[func].f_code_size++;
-}
-
-
-/* Define a label LAB to be the current program counter. */
-
-void
-def_label (lab)
-     long lab;
-{
-  bc_label_group *temp;
-  int group, offset, func;
-
-  /* Get things ready. */
-  group = lab >> BC_LABEL_LOG;
-  offset = lab % BC_LABEL_GROUP;
-  func = load_adr.pc_func;
-
-  /* Make sure there is at least one label group. */
-  if (functions[func].f_label == NULL)
-    {
-      functions[func].f_label =
-	(bc_label_group *) bc_malloc (sizeof(bc_label_group));
-      functions[func].f_label->l_next = NULL;
-    }
-
-  /* Add the label group. */
-  temp = functions[func].f_label;
-  while (group > 0)
-    {
-      if (temp->l_next == NULL)
-	{
-	  temp->l_next = (bc_label_group *) bc_malloc (sizeof(bc_label_group));
-	  temp->l_next->l_next = NULL;
-	}
-      temp = temp->l_next;
-      group --;
-    }
-
-  /* Define it! */
-  temp->l_adrs [offset] = load_adr.pc_addr;
-}
-
-/* Several instructions have integers in the code.  They
-   are all known to be legal longs.  So, no error code
-   is added.  STR is the pointer to the load string and
-   must be moved to the last non-digit character. */
-
-long
-long_val (str)
-     char **str;
-{ int  val = 0;
-  char neg = FALSE;
-
-  if (**str == '-')
-    {
-      neg = TRUE;
-      (*str)++;
-    }
-  while (isdigit(**str))
-    val = val*10 + *(*str)++ - '0';
-
-  if (neg)
-    return -val;
-  else
-    return val;
-}
-
-
-/* load_code loads the CODE into the machine. */
-
-void
-load_code (code)
-     char *code;
-{
-  char *str;
-  long  ap_name;	/* auto or parameter name. */
-  long  label_no;
-  long  vaf_name;	/* variable, array or function number. */
-  long  func;
-  program_counter save_adr;
-
-  /* Initialize. */
-  str = code;
-
-  /* Scan the code. */
-  while (*str != 0)
-    {
-      /* If there was an error, don't continue. */
-      if (had_error) return;
-
-      if (load_str)
-	{
-	  if (*str == '"') load_str = FALSE;
-	  addbyte (*str++);
-	}
-      else
-	if (load_const)
-	  {
-	    if (*str == '\n')
-	      str++;
-	    else
-	      {
-		if (*str == ':')
-		  {
-		    load_const = FALSE;
-		    addbyte (*str++);
-		  }
-		else
-		  if (*str == '.')
-		    addbyte (*str++);
-		  else
-		    if (*str >= 'A')
-		      addbyte (*str++ + 10 - 'A');
-		    else
-		      addbyte (*str++ - '0');
-	      }
-	  }
-	else
-	  {
-	    switch (*str)
-	      {
-
-	      case '"':	/* Starts a string. */
-		load_str = TRUE;
-		break;
-
-	      case 'N': /* A label */
-		str++;
-		label_no = long_val (&str);
-		def_label (label_no);
-		break;
-
-	      case 'B':  /* Branch to label. */
-	      case 'J':  /* Jump to label. */
-	      case 'Z':  /* Branch Zero to label. */
-		addbyte(*str++);
-		label_no = long_val (&str);
-		if (label_no > 65535L)
-		  {  /* Better message? */
-		    fprintf (stderr,"Program too big.\n");
-		    exit(1);
-		  }
-		addbyte ( (char) label_no & 0xFF);
-		addbyte ( (char) label_no >> 8);
-		break;
-
-	      case 'F':  /* A function, get the name and initialize it. */
-		str++;
-		func = long_val (&str);
-		clear_func (func);
-#if DEBUG > 2
-		printf ("Loading function number %d\n", func);
-#endif
-		/* get the parameters */
-		while (*str++ != '.')
-		  {
-		    if (*str == '.')
-		      {
-			str++;
-			break;
-		      }
-		    ap_name = long_val (&str);
-#if DEBUG > 2
-		    printf ("parameter number %d\n", ap_name);
-#endif
-		    functions[(int)func].f_params =
-		      nextarg (functions[(int)func].f_params, ap_name);
-		  }
-
-		/* get the auto vars */
-		while (*str != '[')
-		  {
-		    if (*str == ',') str++;
-		    ap_name = long_val (&str);
-#if DEBUG > 2
-		    printf ("auto number %d\n", ap_name);
-#endif
-		    functions[(int)func].f_autos =
-		      nextarg (functions[(int)func].f_autos, ap_name);
-		  }
-		save_adr = load_adr;
-		load_adr.pc_func = func;
-		load_adr.pc_addr = 0;
-		break;
-
-	      case ']':  /* A function end */
-		functions[load_adr.pc_func].f_defined = TRUE;
-		load_adr = save_adr;
-		break;
-
-	      case 'C':  /* Call a function. */
-		addbyte (*str++);
-		func = long_val (&str);
-		if (func < 128)
-		  addbyte ( (char) func);
-		else
-		  {
-		    addbyte (((func >> 8) & 0xff) | 0x80);
-		    addbyte (func & 0xff);
-		  }
-		if (*str == ',') str++;
-		while (*str != ':')
-		  addbyte (*str++);
-		addbyte (':');
-		break;
-
-	      case 'c':  /* Call a special function. */
-		addbyte (*str++);
-		addbyte (*str);
-		break;
-
-	      case 'K':  /* A constant.... may have an "F" in it. */
-		addbyte (*str);
-		load_const = TRUE;
-		break;
-
-	      case 'd':  /* Decrement. */
-	      case 'i':  /* Increment. */
-	      case 'l':  /* Load. */
-	      case 's':  /* Store. */
-	      case 'A':  /* Array Increment */
-	      case 'M':  /* Array Decrement */
-	      case 'L':  /* Array Load */
-	      case 'S':  /* Array Store */
-		addbyte (*str++);
-		vaf_name = long_val (&str);
-		if (vaf_name < 128)
-		  addbyte (vaf_name);
-		else
-		  {
-		    addbyte (((vaf_name >> 8) & 0xff) | 0x80);
-		    addbyte (vaf_name & 0xff);
-		  }
-		break;
-
-	      case '@':  /* A command! */
-		switch (*(++str))
-		  {
-		  case 'i':
-		    init_load ();
-		    break;
-		  case 'r':
-		    execute ();
-		    break;
-		  }
-		break;
-
-	      case '\n':  /* Ignore the newlines */
-		break;
-
-	      default:   /* Anything else */
-		addbyte (*str);
-	      }
-	    str++;
-	  }
-    }
-}
diff --git a/gnu/usr.bin/bc/main.c b/gnu/usr.bin/bc/main.c
deleted file mode 100644
index 57bcd8ce5a23..000000000000
--- a/gnu/usr.bin/bc/main.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/* main.c: The main program for bc.  */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-#include "bcdefs.h"
-#include <signal.h>
-#include "global.h"
-#include "proto.h"
-
-/* Variables for processing multiple files. */
-char   first_file;
-extern FILE *yyin;
-
-
-/* The main program for bc. */
-int
-main (argc, argv)
-     int argc;
-     char *argv[];
-{
-  int  ch;
-
-  /* Initialize many variables. */
-  compile_only = FALSE;
-  use_math = FALSE;
-  warn_not_std = FALSE;
-  std_only = FALSE;
-  if (isatty(0) && isatty(1))
-    interactive = TRUE;
-  else
-    interactive = FALSE;
-
-  /* Parse the command line */
-  ch = getopt (argc, argv, "lcisvw");
-  while (ch != EOF)
-    {
-      switch (ch)
-	{
-	case 'c':  /* compile only */
-	  compile_only = TRUE;
-	  break;
-	case 'l':  /* math lib */
-	  use_math = TRUE;
-	  break;
-	case 'i':  /* force interactive */
-	  interactive = TRUE;
-	  break;
-	case 'w':  /* Non standard features give warnings. */
-	  warn_not_std = TRUE;
-	  break;
-	case 's':  /* Non standard features give errors. */
-	  std_only = TRUE;
-	  break;
-	case 'v':  /* Print the version. */
-	  printf ("%s\n", BC_VERSION);
-	  break;
-	}
-      ch = getopt (argc, argv, "lcisvw");
-    }
-
-  /* Initialize the machine.  */
-  init_storage();
-  init_load();
-
-  /* Set up interrupts to print a message. */
-  if (interactive)
-    signal (SIGINT, use_quit);
-
-  /* Initialize the front end. */
-  init_tree();
-  init_gen ();
-  g_argv = argv;
-  g_argc = argc;
-  is_std_in = FALSE;
-  first_file = TRUE;
-  if (!open_new_file ())
-    exit (1);
-
-  /* Do the parse. */
-  yyparse ();
-
-  /* End the compile only output with a newline. */
-  if (compile_only)
-    printf ("\n");
-
-  exit (0);
-}
-
-
-/* This is the function that opens all the files.
-   It returns TRUE if the file was opened, otherwise
-   it returns FALSE. */
-
-int
-open_new_file ()
-{
-  FILE *new_file;
-
-  /* Set the line number. */
-  line_no = 1;
-
-  /* Check to see if we are done. */
-  if (is_std_in) return (FALSE);
-
-  /* Open the other files. */
-  if (use_math && first_file)
-    {
-#ifdef BC_MATH_FILE
-      /* Make the first file be the math library. */
-      new_file = fopen (BC_MATH_FILE, "r");
-      use_math = FALSE;
-      if (new_file != NULL)
-	{
-	  new_yy_file (new_file);
-	  return TRUE;
-	}
-      else
-	{
-	  fprintf (stderr, "Math Library unavailable.\n");
-	  exit (1);
-	}
-#else
-      /* Load the code from a precompiled version of the math libarary. */
-      extern char libmath[];
-      char tmp;
-      /* These MUST be in the order of first mention of each function.
-	 That is why "a" comes before "c" even though "a" is defined after
-	 after "c".  "a" is used in "s"! */
-      tmp = lookup ("e", FUNCT);
-      tmp = lookup ("l", FUNCT);
-      tmp = lookup ("s", FUNCT);
-      tmp = lookup ("a", FUNCT);
-      tmp = lookup ("c", FUNCT);
-      tmp = lookup ("j", FUNCT);
-      load_code (libmath);
-#endif
-    }
-
-  /* One of the argv values. */
-  while (optind < g_argc)
-    {
-      new_file = fopen (g_argv[optind], "r");
-      if (new_file != NULL)
-	{
-	  new_yy_file (new_file);
-	  optind++;
-	  return TRUE;
-	}
-      fprintf (stderr, "File %s is unavailable.\n", g_argv[optind++]);
-      exit (1);
-    }
-
-  /* If we fall through to here, we should return stdin. */
-  new_yy_file (stdin);
-  is_std_in = TRUE;
-  return TRUE;
-}
-
-
-/* Set yyin to the new file. */
-
-void
-new_yy_file (file)
-     FILE *file;
-{
-  if (!first_file) fclose (yyin);
-  yyin = file;
-  first_file = FALSE;
-}
-
-
-/* Message to use quit.  */
-
-void
-use_quit (sig)
-     int sig;
-{
-  printf ("\n(interrupt) use quit to exit.\n");
-  signal (SIGINT, use_quit);
-}
diff --git a/gnu/usr.bin/bc/math.h b/gnu/usr.bin/bc/math.h
deleted file mode 100644
index fb5b03b8f9ca..000000000000
--- a/gnu/usr.bin/bc/math.h
+++ /dev/null
@@ -1,40 +0,0 @@
-"@iK20:s2:p@r\
-@iF1,4.5,6,7,8,9,10,11,12,13[l4:0<Z1:1s10:pl4:ns4:pN1:l2:s13:\
-pK6:l13:+K.44:l4:*+s11:pl4:cS1+s2:pN2:l4:1>Z3:l8:1+s8:pl4:K2:\
-/s4:pl2:1+s2:pJ2:N3:l11:s2:p1l4:+s12:pl4:s5:p1s6:pK2:s9:pN5:1\
-B6:J4:N7:l9:i9:pJ5:N6:l5:l4:*s5:l6:l9:*s6:/s7:pl7:0=Z8:l8:0>Z9:\
-N10:l8:d8:Z11:l12:l12:*s12:pJ10:N11:N9:l13:s2:pl10:Z12:1l12:/\
-RN12:l12:1/RN8:l12:l7:+s12:pJ7:N4:0R]@r\
-@iF2,4.7,8,9,10,11,12,13[l4:0{Z1:1K10:l2:^-RN1:l2:s13:pK6:l2:\
-+s2:pK2:s8:p0s9:pN2:l4:K2:}Z3:l8:K2:*s8:pl4:cRs4:pJ2:N3:N4:l4:\
-K.5:{Z5:l8:K2:*s8:pl4:cRs4:pJ4:N5:l4:1-l4:1+/s11:s12:pl11:l11:\
-*s10:pK3:s9:pN7:1B8:J6:N9:l9:K2:+s9:pJ7:N8:l11:l10:*s11:l9:/s7:\
-pl7:0=Z10:l8:l12:*s12:pl13:s2:pl12:1/RN10:l12:l7:+s12:pJ9:N6:\
-0R]@r\
-@iF3,4.7,9,10,11,14,12,13[l2:s13:pK1.1:l13:*K2:+s2:p1C4,0:s12:\
-pl4:0<Z1:1s10:pl4:ns4:pN1:0s2:pl4:l12:/K2:+K4:/s11:pl4:K4:l11:\
-*l12:*-s4:pl11:K2:%Z2:l4:ns4:pN2:l13:K2:+s2:pl4:s7:s12:pl4:nl4:\
-*s14:pK3:s9:pN4:1B5:J3:N6:l9:K2:+s9:pJ4:N5:l7:l14:l9:l9:1-*/*\
-s7:pl7:0=Z7:l13:s2:pl10:Z8:l12:n1/RN8:l12:1/RN7:l12:l7:+s12:p\
-J6:N3:0R]@r\
-@iF5,4.12[l2:1+s2:pl4:1C4,0:K2:*+C3,0:s12:pl2:1-s2:pl12:1/R0R]\
-@r\
-@iF4,4.5,7,8,9,10,11,14,12,13[1s10:pl4:0<Z1:1ns10:pl4:ns4:pN1:\
-l4:1=Z2:l2:K25:{Z3:K.7853981633974483096156608:l10:/RN3:l2:K40\
-:{Z4:K.7853981633974483096156608458198757210492:l10:/RN4:l2:K\
-60:{Z5:K.785398163397448309615660845819875721049292349843776455243736\
-:l10:/RN5:N2:l4:K.2:=Z6:l2:K25:{Z7:K.1973955598498807583700497\
-:l10:/RN7:l2:K40:{Z8:K.1973955598498807583700497651947902934475\
-:l10:/RN8:l2:K60:{Z9:K.197395559849880758370049765194790293447585103787852101517688\
-:l10:/RN9:N6:l2:s13:pl4:K.2:>Z10:l13:K5:+s2:pK.2:C4,0:s5:pN10:\
-l13:K3:+s2:pN11:l4:K.2:>Z12:l8:1+s8:pl4:K.2:-1l4:K.2:*+/s4:pJ11:N12:\
-l4:s11:s12:pl4:nl4:*s14:pK3:s9:pN14:1B15:J13:N16:l9:K2:+s9:pJ14:N15:\
-l11:l14:*s11:l9:/s7:pl7:0=Z17:l13:s2:pl8:l5:*l12:+l10:/RN17:l12:\
-l7:+s12:pJ16:N13:0R]@r\
-@iF6,11,4.5,6,7,8,9,10,14,12,13[l2:s13:p0s2:pl11:1/s11:pl11:0\
-<Z1:l11:ns11:pl11:K2:%1=Z2:1s10:pN2:N1:1s8:pK2:s9:pN4:l9:l11:\
-{B5:J3:N6:l9:i9:pJ4:N5:l8:l9:*s8:pJ6:N3:K1.5:l13:*s2:pl4:l11:\
-^K2:l11:^/l8:/s8:p1s7:s12:pl4:nl4:*K4:/s14:pK1.5:l13:*s2:p1s9:\
-pN8:1B9:J7:N10:l9:i9:pJ8:N9:l7:l14:*l9:/l11:l9:+/s7:pl7:0=Z11:\
-l13:s2:pl10:Z12:l8:nl12:*1/RN12:l8:l12:*1/RN11:l12:l7:+s12:pJ10:N7:\
-0R]@r"
diff --git a/gnu/usr.bin/bc/number.c b/gnu/usr.bin/bc/number.c
deleted file mode 100644
index ce078fe28912..000000000000
--- a/gnu/usr.bin/bc/number.c
+++ /dev/null
@@ -1,1419 +0,0 @@
-/* number.c: Implements arbitrary precision numbers. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-#include "bcdefs.h"
-#include "proto.h"
-
-/* Storage used for special numbers. */
-bc_num _zero_;
-bc_num _one_;
-bc_num _two_;
-
-
-/* "Frees" a bc_num NUM.  Actually decreases reference count and only
-   frees the storage if reference count is zero. */
-
-void
-free_num (num)
-    bc_num *num;
-{
-  if (*num == NULL) return;
-  (*num)->n_refs--;
-  if ((*num)->n_refs == 0) free(*num);
-  *num = NULL;
-}
-
-
-/* new_num allocates a number and sets fields to known values. */
-
-bc_num
-new_num (length, scale)
-     int length, scale;
-{
-  bc_num temp;
-
-  temp = (bc_num) malloc (sizeof(bc_struct)+length+scale);
-  if (temp == NULL) out_of_memory ();
-  temp->n_sign = PLUS;
-  temp->n_len = length;
-  temp->n_scale = scale;
-  temp->n_refs = 1;
-  temp->n_value[0] = 0;
-  return temp;
-}
-
-
-/* Intitialize the number package! */
-
-void
-init_numbers ()
-{
-  _zero_ = new_num (1,0);
-  _one_  = new_num (1,0);
-  _one_->n_value[0] = 1;
-  _two_  = new_num (1,0);
-  _two_->n_value[0] = 2;
-}
-
-
-/* Make a copy of a number!  Just increments the reference count! */
-
-bc_num
-copy_num (num)
-     bc_num num;
-{
-  num->n_refs++;
-  return num;
-}
-
-
-/* Initialize a number NUM by making it a copy of zero. */
-
-void
-init_num (num)
-     bc_num *num;
-{
-  *num = copy_num (_zero_);
-}
-
-
-/* Convert an integer VAL to a bc number NUM. */
-
-void
-int2num (num, val)
-     bc_num *num;
-     int val;
-{
-  char buffer[30];
-  char *bptr, *vptr;
-  int  ix = 1;
-  char neg = 0;
-
-  /* Sign. */
-  if (val < 0)
-    {
-      neg = 1;
-      val = -val;
-    }
-
-  /* Get things going. */
-  bptr = buffer;
-  *bptr++ = val % 10;
-  val = val / 10;
-
-  /* Extract remaining digits. */
-  while (val != 0)
-    {
-      *bptr++ = val % 10;
-      val = val / 10;
-      ix++; 		/* Count the digits. */
-    }
-
-  /* Make the number. */
-  free_num (num);
-  *num = new_num (ix, 0);
-  if (neg) (*num)->n_sign = MINUS;
-
-  /* Assign the digits. */
-  vptr = (*num)->n_value;
-  while (ix-- > 0)
-    *vptr++ = *--bptr;
-}
-
-
-/* Convert a number NUM to a long.  The function returns only the integer
-   part of the number.  For numbers that are too large to represent as
-   a long, this function returns a zero.  This can be detected by checking
-   the NUM for zero after having a zero returned. */
-
-long
-num2long (num)
-     bc_num num;
-{
-  long val;
-  char *nptr;
-  int  index;
-
-  /* Extract the int value, ignore the fraction. */
-  val = 0;
-  nptr = num->n_value;
-  for (index=num->n_len; (index>0) && (val<=(LONG_MAX/10)); index--)
-    val = val*10 + *nptr++;
-
-  /* Check for overflow.  If overflow, return zero. */
-  if (index>0) val = 0;
-  if (val < 0) val = 0;
-
-  /* Return the value. */
-  if (num->n_sign == PLUS)
-    return (val);
-  else
-    return (-val);
-}
-
-
-/* The following are some math routines for numbers. */
-_PROTOTYPE(static int _do_compare, (bc_num n1, bc_num n2, int use_sign,
-				    int ignore_last));
-_PROTOTYPE(static void _rm_leading_zeros, (bc_num num));
-_PROTOTYPE(static bc_num _do_add, (bc_num n1, bc_num n2));
-_PROTOTYPE(static bc_num _do_sub, (bc_num n1, bc_num n2));
-_PROTOTYPE(static void _one_mult, (unsigned char *num, int size, int digit,
-				   unsigned char *result));
-
-
-
-/* Compare two bc numbers.  Return value is 0 if equal, -1 if N1 is less
-   than N2 and +1 if N1 is greater than N2.  If USE_SIGN is false, just
-   compare the magnitudes. */
-
-static int
-_do_compare (n1, n2, use_sign, ignore_last)
-     bc_num n1, n2;
-     int use_sign;
-     int ignore_last;
-{
-  char *n1ptr, *n2ptr;
-  int  count;
-
-  /* First, compare signs. */
-  if (use_sign && n1->n_sign != n2->n_sign)
-    {
-      if (n1->n_sign == PLUS)
-	return (1);	/* Positive N1 > Negative N2 */
-      else
-	return (-1);	/* Negative N1 < Positive N1 */
-    }
-
-  /* Now compare the magnitude. */
-  if (n1->n_len != n2->n_len)
-    {
-      if (n1->n_len > n2->n_len)
-	{
-	  /* Magnitude of n1 > n2. */
-	  if (!use_sign || n1->n_sign == PLUS)
-	    return (1);
-	  else
-	    return (-1);
-	}
-      else
-	{
-	  /* Magnitude of n1 < n2. */
-	  if (!use_sign || n1->n_sign == PLUS)
-	    return (-1);
-	  else
-	    return (1);
-	}
-    }
-
-  /* If we get here, they have the same number of integer digits.
-     check the integer part and the equal length part of the fraction. */
-  count = n1->n_len + MIN (n1->n_scale, n2->n_scale);
-  n1ptr = n1->n_value;
-  n2ptr = n2->n_value;
-
-  while ((count > 0) && (*n1ptr == *n2ptr))
-    {
-      n1ptr++;
-      n2ptr++;
-      count--;
-    }
-  if (ignore_last && count == 1 && n1->n_scale == n2->n_scale)
-    return (0);
-  if (count != 0)
-    {
-      if (*n1ptr > *n2ptr)
-	{
-	  /* Magnitude of n1 > n2. */
-	  if (!use_sign || n1->n_sign == PLUS)
-	    return (1);
-	  else
-	    return (-1);
-	}
-      else
-	{
-	  /* Magnitude of n1 < n2. */
-	  if (!use_sign || n1->n_sign == PLUS)
-	    return (-1);
-	  else
-	    return (1);
-	}
-    }
-
-  /* They are equal up to the last part of the equal part of the fraction. */
-  if (n1->n_scale != n2->n_scale)
-    if (n1->n_scale > n2->n_scale)
-      {
-	for (count = n1->n_scale-n2->n_scale; count>0; count--)
-	  if (*n1ptr++ != 0)
-	    {
-	      /* Magnitude of n1 > n2. */
-	      if (!use_sign || n1->n_sign == PLUS)
-		return (1);
-	      else
-		return (-1);
-	    }
-      }
-    else
-      {
-	for (count = n2->n_scale-n1->n_scale; count>0; count--)
-	  if (*n2ptr++ != 0)
-	    {
-	      /* Magnitude of n1 < n2. */
-	      if (!use_sign || n1->n_sign == PLUS)
-		return (-1);
-	      else
-		return (1);
-	    }
-      }
-
-  /* They must be equal! */
-  return (0);
-}
-
-
-/* This is the "user callable" routine to compare numbers N1 and N2. */
-
-int
-bc_compare (n1, n2)
-     bc_num n1, n2;
-{
-  return _do_compare (n1, n2, TRUE, FALSE);
-}
-
-
-/* In some places we need to check if the number NUM is zero. */
-
-char
-is_zero (num)
-     bc_num num;
-{
-  int  count;
-  char *nptr;
-
-  /* Quick check. */
-  if (num == _zero_) return TRUE;
-
-  /* Initialize */
-  count = num->n_len + num->n_scale;
-  nptr = num->n_value;
-
-  /* The check */
-  while ((count > 0) && (*nptr++ == 0)) count--;
-
-  if (count != 0)
-    return FALSE;
-  else
-    return TRUE;
-}
-
-
-/* In some places we need to check if the number is negative. */
-
-char
-is_neg (num)
-     bc_num num;
-{
-  return num->n_sign == MINUS;
-}
-
-
-/* For many things, we may have leading zeros in a number NUM.
-   _rm_leading_zeros just moves the data to the correct
-   place and adjusts the length. */
-
-static void
-_rm_leading_zeros (num)
-     bc_num num;
-{
-  int bytes;
-  char *dst, *src;
-
-  /* Do a quick check to see if we need to do it. */
-  if (*num->n_value != 0) return;
-
-  /* The first digit is 0, find the first non-zero digit in the 10's or
-     greater place. */
-  bytes = num->n_len;
-  src = num->n_value;
-  while (bytes > 1 && *src == 0) src++, bytes--;
-  num->n_len = bytes;
-  bytes += num->n_scale;
-  dst = num->n_value;
-  while (bytes-- > 0) *dst++ = *src++;
-
-}
-
-
-/* Perform addition: N1 is added to N2 and the value is
-   returned.  The signs of N1 and N2 are ignored. */
-
-static bc_num
-_do_add (n1, n2)
-     bc_num n1, n2;
-{
-  bc_num sum;
-  int sum_scale, sum_digits;
-  char *n1ptr, *n2ptr, *sumptr;
-  int carry, n1bytes, n2bytes;
-
-  /* Prepare sum. */
-  sum_scale = MAX (n1->n_scale, n2->n_scale);
-  sum_digits = MAX (n1->n_len, n2->n_len) + 1;
-  sum = new_num (sum_digits,sum_scale);
-
-  /* Start with the fraction part.  Initialize the pointers. */
-  n1bytes = n1->n_scale;
-  n2bytes = n2->n_scale;
-  n1ptr = (char *) (n1->n_value + n1->n_len + n1bytes - 1);
-  n2ptr = (char *) (n2->n_value + n2->n_len + n2bytes - 1);
-  sumptr = (char *) (sum->n_value + sum_scale + sum_digits - 1);
-
-  /* Add the fraction part.  First copy the longer fraction.*/
-  if (n1bytes != n2bytes)
-    {
-      if (n1bytes > n2bytes)
-	while (n1bytes>n2bytes)
-	  { *sumptr-- = *n1ptr--; n1bytes--;}
-      else
-	while (n2bytes>n1bytes)
-	  { *sumptr-- = *n2ptr--; n2bytes--;}
-    }
-
-  /* Now add the remaining fraction part and equal size integer parts. */
-  n1bytes += n1->n_len;
-  n2bytes += n2->n_len;
-  carry = 0;
-  while ((n1bytes > 0) && (n2bytes > 0))
-    {
-      *sumptr = *n1ptr-- + *n2ptr-- + carry;
-      if (*sumptr > 9)
-	{
-	   carry = 1;
-	   *sumptr -= 10;
-	}
-      else
-	carry = 0;
-      sumptr--;
-      n1bytes--;
-      n2bytes--;
-    }
-
-  /* Now add carry the longer integer part. */
-  if (n1bytes == 0)
-    { n1bytes = n2bytes; n1ptr = n2ptr; }
-  while (n1bytes-- > 0)
-    {
-      *sumptr = *n1ptr-- + carry;
-      if (*sumptr > 9)
-	{
-	   carry = 1;
-	   *sumptr -= 10;
-	 }
-      else
-	carry = 0;
-      sumptr--;
-    }
-
-  /* Set final carry. */
-  if (carry == 1)
-    *sumptr += 1;
-
-  /* Adjust sum and return. */
-  _rm_leading_zeros (sum);
-  return sum;
-}
-
-
-/* Perform subtraction: N2 is subtracted from N1 and the value is
-   returned.  The signs of N1 and N2 are ignored.  Also, N1 is
-   assumed to be larger than N2.  */
-
-static bc_num
-_do_sub (n1, n2)
-     bc_num n1, n2;
-{
-  bc_num diff;
-  int diff_scale, diff_len;
-  int min_scale, min_len;
-  char *n1ptr, *n2ptr, *diffptr;
-  int borrow, count, val;
-
-  /* Allocate temporary storage. */
-  diff_len = MAX (n1->n_len, n2->n_len);
-  diff_scale = MAX (n1->n_scale, n2->n_scale);
-  min_len = MIN  (n1->n_len, n2->n_len);
-  min_scale = MIN (n1->n_scale, n2->n_scale);
-  diff = new_num (diff_len, diff_scale);
-
-  /* Initialize the subtract. */
-  n1ptr = (char *) (n1->n_value + n1->n_len + n1->n_scale -1);
-  n2ptr = (char *) (n2->n_value + n2->n_len + n2->n_scale -1);
-  diffptr = (char *) (diff->n_value + diff_len + diff_scale -1);
-
-  /* Subtract the numbers. */
-  borrow = 0;
-
-  /* Take care of the longer scaled number. */
-  if (n1->n_scale != min_scale)
-    {
-      /* n1 has the longer scale */
-      for (count = n1->n_scale - min_scale; count > 0; count--)
-	*diffptr-- = *n1ptr--;
-    }
-  else
-    {
-      /* n2 has the longer scale */
-      for (count = n2->n_scale - min_scale; count > 0; count--)
-	{
-	  val = - *n2ptr-- - borrow;
-	  if (val < 0)
-	    {
-	      val += 10;
-	      borrow = 1;
-	    }
-	  else
-	    borrow = 0;
-	  *diffptr-- = val;
-	}
-    }
-
-  /* Now do the equal length scale and integer parts. */
-
-  for (count = 0; count < min_len + min_scale; count++)
-    {
-      val = *n1ptr-- - *n2ptr-- - borrow;
-      if (val < 0)
-	{
-	  val += 10;
-	  borrow = 1;
-	}
-      else
-	borrow = 0;
-      *diffptr-- = val;
-    }
-
-  /* If n1 has more digits then n2, we now do that subtract. */
-  if (diff_len != min_len)
-    {
-      for (count = diff_len - min_len; count > 0; count--)
-	{
-	  val = *n1ptr-- - borrow;
-	  if (val < 0)
-	    {
-	      val += 10;
-	      borrow = 1;
-	    }
-	  else
-	    borrow = 0;
-	  *diffptr-- = val;
-	}
-    }
-
-  /* Clean up and return. */
-  _rm_leading_zeros (diff);
-  return diff;
-}
-
-
-/* Here is the full add routine that takes care of negative numbers.
-   N1 is added to N2 and the result placed into RESULT. */
-
-void
-bc_add ( n1, n2, result)
-     bc_num n1, n2, *result;
-{
-  bc_num sum = 0;
-  int cmp_res;
-
-  if (n1->n_sign == n2->n_sign)
-    {
-      sum = _do_add (n1, n2);
-      sum->n_sign = n1->n_sign;
-    }
-  else
-    {
-      /* subtraction must be done. */
-      cmp_res = _do_compare (n1, n2, FALSE, FALSE);  /* Compare magnitudes. */
-      switch (cmp_res)
-	{
-	case -1:
-	  /* n1 is less than n2, subtract n1 from n2. */
-	  sum = _do_sub (n2, n1);
-	  sum->n_sign = n2->n_sign;
-	  break;
-	case  0:
-	  /* They are equal! return zero! */
-	  sum = copy_num (_zero_);
-	  break;
-	case  1:
-	  /* n2 is less than n1, subtract n2 from n1. */
-	  sum = _do_sub (n1, n2);
-	  sum->n_sign = n1->n_sign;
-	}
-    }
-
-  /* Clean up and return. */
-  free_num (result);
-  *result = sum;
-}
-
-
-/* Here is the full subtract routine that takes care of negative numbers.
-   N2 is subtracted from N1 and the result placed in RESULT. */
-
-void
-bc_sub ( n1, n2, result)
-     bc_num n1, n2, *result;
-{
-  bc_num diff = 0;
-  int cmp_res;
-
-  if (n1->n_sign != n2->n_sign)
-    {
-      diff = _do_add (n1, n2);
-      diff->n_sign = n1->n_sign;
-    }
-  else
-    {
-      /* subtraction must be done. */
-      cmp_res = _do_compare (n1, n2, FALSE, FALSE);  /* Compare magnitudes. */
-      switch (cmp_res)
-	{
-	case -1:
-	  /* n1 is less than n2, subtract n1 from n2. */
-	  diff = _do_sub (n2, n1);
-	  diff->n_sign = (n2->n_sign == PLUS ? MINUS : PLUS);
-	  break;
-	case  0:
-	  /* They are equal! return zero! */
-	  diff = copy_num (_zero_);
-	  break;
-	case  1:
-	  /* n2 is less than n1, subtract n2 from n1. */
-	  diff = _do_sub (n1, n2);
-	  diff->n_sign = n1->n_sign;
-	  break;
-	}
-    }
-
-  /* Clean up and return. */
-  free_num (result);
-  *result = diff;
-}
-
-
-/* The multiply routine.  N2 time N1 is put int PROD with the scale of
-   the result being MIN(N2 scale+N1 scale, MAX (SCALE, N2 scale, N1 scale)).
-   */
-
-void
-bc_multiply (n1, n2, prod, scale)
-     bc_num n1, n2, *prod;
-     int scale;
-{
-  bc_num pval;			/* For the working storage. */
-  char *n1ptr, *n2ptr, *pvptr;	/* Work pointers. */
-  char *n1end, *n2end;		/* To the end of n1 and n2. */
-
-  int indx;
-  int len1, len2, total_digits;
-  long sum;
-  int full_scale, prod_scale;
-  int toss;
-
-  /* Initialize things. */
-  len1 = n1->n_len + n1->n_scale;
-  len2 = n2->n_len + n2->n_scale;
-  total_digits = len1 + len2;
-  full_scale = n1->n_scale + n2->n_scale;
-  prod_scale = MIN(full_scale,MAX(scale,MAX(n1->n_scale,n2->n_scale)));
-  toss = full_scale - prod_scale;
-  pval =  new_num (total_digits-full_scale, prod_scale);
-  pval->n_sign = ( n1->n_sign == n2->n_sign ? PLUS : MINUS );
-  n1end = (char *) (n1->n_value + len1 - 1);
-  n2end = (char *) (n2->n_value + len2 - 1);
-  pvptr = (char *) (pval->n_value + total_digits - toss - 1);
-  sum = 0;
-
-  /* Here are the loops... */
-  for (indx = 0; indx < toss; indx++)
-    {
-      n1ptr = (char *) (n1end - MAX(0, indx-len2+1));
-      n2ptr = (char *) (n2end - MIN(indx, len2-1));
-      while ((n1ptr >= n1->n_value) && (n2ptr <= n2end))
-	sum += *n1ptr-- * *n2ptr++;
-      sum = sum / 10;
-    }
-  for ( ; indx < total_digits-1; indx++)
-    {
-      n1ptr = (char *) (n1end - MAX(0, indx-len2+1));
-      n2ptr = (char *) (n2end - MIN(indx, len2-1));
-      while ((n1ptr >= n1->n_value) && (n2ptr <= n2end))
-	sum += *n1ptr-- * *n2ptr++;
-      *pvptr-- = sum % 10;
-      sum = sum / 10;
-    }
-  *pvptr-- = sum;
-
-  /* Assign to prod and clean up the number. */
-  free_num (prod);
-  *prod = pval;
-  _rm_leading_zeros (*prod);
-  if (is_zero (*prod))
-    (*prod)->n_sign = PLUS;
-}
-
-
-/* Some utility routines for the divide:  First a one digit multiply.
-   NUM (with SIZE digits) is multiplied by DIGIT and the result is
-   placed into RESULT.  It is written so that NUM and RESULT can be
-   the same pointers.  */
-
-static void
-_one_mult (num, size, digit, result)
-     unsigned char *num;
-     int size, digit;
-     unsigned char *result;
-{
-  int carry, value;
-  unsigned char *nptr, *rptr;
-
-  if (digit == 0)
-    memset (result, 0, size);
-  else
-    {
-      if (digit == 1)
-	memcpy (result, num, size);
-      else
-	{
-	  /* Initialize */
-	  nptr = (unsigned char *) (num+size-1);
-	  rptr = (unsigned char *) (result+size-1);
-	  carry = 0;
-
-	  while (size-- > 0)
-	    {
-	      value = *nptr-- * digit + carry;
-	      *rptr-- = value % 10;
-	      carry = value / 10;
-	    }
-
-	  if (carry != 0) *rptr = carry;
-	}
-    }
-}
-
-
-/* The full division routine. This computes N1 / N2.  It returns
-   0 if the division is ok and the result is in QUOT.  The number of
-   digits after the decimal point is SCALE. It returns -1 if division
-   by zero is tried.  The algorithm is found in Knuth Vol 2. p237. */
-
-int
-bc_divide (n1, n2, quot, scale)
-     bc_num n1, n2, *quot;
-     int scale;
-{
-  bc_num qval;
-  unsigned char *num1, *num2;
-  unsigned char *ptr1, *ptr2, *n2ptr, *qptr;
-  int  scale1, val;
-  unsigned int  len1, len2, scale2, qdigits, extra, count;
-  unsigned int  qdig, qguess, borrow, carry;
-  unsigned char *mval;
-  char zero;
-  unsigned int  norm;
-
-  /* Test for divide by zero. */
-  if (is_zero (n2)) return -1;
-
-  /* Test for divide by 1.  If it is we must truncate. */
-  if (n2->n_scale == 0)
-    {
-      if (n2->n_len == 1 && *n2->n_value == 1)
-	{
-	  qval = new_num (n1->n_len, scale);
-	  qval->n_sign = (n1->n_sign == n2->n_sign ? PLUS : MINUS);
-	  memset (&qval->n_value[n1->n_len],0,scale);
-	  memcpy (qval->n_value, n1->n_value,
-		  n1->n_len + MIN(n1->n_scale,scale));
-	  free_num (quot);
-	  *quot = qval;
-	}
-    }
-
-  /* Set up the divide.  Move the decimal point on n1 by n2's scale.
-     Remember, zeros on the end of num2 are wasted effort for dividing. */
-  scale2 = n2->n_scale;
-  n2ptr = (unsigned char *) n2->n_value+n2->n_len+scale2-1;
-  while ((scale2 > 0) && (*n2ptr-- == 0)) scale2--;
-
-  len1 = n1->n_len + scale2;
-  scale1 = n1->n_scale - scale2;
-  if (scale1 < scale)
-    extra = scale - scale1;
-  else
-    extra = 0;
-  num1 = (unsigned char *) malloc (n1->n_len+n1->n_scale+extra+2);
-  if (num1 == NULL) out_of_memory();
-  memset (num1, 0, n1->n_len+n1->n_scale+extra+2);
-  memcpy (num1+1, n1->n_value, n1->n_len+n1->n_scale);
-
-  len2 = n2->n_len + scale2;
-  num2 = (unsigned char *) malloc (len2+1);
-  if (num2 == NULL) out_of_memory();
-  memcpy (num2, n2->n_value, len2);
-  *(num2+len2) = 0;
-  n2ptr = num2;
-  while (*n2ptr == 0)
-    {
-      n2ptr++;
-      len2--;
-    }
-
-  /* Calculate the number of quotient digits. */
-  if (len2 > len1+scale)
-    {
-      qdigits = scale+1;
-      zero = TRUE;
-    }
-  else
-    {
-      zero = FALSE;
-      if (len2>len1)
-	qdigits = scale+1;  	/* One for the zero integer part. */
-      else
-	qdigits = len1-len2+scale+1;
-    }
-
-  /* Allocate and zero the storage for the quotient. */
-  qval = new_num (qdigits-scale,scale);
-  memset (qval->n_value, 0, qdigits);
-
-  /* Allocate storage for the temporary storage mval. */
-  mval = (unsigned char *) malloc (len2+1);
-  if (mval == NULL) out_of_memory ();
-
-  /* Now for the full divide algorithm. */
-  if (!zero)
-    {
-      /* Normalize */
-      norm =  10 / ((int)*n2ptr + 1);
-      if (norm != 1)
-	{
-	  _one_mult (num1, len1+scale1+extra+1, norm, num1);
-	  _one_mult (n2ptr, len2, norm, n2ptr);
-	}
-
-      /* Initialize divide loop. */
-      qdig = 0;
-      if (len2 > len1)
-	qptr = (unsigned char *) qval->n_value+len2-len1;
-      else
-	qptr = (unsigned char *) qval->n_value;
-
-      /* Loop */
-      while (qdig <= len1+scale-len2)
-	{
-	  /* Calculate the quotient digit guess. */
-	  if (*n2ptr == num1[qdig])
-	    qguess = 9;
-	  else
-	    qguess = (num1[qdig]*10 + num1[qdig+1]) / *n2ptr;
-
-	  /* Test qguess. */
-	  if (n2ptr[1]*qguess >
-	      (num1[qdig]*10 + num1[qdig+1] - *n2ptr*qguess)*10
-	       + num1[qdig+2])
-	    {
-	      qguess--;
-	      /* And again. */
-	      if (n2ptr[1]*qguess >
-		  (num1[qdig]*10 + num1[qdig+1] - *n2ptr*qguess)*10
-		  + num1[qdig+2])
-		qguess--;
-	    }
-
-	  /* Multiply and subtract. */
-	  borrow = 0;
-	  if (qguess != 0)
-	    {
-	      *mval = 0;
-	      _one_mult (n2ptr, len2, qguess, mval+1);
-	      ptr1 = (unsigned char *) num1+qdig+len2;
-	      ptr2 = (unsigned char *) mval+len2;
-	      for (count = 0; count < len2+1; count++)
-		{
-		  val = (int) *ptr1 - (int) *ptr2-- - borrow;
-		  if (val < 0)
-		    {
-		      val += 10;
-		      borrow = 1;
-		    }
-		  else
-		    borrow = 0;
-		  *ptr1-- = val;
-		}
-	    }
-
-	  /* Test for negative result. */
-	  if (borrow == 1)
-	    {
-	      qguess--;
-	      ptr1 = (unsigned char *) num1+qdig+len2;
-	      ptr2 = (unsigned char *) n2ptr+len2-1;
-	      carry = 0;
-	      for (count = 0; count < len2; count++)
-		{
-		  val = (int) *ptr1 + (int) *ptr2-- + carry;
-		  if (val > 9)
-		    {
-		      val -= 10;
-		      carry = 1;
-		    }
-		  else
-		    carry = 0;
-		  *ptr1-- = val;
-		}
-	      if (carry == 1) *ptr1 = (*ptr1 + 1) % 10;
-	    }
-
-	  /* We now know the quotient digit. */
-	  *qptr++ =  qguess;
-	  qdig++;
-	}
-    }
-
-  /* Clean up and return the number. */
-  qval->n_sign = ( n1->n_sign == n2->n_sign ? PLUS : MINUS );
-  if (is_zero (qval)) qval->n_sign = PLUS;
-  _rm_leading_zeros (qval);
-  free_num (quot);
-  *quot = qval;
-
-  /* Clean up temporary storage. */
-  free (mval);
-  free (num1);
-  free (num2);
-
-  return 0;	/* Everything is OK. */
-}
-
-
-/* Modulo for numbers.  This computes NUM1 % NUM2  and puts the
-   result in RESULT.   */
-
-int
-bc_modulo (num1, num2, result, scale)
-     bc_num num1, num2, *result;
-     int scale;
-{
-  bc_num temp;
-  int rscale;
-
-  /* Check for correct numbers. */
-  if (is_zero (num2)) return -1;
-
-  /* Calculate final scale. */
-  rscale = MAX (num1->n_scale, num2->n_scale+scale);
-  init_num (&temp);
-
-  /* Calculate it. */
-  bc_divide (num1, num2, &temp, scale);
-  bc_multiply (temp, num2, &temp, rscale);
-  bc_sub (num1, temp, result);
-  free_num (&temp);
-
-  return 0;	/* Everything is OK. */
-}
-
-
-/* Raise NUM1 to the NUM2 power.  The result is placed in RESULT.
-   Maximum exponent is LONG_MAX.  If a NUM2 is not an integer,
-   only the integer part is used.  */
-
-void
-bc_raise (num1, num2, result, scale)
-     bc_num num1, num2, *result;
-     int scale;
-{
-   bc_num temp, power;
-   long exponent;
-   int rscale;
-   char neg;
-
-   /* Check the exponent for scale digits and convert to a long. */
-   if (num2->n_scale != 0)
-     rt_warn ("non-zero scale in exponent");
-   exponent = num2long (num2);
-   if (exponent == 0 && (num2->n_len > 1 || num2->n_value[0] != 0))
-       rt_error ("exponent too large in raise");
-
-   /* Special case if exponent is a zero. */
-   if (exponent == 0)
-     {
-       free_num (result);
-       *result = copy_num (_one_);
-       return;
-     }
-
-   /* Other initializations. */
-   if (exponent < 0)
-     {
-       neg = TRUE;
-       exponent = -exponent;
-       rscale = scale;
-     }
-   else
-     {
-       neg = FALSE;
-       rscale = MIN (num1->n_scale*exponent, MAX(scale, num1->n_scale));
-     }
-
-   /* Set initial value of temp.  */
-   power = copy_num (num1);
-   while ((exponent & 1) == 0)
-     {
-       bc_multiply (power, power, &power, rscale);
-       exponent = exponent >> 1;
-     }
-   temp = copy_num (power);
-   exponent = exponent >> 1;
-
-   /* Do the calculation. */
-   while (exponent > 0)
-     {
-       bc_multiply (power, power, &power, rscale);
-       if ((exponent & 1) == 1)
-	 bc_multiply (temp, power, &temp, rscale);
-       exponent = exponent >> 1;
-     }
-
-   /* Assign the value. */
-   if (neg)
-     {
-       bc_divide (_one_, temp, result, rscale);
-       free_num (&temp);
-     }
-   else
-     {
-       free_num (result);
-       *result = temp;
-     }
-   free_num (&power);
-}
-
-
-/* Take the square root NUM and return it in NUM with SCALE digits
-   after the decimal place. */
-
-int
-bc_sqrt (num, scale)
-     bc_num *num;
-     int scale;
-{
-  int rscale, cmp_res, done;
-  int cscale;
-  bc_num guess, guess1, point5;
-
-  /* Initial checks. */
-  cmp_res = bc_compare (*num, _zero_);
-  if (cmp_res < 0)
-    return 0;		/* error */
-  else
-    {
-      if (cmp_res == 0)
-	{
-	  free_num (num);
-	  *num = copy_num (_zero_);
-	  return 1;
-	}
-    }
-  cmp_res = bc_compare (*num, _one_);
-  if (cmp_res == 0)
-    {
-      free_num (num);
-      *num = copy_num (_one_);
-      return 1;
-    }
-
-  /* Initialize the variables. */
-  rscale = MAX (scale, (*num)->n_scale);
-  init_num (&guess);
-  init_num (&guess1);
-  point5 = new_num (1,1);
-  point5->n_value[1] = 5;
-
-
-  /* Calculate the initial guess. */
-  if (cmp_res < 0)
-    /* The number is between 0 and 1.  Guess should start at 1. */
-    guess = copy_num (_one_);
-  else
-    {
-      /* The number is greater than 1.  Guess should start at 10^(exp/2). */
-      int2num (&guess,10);
-      int2num (&guess1,(*num)->n_len);
-      bc_multiply (guess1, point5, &guess1, 0);
-      guess1->n_scale = 0;
-      bc_raise (guess, guess1, &guess, 0);
-      free_num (&guess1);
-    }
-
-  /* Find the square root using Newton's algorithm. */
-  done = FALSE;
-  cscale = 2;
-  while (!done)
-    {
-      free_num (&guess1);
-      guess1 = copy_num (guess);
-      bc_divide (*num,guess,&guess,cscale);
-      bc_add (guess,guess1,&guess);
-      bc_multiply (guess,point5,&guess,cscale);
-      cmp_res = _do_compare (guess,guess1,FALSE,TRUE);
-      if (cmp_res == 0)
-	if (cscale < rscale+1)
-	  cscale = MIN (cscale*3, rscale+1);
-	else
-	  done = TRUE;
-    }
-
-  /* Assign the number and clean up. */
-  free_num (num);
-  bc_divide (guess,_one_,num,rscale);
-  free_num (&guess);
-  free_num (&guess1);
-  free_num (&point5);
-  return 1;
-}
-
-
-/* The following routines provide output for bcd numbers package
-   using the rules of POSIX bc for output. */
-
-/* This structure is used for saving digits in the conversion process. */
-typedef struct stk_rec {
-	long  digit;
-	struct stk_rec *next;
-} stk_rec;
-
-/* The reference string for digits. */
-char ref_str[] = "0123456789ABCDEF";
-
-
-/* A special output routine for "multi-character digits."  Exactly
-   SIZE characters must be output for the value VAL.  If SPACE is
-   non-zero, we must output one space before the number.  OUT_CHAR
-   is the actual routine for writing the characters. */
-
-void
-out_long (val, size, space, out_char)
-     long val;
-     int size, space;
-#ifdef __STDC__
-     void (*out_char)(int);
-#else
-     void (*out_char)();
-#endif
-{
-  char digits[40];
-  int len, ix;
-
-  if (space) (*out_char) (' ');
-  sprintf (digits, "%ld", val);
-  len = strlen (digits);
-  while (size > len)
-    {
-      (*out_char) ('0');
-      size--;
-    }
-  for (ix=0; ix < len; ix++)
-    (*out_char) (digits[ix]);
-}
-
-/* Output of a bcd number.  NUM is written in base O_BASE using OUT_CHAR
-   as the routine to do the actual output of the characters. */
-
-void
-out_num (num, o_base, out_char)
-     bc_num num;
-     int o_base;
-#ifdef __STDC__
-     void (*out_char)(int);
-#else
-     void (*out_char)();
-#endif
-{
-  char *nptr;
-  int  index, fdigit, pre_space;
-  stk_rec *digits, *temp;
-  bc_num int_part, frac_part, base, cur_dig, t_num, max_o_digit;
-
-  /* The negative sign if needed. */
-  if (num->n_sign == MINUS) (*out_char) ('-');
-
-  /* Output the number. */
-  if (is_zero (num))
-    (*out_char) ('0');
-  else
-    if (o_base == 10)
-      {
-	/* The number is in base 10, do it the fast way. */
-	nptr = num->n_value;
-	if (num->n_len > 1 || *nptr != 0)
-	  for (index=num->n_len; index>0; index--)
-	    (*out_char) (BCD_CHAR(*nptr++));
-	else
-	  nptr++;
-
-	/* Now the fraction. */
-	if (num->n_scale > 0)
-	  {
-	    (*out_char) ('.');
-	    for (index=0; index<num->n_scale; index++)
-	      (*out_char) (BCD_CHAR(*nptr++));
-	  }
-      }
-    else
-      {
-	/* The number is some other base. */
-	digits = NULL;
-	init_num (&int_part);
-	bc_divide (num, _one_, &int_part, 0);
-	init_num (&frac_part);
-	init_num (&cur_dig);
-	init_num (&base);
-	bc_sub (num, int_part, &frac_part);
-	/* Make the INT_PART and FRAC_PART positive. */
-	int_part->n_sign = PLUS;
-	frac_part->n_sign = PLUS;
-	int2num (&base, o_base);
-	init_num (&max_o_digit);
-	int2num (&max_o_digit, o_base-1);
-
-
-	/* Get the digits of the integer part and push them on a stack. */
-	while (!is_zero (int_part))
-	  {
-	    bc_modulo (int_part, base, &cur_dig, 0);
-	    temp = (stk_rec *) malloc (sizeof(stk_rec));
-	    if (temp == NULL) out_of_memory();
-	    temp->digit = num2long (cur_dig);
-	    temp->next = digits;
-	    digits = temp;
-	    bc_divide (int_part, base, &int_part, 0);
-	  }
-
-	/* Print the digits on the stack. */
-	if (digits != NULL)
-	  {
-	    /* Output the digits. */
-	    while (digits != NULL)
-	      {
-		temp = digits;
-		digits = digits->next;
-		if (o_base <= 16)
-		  (*out_char) (ref_str[ (int) temp->digit]);
-		else
-		  out_long (temp->digit, max_o_digit->n_len, 1, out_char);
-		free (temp);
-	      }
-	  }
-
-	/* Get and print the digits of the fraction part. */
-	if (num->n_scale > 0)
-	  {
-	    (*out_char) ('.');
-	    pre_space = 0;
-	    t_num = copy_num (_one_);
-	    while (t_num->n_len <= num->n_scale) {
-	      bc_multiply (frac_part, base, &frac_part, num->n_scale);
-	      fdigit = num2long (frac_part);
-	      int2num (&int_part, fdigit);
-	      bc_sub (frac_part, int_part, &frac_part);
-	      if (o_base <= 16)
-		(*out_char) (ref_str[fdigit]);
-	      else {
-		out_long (fdigit, max_o_digit->n_len, pre_space, out_char);
-		pre_space = 1;
-	      }
-	      bc_multiply (t_num, base, &t_num, 0);
-	    }
-	  }
-
-	/* Clean up. */
-	free_num (&int_part);
-	free_num (&frac_part);
-	free_num (&base);
-	free_num (&cur_dig);
-      }
-}
-
-
-#if DEBUG > 0
-
-/* Debugging procedures.  Some are just so one can call them from the
-   debugger.  */
-
-/* p_n prints the number NUM in base 10. */
-
-void
-p_n (num)
-     bc_num num;
-{
-  out_num (num, 10, out_char);
-}
-
-
-/* p_b prints a character array as if it was a string of bcd digits. */
-void
-p_v (name, num, len)
-     char *name;
-     unsigned char *num;
-     int len;
-{
-  int i;
-  printf ("%s=", name);
-  for (i=0; i<len; i++) printf ("%c",BCD_CHAR(num[i]));
-  printf ("\n");
-}
-
-
-/* Convert strings to bc numbers.  Base 10 only.*/
-
-void
-str2num (num, str, scale)
-     bc_num *num;
-     char *str;
-     int scale;
-{
-  int digits, strscale;
-  char *ptr, *nptr;
-  char zero_int;
-
-  /* Prepare num. */
-  free_num (num);
-
-  /* Check for valid number and count digits. */
-  ptr = str;
-  digits = 0;
-  strscale = 0;
-  zero_int = FALSE;
-  if ( (*ptr == '+') || (*ptr == '-'))  ptr++;  /* Sign */
-  while (*ptr == '0') ptr++;			/* Skip leading zeros. */
-  while (isdigit(*ptr)) ptr++, digits++;	/* digits */
-  if (*ptr == '.') ptr++;			/* decimal point */
-  while (isdigit(*ptr)) ptr++, strscale++;	/* digits */
-  if ((*ptr != '\0') || (digits+strscale == 0))
-    {
-      *num = copy_num (_zero_);
-      return;
-    }
-
-  /* Adjust numbers and allocate storage and initialize fields. */
-  strscale = MIN(strscale, scale);
-  if (digits == 0)
-    {
-      zero_int = TRUE;
-      digits = 1;
-    }
-  *num = new_num (digits, strscale);
-
-  /* Build the whole number. */
-  ptr = str;
-  if (*ptr == '-')
-    {
-      (*num)->n_sign = MINUS;
-      ptr++;
-    }
-  else
-    {
-      (*num)->n_sign = PLUS;
-      if (*ptr == '+') ptr++;
-    }
-  while (*ptr == '0') ptr++;			/* Skip leading zeros. */
-  nptr = (*num)->n_value;
-  if (zero_int)
-    {
-      *nptr++ = 0;
-      digits = 0;
-    }
-  for (;digits > 0; digits--)
-    *nptr++ = CH_VAL(*ptr++);
-
-
-  /* Build the fractional part. */
-  if (strscale > 0)
-    {
-      ptr++;  /* skip the decimal point! */
-      for (;strscale > 0; strscale--)
-	*nptr++ = CH_VAL(*ptr++);
-    }
-}
-
-/* Convert a numbers to a string.  Base 10 only.*/
-
-char
-*num2str (num)
-      bc_num num;
-{
-  char *str, *sptr;
-  char *nptr;
-  int  index, signch;
-
-  /* Allocate the string memory. */
-  signch = ( num->n_sign == PLUS ? 0 : 1 );  /* Number of sign chars. */
-  if (num->n_scale > 0)
-    str = (char *) malloc (num->n_len + num->n_scale + 2 + signch);
-  else
-    str = (char *) malloc (num->n_len + 1 + signch);
-  if (str == NULL) out_of_memory();
-
-  /* The negative sign if needed. */
-  sptr = str;
-  if (signch) *sptr++ = '-';
-
-  /* Load the whole number. */
-  nptr = num->n_value;
-  for (index=num->n_len; index>0; index--)
-    *sptr++ = BCD_CHAR(*nptr++);
-
-  /* Now the fraction. */
-  if (num->n_scale > 0)
-    {
-      *sptr++ = '.';
-      for (index=0; index<num->n_scale; index++)
-	*sptr++ = BCD_CHAR(*nptr++);
-    }
-
-  /* Terminate the string and return it! */
-  *sptr = '\0';
-  return (str);
-}
-#endif
diff --git a/gnu/usr.bin/bc/number.h b/gnu/usr.bin/bc/number.h
deleted file mode 100644
index 325612ea57f8..000000000000
--- a/gnu/usr.bin/bc/number.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/* number.h: Arbitrary precision numbers header file. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-
-typedef enum {PLUS, MINUS} sign;
-
-typedef struct
-    {
-      sign n_sign;
-      int  n_len;	/* The number of digits before the decimal point. */
-      int  n_scale;	/* The number of digits after the decimal point. */
-      int  n_refs;      /* The number of pointers to this number. */
-      char n_value[1];  /* The storage. Not zero char terminated. It is
-      			   allocated with all other fields.  */
-    } bc_struct;
-
-typedef bc_struct *bc_num;
-
-/*  Some useful macros and constants. */
-
-#define CH_VAL(c)     (c - '0')
-#define BCD_CHAR(d)   (d + '0')
-
-#ifdef MIN
-#undef MIN
-#undef MAX
-#endif
-#define MAX(a,b)      (a>b?a:b)
-#define MIN(a,b)      (a>b?b:a)
-#define ODD(a)        (a&1)
-
-#ifndef TRUE
-#define TRUE 1
-#define FALSE 0
-#endif
diff --git a/gnu/usr.bin/bc/proto.h b/gnu/usr.bin/bc/proto.h
deleted file mode 100644
index 37fb212a86e2..000000000000
--- a/gnu/usr.bin/bc/proto.h
+++ /dev/null
@@ -1,160 +0,0 @@
-/* proto.h: Prototype function definitions for "external" functions. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-/* For the pc version using k&r ACK. (minix1.5 and earlier.) */
-#ifdef SHORTNAMES
-#define init_numbers i_numbers
-#define push_constant push__constant
-#define load_const in_load_const
-#define yy_get_next_buffer yyget_next_buffer
-#define yy_init_buffer yyinit_buffer
-#define yy_last_accepting_state yylast_accepting_state
-#define arglist1 arg1list
-#endif
-
-/* Include the standard library header files. */
-#include <unistd.h>
-#include <stdlib.h>
-
-/* Define the _PROTOTYPE macro if it is needed. */
-
-#ifndef _PROTOTYPE
-#ifdef __STDC__
-#define _PROTOTYPE(func, args) func args
-#else
-#define _PROTOTYPE(func, args) func()
-#endif
-#endif
-
-/* From execute.c */
-_PROTOTYPE(void stop_execution, (int));
-_PROTOTYPE(unsigned char byte, (program_counter *pc));
-_PROTOTYPE(void execute, (void));
-_PROTOTYPE(char prog_char, (void));
-_PROTOTYPE(char input_char, (void));
-_PROTOTYPE(void push_constant, (char (*in_char)(void), int conv_base));
-_PROTOTYPE(void push_b10_const, (program_counter *pc));
-_PROTOTYPE(void assign, (int c_code));
-
-/* From util.c */
-_PROTOTYPE(char *strcopyof, (char *str));
-_PROTOTYPE(arg_list *nextarg, (arg_list *args, int val));
-_PROTOTYPE(char *arg_str, (arg_list *args));
-_PROTOTYPE(char *call_str, (arg_list *args));
-_PROTOTYPE(void free_args, (arg_list *args));
-_PROTOTYPE(void check_params, (arg_list *params, arg_list *autos));
-_PROTOTYPE(void init_gen, (void));
-_PROTOTYPE(void generate, (char *str));
-_PROTOTYPE(void run_code, (void));
-_PROTOTYPE(void out_char, (int ch));
-_PROTOTYPE(id_rec *find_id, (id_rec *tree, char *id));
-_PROTOTYPE(int insert_id_rec, (id_rec **root, id_rec *new_id));
-_PROTOTYPE(void init_tree, (void));
-_PROTOTYPE(int lookup, (char *name, int namekind));
-_PROTOTYPE(char *bc_malloc, (int));
-_PROTOTYPE(void out_of_memory, (void));
-_PROTOTYPE(void welcome, (void));
-_PROTOTYPE(void warranty, (char *));
-_PROTOTYPE(void limits, (void));
-_PROTOTYPE(void yyerror, (char *str ,...));
-_PROTOTYPE(void warn, (char *mesg ,...));
-_PROTOTYPE(void rt_error, (char *mesg ,...));
-_PROTOTYPE(void rt_warn, (char *mesg ,...));
-
-/* From load.c */
-_PROTOTYPE(void init_load, (void));
-_PROTOTYPE(void addbyte, (int byte));
-_PROTOTYPE(void def_label, (long lab));
-_PROTOTYPE(long long_val, (char **str));
-_PROTOTYPE(void load_code, (char *code));
-
-/* From main.c */
-_PROTOTYPE(int main, (int argc , char *argv []));
-_PROTOTYPE(int open_new_file, (void));
-_PROTOTYPE(void new_yy_file, (FILE *file));
-_PROTOTYPE(void use_quit, (int));
-
-/* From number.c */
-_PROTOTYPE(void free_num, (bc_num *num));
-_PROTOTYPE(bc_num new_num, (int length, int scale));
-_PROTOTYPE(void init_numbers, (void));
-_PROTOTYPE(bc_num copy_num, (bc_num num));
-_PROTOTYPE(void init_num, (bc_num *num));
-_PROTOTYPE(void str2num, (bc_num *num, char *str, int scale));
-_PROTOTYPE(char *num2str, (bc_num num));
-_PROTOTYPE(void int2num, (bc_num *num, int val));
-_PROTOTYPE(long num2long, (bc_num num));
-_PROTOTYPE(int bc_compare, (bc_num n1, bc_num n2));
-_PROTOTYPE(char is_zero, (bc_num num));
-_PROTOTYPE(char is_neg, (bc_num num));
-_PROTOTYPE(void bc_add, (bc_num n1, bc_num n2, bc_num *result));
-_PROTOTYPE(void bc_sub, (bc_num n1, bc_num n2, bc_num *result));
-_PROTOTYPE(void bc_multiply, (bc_num n1, bc_num n2, bc_num *prod, int scale));
-_PROTOTYPE(int bc_divide, (bc_num n1, bc_num n2, bc_num *quot, int scale));
-_PROTOTYPE(int bc_modulo, (bc_num num1, bc_num num2, bc_num *result, int scale));
-_PROTOTYPE(void bc_raise, (bc_num num1, bc_num num2, bc_num *result, int scale));
-_PROTOTYPE(int bc_sqrt, (bc_num *num, int scale));
-_PROTOTYPE(void out_long, (long val, int size, int space,
-			   void (*out_char)(int)));
-_PROTOTYPE(void out_num, (bc_num num, int o_base, void (* out_char)(int)));
-
-
-/* From storage.c */
-_PROTOTYPE(void init_storage, (void));
-_PROTOTYPE(void more_functions, (void));
-_PROTOTYPE(void more_variables, (void));
-_PROTOTYPE(void more_arrays, (void));
-_PROTOTYPE(void clear_func, (int func ));
-_PROTOTYPE(int fpop, (void));
-_PROTOTYPE(void fpush, (int val ));
-_PROTOTYPE(void pop, (void));
-_PROTOTYPE(void push_copy, (bc_num num ));
-_PROTOTYPE(void push_num, (bc_num num ));
-_PROTOTYPE(char check_stack, (int depth ));
-_PROTOTYPE(bc_var *get_var, (int var_name ));
-_PROTOTYPE(bc_num *get_array_num, (int var_index, long index ));
-_PROTOTYPE(void store_var, (int var_name ));
-_PROTOTYPE(void store_array, (int var_name ));
-_PROTOTYPE(void load_var, (int var_name ));
-_PROTOTYPE(void load_array, (int var_name ));
-_PROTOTYPE(void decr_var, (int var_name ));
-_PROTOTYPE(void decr_array, (int var_name ));
-_PROTOTYPE(void incr_var, (int var_name ));
-_PROTOTYPE(void incr_array, (int var_name ));
-_PROTOTYPE(void auto_var, (int name ));
-_PROTOTYPE(void free_a_tree, (bc_array_node *root, int depth ));
-_PROTOTYPE(void pop_vars, (arg_list *list ));
-_PROTOTYPE(void process_params, (program_counter *pc, int func ));
-
-/* For the scanner and parser.... */
-_PROTOTYPE(int yyparse, (void));
-_PROTOTYPE(int yylex, (void));
-
-/* Other things... */
-_PROTOTYPE (int getopt, (int, char * CONST [], CONST char *));
-
diff --git a/gnu/usr.bin/bc/scan.l b/gnu/usr.bin/bc/scan.l
deleted file mode 100644
index 818936410d0d..000000000000
--- a/gnu/usr.bin/bc/scan.l
+++ /dev/null
@@ -1,196 +0,0 @@
-%{
-/* scan.l: the (f)lex description file for the scanner. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-       
-*************************************************************************/
-
-#include "bcdefs.h"
-#include "y.tab.h"
-#include "global.h"
-#include "proto.h"
-
-/* Using flex, we can ask for a smaller input buffer.  With lex, this
-   does nothing! */
-
-#ifdef SMALL_BUF
-#undef YY_READ_BUF_SIZE
-#define YY_READ_BUF_SIZE 512
-#endif
-
-/* We want to define our own yywrap. */
-#undef yywrap
-_PROTOTYPE(int yywrap, (void));
-
-/* MINIX returns from read with < 0 if SIGINT is  encountered.
-   In flex, we can redefine YY_INPUT to the following.  In lex, this
-   does nothing! */
-#include <errno.h>
-#undef  YY_INPUT
-#define YY_INPUT(buf,result,max_size) \
-	while ( (result = read( fileno(yyin), (char *) buf, max_size )) < 0 ) \
-	    if (errno != EINTR) \
-		YY_FATAL_ERROR( "read() in flex scanner failed" );
-
-%}
-DIGIT [0-9A-F]
-LETTER [a-z]
-%%
-define return(Define);
-break  return(Break);
-quit   return(Quit);
-length return(Length);
-return return(Return);
-for    return(For);
-if     return(If);
-while  return(While);
-sqrt   return(Sqrt);
-scale  return(Scale);
-ibase  return(Ibase);
-obase  return(Obase);
-auto   return(Auto);
-else   return(Else);
-read   return(Read);
-halt   return(Halt);
-last   return(Last);
-warranty return(Warranty);
-continue return(Continue);
-print  return(Print);
-limits return(Limits);
-"." {
-#ifdef DOT_IS_LAST
-       return(Last);
-#else
-       yyerror ("illegal character: %s",yytext);
-#endif
-    }
-"+"|"-"|";"|"("|")"|"{"|"}"|"["|"]"|","|"^" { yylval.c_value = yytext[0]; 
-					      return((int)yytext[0]); }
-&& { return(AND); }
-\|\| { return(OR); }
-"!" { return(NOT); }
-"*"|"/"|"%" { yylval.c_value = yytext[0]; return(MUL_OP); }
-"="|\+=|-=|\*=|\/=|%=|\^=  { yylval.c_value = yytext[0]; return(ASSIGN_OP); }
-=\+|=-|=\*|=\/|=%|=\^  { 
-#ifdef OLD_EQ_OP
-			 char warn_save;
-			 warn_save = warn_not_std;
-			 warn_not_std = TRUE;
-			 warn ("Old fashioned =<op>");
-			 warn_not_std = warn_save;
-			 yylval.c_value = yytext[1];
-#else
-			 yylval.c_value = '=';
-			 yyless (1);
-#endif
-			 return(ASSIGN_OP);
-		       }
-==|\<=|\>=|\!=|"<"|">" { yylval.s_value = strcopyof(yytext); return(REL_OP); }
-\+\+|-- { yylval.c_value = yytext[0]; return(INCR_DECR); }
-"\n" { line_no++; return(NEWLINE); }
-\\\n {  line_no++;  /* ignore a "quoted" newline */ }
-[ \t]+  { /* ignore spaces and tabs */ }
-"/*"  {
-	int c;
-
-	for (;;)
-	  {
-	    while ( ((c=input()) != '*') && (c != EOF)) 
-	      /* eat it */
-	      if (c == '\n') line_no++;
-	    if (c == '*')
- 	      {
-		while ( (c=input()) == '*') /* eat it*/;
-		if (c == '/') break; /* at end of comment */
-		if (c == '\n') line_no++;
-	      }
-	    if (c == EOF)
-	      {
-		fprintf (stderr,"EOF encountered in a comment.\n");
-		break;
-	      }
-	  }
-      }
-[a-z][a-z0-9_]* { yylval.s_value = strcopyof(yytext); return(NAME); }
-\"[^\"]*\"  {
- 	      unsigned char *look;
-	      int count = 0;
-	      yylval.s_value = strcopyof(yytext);
-	      for (look = yytext; *look != 0; look++)
-		{
-		  if (*look == '\n') line_no++;
-		  if (*look == '"')  count++;
-		}
-	      if (count != 2) yyerror ("NUL character in string.");
-	      return(STRING);
-	    }
-{DIGIT}({DIGIT}|\\\n)*("."({DIGIT}|\\\n)*)?|"."(\\\n)*{DIGIT}({DIGIT}|\\\n)* {
-	      unsigned char *src, *dst;
-	      int len;
-	      /* remove a trailing decimal point. */
-	      len = strlen(yytext);
-	      if (yytext[len-1] == '.')
-	        yytext[len-1] = 0;
-	      /* remove leading zeros. */
-	      src = yytext;
-	      dst = yytext;
-	      while (*src == '0') src++;
-	      if (*src == 0) src--;
-	      /* Copy strings removing the newlines. */
-	      while (*src != 0)
-		{
-	          if (*src == '\\')
-		    {
-		      src++; src++;
-		      line_no++;
-		    }
-		  else
-		    *dst++ = *src++;
-	        }
-	      *dst = 0;
-	      yylval.s_value = strcopyof(yytext); 
-	      return(NUMBER);
-	    }
-.       {
-	  if (yytext[0] < ' ')
-	    yyerror ("illegal character: ^%c",yytext[0] + '@');
-	  else
-	    if (yytext[0] > '~')
-	      yyerror ("illegal character: \\%3d", (int) yytext[0]);
-	    else
-	      yyerror ("illegal character: %s",yytext);
-	}
-%%
-
-
-
-/* This is the way to get multiple files input into lex. */
-
-int
-yywrap()
-{
-  if (!open_new_file ()) return (1);	/* EOF on standard in. */
-  return (0);				/* We have more input. */
-}
diff --git a/gnu/usr.bin/bc/storage.c b/gnu/usr.bin/bc/storage.c
deleted file mode 100644
index b4ed2706b79c..000000000000
--- a/gnu/usr.bin/bc/storage.c
+++ /dev/null
@@ -1,963 +0,0 @@
-/* storage.c:  Code and data storage manipulations.  This includes labels. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-#include "bcdefs.h"
-#include "global.h"
-#include "proto.h"
-
-
-/* Initialize the storage at the beginning of the run. */
-
-void
-init_storage ()
-{
-
-  /* Functions: we start with none and ask for more. */
-  f_count = 0;
-  more_functions ();
-  f_names[0] = "(main)";
-
-  /* Variables. */
-  v_count = 0;
-  more_variables ();
-
-  /* Arrays. */
-  a_count = 0;
-  more_arrays ();
-
-  /* Other things... */
-  ex_stack = NULL;
-  fn_stack = NULL;
-  i_base = 10;
-  o_base = 10;
-  scale  = 0;
-  c_code = FALSE;
-  init_numbers();
-}
-
-/* Three functions for increasing the number of functions, variables, or
-   arrays that are needed.  This adds another 32 of the requested object. */
-
-void
-more_functions (VOID)
-{
-  int old_count;
-  int indx1, indx2;
-  bc_function *old_f;
-  bc_function *f;
-  char **old_names;
-
-  /* Save old information. */
-  old_count = f_count;
-  old_f = functions;
-  old_names = f_names;
-
-  /* Add a fixed amount and allocate new space. */
-  f_count += STORE_INCR;
-  functions = (bc_function *) bc_malloc (f_count*sizeof (bc_function));
-  f_names = (char **) bc_malloc (f_count*sizeof (char *));
-
-  /* Copy old ones. */
-  for (indx1 = 0; indx1 < old_count; indx1++)
-    {
-      functions[indx1] = old_f[indx1];
-      f_names[indx1] = old_names[indx1];
-    }
-
-  /* Initialize the new ones. */
-  for (; indx1 < f_count; indx1++)
-    {
-      f = &functions[indx1];
-      f->f_defined = FALSE;
-      for (indx2 = 0; indx2 < BC_MAX_SEGS; indx2++)
-	f->f_body [indx2] = NULL;
-      f->f_code_size = 0;
-      f->f_label = NULL;
-      f->f_autos = NULL;
-      f->f_params = NULL;
-    }
-
-  /* Free the old elements. */
-  if (old_count != 0)
-    {
-      free (old_f);
-      free (old_names);
-    }
-}
-
-void
-more_variables ()
-{
-  int indx;
-  int old_count;
-  bc_var **old_var;
-  char **old_names;
-
-  /* Save the old values. */
-  old_count = v_count;
-  old_var = variables;
-  old_names = v_names;
-
-  /* Increment by a fixed amount and allocate. */
-  v_count += STORE_INCR;
-  variables = (bc_var **) bc_malloc (v_count*sizeof(bc_var *));
-  v_names = (char **) bc_malloc (v_count*sizeof(char *));
-
-  /* Copy the old variables. */
-  for (indx = 3; indx < old_count; indx++)
-    variables[indx] = old_var[indx];
-
-  /* Initialize the new elements. */
-  for (; indx < v_count; indx++)
-    variables[indx] = NULL;
-
-  /* Free the old elements. */
-  if (old_count != 0)
-    {
-      free (old_var);
-      free (old_names);
-    }
-}
-
-void
-more_arrays ()
-{
-  int indx;
-  int old_count;
-  bc_var_array **old_ary;
-  char **old_names;
-
-  /* Save the old values. */
-  old_count = a_count;
-  old_ary = arrays;
-  old_names = a_names;
-
-  /* Increment by a fixed amount and allocate. */
-  a_count += STORE_INCR;
-  arrays = (bc_var_array **) bc_malloc (a_count*sizeof(bc_var_array *));
-  a_names = (char **) bc_malloc (a_count*sizeof(char *));
-
-  /* Copy the old arrays. */
-  for (indx = 1; indx < old_count; indx++)
-    arrays[indx] = old_ary[indx];
-
-
-  /* Initialize the new elements. */
-  for (; indx < v_count; indx++)
-    arrays[indx] = NULL;
-
-  /* Free the old elements. */
-  if (old_count != 0)
-    {
-      free (old_ary);
-      free (old_names);
-    }
-}
-
-
-/* clear_func clears out function FUNC and makes it ready to redefine. */
-
-void
-clear_func (func)
-     char func;
-{
-  bc_function *f;
-  int indx;
-  bc_label_group *lg;
-
-  /* Set the pointer to the function. */
-  f = &functions[func];
-  f->f_defined = FALSE;
-
-  /* Clear the code segments. */
-  for (indx = 0; indx < BC_MAX_SEGS; indx++)
-    {
-      if (f->f_body[indx] != NULL)
-	{
-	  free (f->f_body[indx]);
-	  f->f_body[indx] = NULL;
-	}
-    }
-
-  f->f_code_size = 0;
-  if (f->f_autos != NULL)
-    {
-      free_args (f->f_autos);
-      f->f_autos = NULL;
-    }
-  if (f->f_params != NULL)
-    {
-      free_args (f->f_params);
-      f->f_params = NULL;
-    }
-  while (f->f_label != NULL)
-    {
-      lg = f->f_label->l_next;
-      free (f->f_label);
-      f->f_label = lg;
-    }
-}
-
-
-/*  Pop the function execution stack and return the top. */
-
-int
-fpop()
-{
-  fstack_rec *temp;
-  int retval = 0;
-
-  if (fn_stack != NULL)
-    {
-      temp = fn_stack;
-      fn_stack = temp->s_next;
-      retval = temp->s_val;
-      free (temp);
-    }
-  return (retval);
-}
-
-
-/* Push VAL on to the function stack. */
-
-void
-fpush (val)
-     int val;
-{
-  fstack_rec *temp;
-
-  temp = (fstack_rec *) bc_malloc (sizeof (fstack_rec));
-  temp->s_next = fn_stack;
-  temp->s_val = val;
-  fn_stack = temp;
-}
-
-
-/* Pop and discard the top element of the regular execution stack. */
-
-void
-pop ()
-{
-  estack_rec *temp;
-
-  if (ex_stack != NULL)
-    {
-      temp = ex_stack;
-      ex_stack = temp->s_next;
-      free_num (&temp->s_num);
-      free (temp);
-    }
-}
-
-
-/* Push a copy of NUM on to the regular execution stack. */
-
-void
-push_copy (num)
-     bc_num num;
-{
-  estack_rec *temp;
-
-  temp = (estack_rec *) bc_malloc (sizeof (estack_rec));
-  temp->s_num = copy_num (num);
-  temp->s_next = ex_stack;
-  ex_stack = temp;
-}
-
-
-/* Push NUM on to the regular execution stack.  Do NOT push a copy. */
-
-void
-push_num (num)
-     bc_num num;
-{
-  estack_rec *temp;
-
-  temp = (estack_rec *) bc_malloc (sizeof (estack_rec));
-  temp->s_num = num;
-  temp->s_next = ex_stack;
-  ex_stack = temp;
-}
-
-
-/* Make sure the ex_stack has at least DEPTH elements on it.
-   Return TRUE if it has at least DEPTH elements, otherwise
-   return FALSE. */
-
-char
-check_stack (depth)
-     int depth;
-{
-  estack_rec *temp;
-
-  temp = ex_stack;
-  while ((temp != NULL) && (depth > 0))
-    {
-      temp = temp->s_next;
-      depth--;
-    }
-  if (depth > 0)
-    {
-      rt_error ("Stack error.");
-      return FALSE;
-    }
-  return TRUE;
-}
-
-
-/* The following routines manipulate simple variables and
-   array variables. */
-
-/* get_var returns a pointer to the variable VAR_NAME.  If one does not
-   exist, one is created. */
-
-bc_var *
-get_var (var_name)
-     int var_name;
-{
-  bc_var *var_ptr;
-
-  var_ptr = variables[var_name];
-  if (var_ptr == NULL)
-    {
-      var_ptr = variables[var_name] = (bc_var *) bc_malloc (sizeof (bc_var));
-      init_num (&var_ptr->v_value);
-    }
-  return var_ptr;
-}
-
-
-/* get_array_num returns the address of the bc_num in the array
-   structure.  If more structure is requried to get to the index,
-   this routine does the work to create that structure. VAR_INDEX
-   is a zero based index into the arrays storage array. INDEX is
-   the index into the bc array. */
-
-bc_num *
-get_array_num (var_index, index)
-     int var_index;
-     long  index;
-{
-  bc_var_array *ary_ptr;
-  bc_array *a_var;
-  bc_array_node *temp;
-  int log, ix, ix1;
-  int sub [NODE_DEPTH];
-
-  /* Get the array entry. */
-  ary_ptr = arrays[var_index];
-  if (ary_ptr == NULL)
-    {
-      ary_ptr = arrays[var_index] =
-	(bc_var_array *) bc_malloc (sizeof (bc_var_array));
-      ary_ptr->a_value = NULL;
-      ary_ptr->a_next = NULL;
-      ary_ptr->a_param = FALSE;
-    }
-
-  a_var = ary_ptr->a_value;
-  if (a_var == NULL) {
-    a_var = ary_ptr->a_value = (bc_array *) bc_malloc (sizeof (bc_array));
-    a_var->a_tree = NULL;
-    a_var->a_depth = 0;
-  }
-
-  /* Get the index variable. */
-  sub[0] = index & NODE_MASK;
-  ix = index >> NODE_SHIFT;
-  log = 1;
-  while (ix > 0 || log < a_var->a_depth)
-    {
-      sub[log] = ix & NODE_MASK;
-      ix >>= NODE_SHIFT;
-      log++;
-    }
-
-  /* Build any tree that is necessary. */
-  while (log > a_var->a_depth)
-    {
-      temp = (bc_array_node *) bc_malloc (sizeof(bc_array_node));
-      if (a_var->a_depth != 0)
-	{
-	  temp->n_items.n_down[0] = a_var->a_tree;
-	  for (ix=1; ix < NODE_SIZE; ix++)
-	    temp->n_items.n_down[ix] = NULL;
-	}
-      else
-	{
-	  for (ix=0; ix < NODE_SIZE; ix++)
-	    temp->n_items.n_num[ix] = copy_num(_zero_);
-	}
-      a_var->a_tree = temp;
-      a_var->a_depth++;
-    }
-
-  /* Find the indexed variable. */
-  temp = a_var->a_tree;
-  while ( log-- > 1)
-    {
-      ix1 = sub[log];
-      if (temp->n_items.n_down[ix1] == NULL)
-	{
-	  temp->n_items.n_down[ix1] =
-	    (bc_array_node *) bc_malloc (sizeof(bc_array_node));
-	  temp = temp->n_items.n_down[ix1];
-	  if (log > 1)
-	    for (ix=0; ix < NODE_SIZE; ix++)
-	      temp->n_items.n_down[ix] = NULL;
-	  else
-	    for (ix=0; ix < NODE_SIZE; ix++)
-	      temp->n_items.n_num[ix] = copy_num(_zero_);
-	}
-      else
-	temp = temp->n_items.n_down[ix1];
-    }
-
-  /* Return the address of the indexed variable. */
-  return &(temp->n_items.n_num[sub[0]]);
-}
-
-
-/* Store the top of the execution stack into VAR_NAME.
-   This includes the special variables ibase, obase, and scale. */
-
-void
-store_var (var_name)
-     int var_name;
-{
-  bc_var *var_ptr;
-  long temp = 0;
-  char toobig;
-
-  if (var_name > 2)
-    {
-      /* It is a simple variable. */
-      var_ptr = get_var (var_name);
-      if (var_ptr != NULL)
-	{
-	  free_num(&var_ptr->v_value);
-	  var_ptr->v_value = copy_num (ex_stack->s_num);
-	}
-    }
-  else
-    {
-      /* It is a special variable... */
-      toobig = FALSE;
-      if (is_neg (ex_stack->s_num))
-	{
-	  switch (var_name)
-	    {
-	    case 0:
-	      rt_warn ("negative ibase, set to 2");
-	      temp = 2;
-	      break;
-	    case 1:
-	      rt_warn ("negative obase, set to 2");
-	      temp = 2;
-	      break;
-	    case 2:
-	      rt_warn ("negative scale, set to 0");
-	      temp = 0;
-	      break;
-	    }
-	}
-      else
-	{
-	  temp = num2long (ex_stack->s_num);
-	  if (!is_zero (ex_stack->s_num) && temp == 0)
-	    toobig = TRUE;
-	}
-      switch (var_name)
-	{
-	case 0:
-	  if (temp < 2 && !toobig)
-	    {
-	      i_base = 2;
-	      rt_warn ("ibase too small, set to 2");
-	    }
-	  else
-	    if (temp > 16 || toobig)
-	      {
-		i_base = 16;
-		rt_warn ("ibase too large, set to 16");
-	      }
-	    else
-	      i_base = (int) temp;
-	  break;
-
-	case 1:
-	  if (temp < 2 && !toobig)
-	    {
-	      o_base = 2;
-	      rt_warn ("obase too small, set to 2");
-	    }
-	  else
-	    if (temp > BC_BASE_MAX || toobig)
-	      {
-		o_base = BC_BASE_MAX;
-		rt_warn ("obase too large, set to %d", BC_BASE_MAX);
-	      }
-	    else
-	      o_base = (int) temp;
-	  break;
-
-	case 2:
-	  /*  WARNING:  The following if statement may generate a compiler
-	      warning if INT_MAX == LONG_MAX.  This is NOT a problem. */
-	  if (temp > BC_SCALE_MAX || toobig )
-	    {
-	      scale = BC_SCALE_MAX;
-	      rt_warn ("scale too large, set to %d", BC_SCALE_MAX);
-	    }
-	  else
-	    scale = (int) temp;
-	}
-    }
-}
-
-
-/* Store the top of the execution stack into array VAR_NAME.
-   VAR_NAME is the name of an array, and the next to the top
-   of stack for the index into the array. */
-
-void
-store_array (var_name)
-     int var_name;
-{
-  bc_num *num_ptr;
-  long index;
-
-  if (!check_stack(2)) return;
-  index = num2long (ex_stack->s_next->s_num);
-  if (index < 0 || index > BC_DIM_MAX ||
-      (index == 0 && !is_zero(ex_stack->s_next->s_num)))
-    rt_error ("Array %s subscript out of bounds.", a_names[var_name]);
-  else
-    {
-      num_ptr = get_array_num (var_name, index);
-      if (num_ptr != NULL)
-	{
-	  free_num (num_ptr);
-	  *num_ptr = copy_num (ex_stack->s_num);
-	  free_num (&ex_stack->s_next->s_num);
-	  ex_stack->s_next->s_num = ex_stack->s_num;
-	  init_num (&ex_stack->s_num);
-	  pop();
-	}
-    }
-}
-
-
-/*  Load a copy of VAR_NAME on to the execution stack.  This includes
-    the special variables ibase, obase and scale.  */
-
-void
-load_var (var_name)
-     int var_name;
-{
-  bc_var *var_ptr;
-
-  switch (var_name)
-    {
-
-    case 0:
-      /* Special variable ibase. */
-      push_copy (_zero_);
-      int2num (&ex_stack->s_num, i_base);
-      break;
-
-    case 1:
-      /* Special variable obase. */
-      push_copy (_zero_);
-      int2num (&ex_stack->s_num, o_base);
-      break;
-
-    case 2:
-      /* Special variable scale. */
-      push_copy (_zero_);
-      int2num (&ex_stack->s_num, scale);
-      break;
-
-    default:
-      /* It is a simple variable. */
-      var_ptr = variables[var_name];
-      if (var_ptr != NULL)
-	push_copy (var_ptr->v_value);
-      else
-	push_copy (_zero_);
-    }
-}
-
-
-/*  Load a copy of VAR_NAME on to the execution stack.  This includes
-    the special variables ibase, obase and scale.  */
-
-void
-load_array (var_name)
-     int var_name;
-{
-  bc_num *num_ptr;
-  long   index;
-
-  if (!check_stack(1)) return;
-  index = num2long (ex_stack->s_num);
-  if (index < 0 || index > BC_DIM_MAX ||
-     (index == 0 && !is_zero(ex_stack->s_num)))
-    rt_error ("Array %s subscript out of bounds.", a_names[var_name]);
-  else
-    {
-      num_ptr = get_array_num (var_name, index);
-      if (num_ptr != NULL)
-	{
-	  pop();
-	  push_copy (*num_ptr);
-	}
-    }
-}
-
-
-/* Decrement VAR_NAME by one.  This includes the special variables
-   ibase, obase, and scale. */
-
-void
-decr_var (var_name)
-     int var_name;
-{
-  bc_var *var_ptr;
-
-  switch (var_name)
-    {
-
-    case 0: /* ibase */
-      if (i_base > 2)
-	i_base--;
-      else
-	rt_warn ("ibase too small in --");
-      break;
-
-    case 1: /* obase */
-      if (o_base > 2)
-	o_base--;
-      else
-	rt_warn ("obase too small in --");
-      break;
-
-    case 2: /* scale */
-      if (scale > 0)
-	scale--;
-      else
-	rt_warn ("scale can not be negative in -- ");
-      break;
-
-    default: /* It is a simple variable. */
-      var_ptr = get_var (var_name);
-      if (var_ptr != NULL)
-	bc_sub (var_ptr->v_value,_one_,&var_ptr->v_value);
-    }
-}
-
-
-/* Decrement VAR_NAME by one.  VAR_NAME is an array, and the top of
-   the execution stack is the index and it is popped off the stack. */
-
-void
-decr_array (var_name)
-     char var_name;
-{
-  bc_num *num_ptr;
-  long   index;
-
-  /* It is an array variable. */
-  if (!check_stack (1)) return;
-  index = num2long (ex_stack->s_num);
-  if (index < 0 || index > BC_DIM_MAX ||
-     (index == 0 && !is_zero (ex_stack->s_num)))
-    rt_error ("Array %s subscript out of bounds.", a_names[var_name]);
-  else
-    {
-      num_ptr = get_array_num (var_name, index);
-      if (num_ptr != NULL)
-	{
-	  pop ();
-	  bc_sub (*num_ptr, _one_, num_ptr);
-	}
-    }
-}
-
-
-/* Increment VAR_NAME by one.  This includes the special variables
-   ibase, obase, and scale. */
-
-void
-incr_var (var_name)
-     int var_name;
-{
-  bc_var *var_ptr;
-
-  switch (var_name)
-    {
-
-    case 0: /* ibase */
-      if (i_base < 16)
-	i_base++;
-      else
-	rt_warn ("ibase too big in ++");
-      break;
-
-    case 1: /* obase */
-      if (o_base < BC_BASE_MAX)
-	o_base++;
-      else
-	rt_warn ("obase too big in ++");
-      break;
-
-    case 2:
-      if (scale < BC_SCALE_MAX)
-	scale++;
-      else
-	rt_warn ("Scale too big in ++");
-      break;
-
-    default:  /* It is a simple variable. */
-      var_ptr = get_var (var_name);
-      if (var_ptr != NULL)
-	bc_add (var_ptr->v_value, _one_, &var_ptr->v_value);
-
-    }
-}
-
-
-/* Increment VAR_NAME by one.  VAR_NAME is an array and top of
-   execution stack is the index and is popped off the stack. */
-
-void
-incr_array (var_name)
-     int var_name;
-{
-  bc_num *num_ptr;
-  long   index;
-
-  if (!check_stack (1)) return;
-  index = num2long (ex_stack->s_num);
-  if (index < 0 || index > BC_DIM_MAX ||
-      (index == 0 && !is_zero (ex_stack->s_num)))
-    rt_error ("Array %s subscript out of bounds.", a_names[var_name]);
-  else
-    {
-      num_ptr = get_array_num (var_name, index);
-      if (num_ptr != NULL)
-	{
-	  pop ();
-	  bc_add (*num_ptr, _one_, num_ptr);
-	}
-    }
-}
-
-
-/* Routines for processing autos variables and parameters. */
-
-/* NAME is an auto variable that needs to be pushed on its stack. */
-
-void
-auto_var (name)
-     int name;
-{
-  bc_var *v_temp;
-  bc_var_array *a_temp;
-  int ix;
-
-  if (name > 0)
-    {
-      /* A simple variable. */
-      ix = name;
-      v_temp = (bc_var *) bc_malloc (sizeof (bc_var));
-      v_temp->v_next = variables[ix];
-      init_num (&v_temp->v_value);
-      variables[ix] = v_temp;
-    }
-  else
-    {
-      /* An array variable. */
-      ix = -name;
-      a_temp = (bc_var_array *) bc_malloc (sizeof (bc_var_array));
-      a_temp->a_next = arrays[ix];
-      a_temp->a_value = NULL;
-      a_temp->a_param = FALSE;
-      arrays[ix] = a_temp;
-    }
-}
-
-
-/* Free_a_tree frees everything associated with an array variable tree.
-   This is used when popping an array variable off its auto stack.  */
-
-void
-free_a_tree ( root, depth )
-     bc_array_node *root;
-     int depth;
-{
-  int ix;
-
-  if (root != NULL)
-    {
-      if (depth > 1)
-	for (ix = 0; ix < NODE_SIZE; ix++)
-	  free_a_tree (root->n_items.n_down[ix], depth-1);
-      else
-	for (ix = 0; ix < NODE_SIZE; ix++)
-	  free_num ( &(root->n_items.n_num[ix]));
-      free (root);
-    }
-}
-
-
-/* LIST is an NULL terminated list of varible names that need to be
-   popped off their auto stacks. */
-
-void
-pop_vars (list)
-     arg_list *list;
-{
-  bc_var *v_temp;
-  bc_var_array *a_temp;
-  int    ix;
-
-  while (list != NULL)
-    {
-      ix = list->av_name;
-      if (ix > 0)
-	{
-	  /* A simple variable. */
-	  v_temp = variables[ix];
-	  if (v_temp != NULL)
-	    {
-	      variables[ix] = v_temp->v_next;
-	      free_num (&v_temp->v_value);
-	      free (v_temp);
-	    }
-	}
-      else
-	{
-	  /* An array variable. */
-	  ix = -ix;
-	  a_temp = arrays[ix];
-	  if (a_temp != NULL)
-	    {
-	      arrays[ix] = a_temp->a_next;
-	      if (!a_temp->a_param && a_temp->a_value != NULL)
-		{
-		  free_a_tree (a_temp->a_value->a_tree,
-			       a_temp->a_value->a_depth);
-		  free (a_temp->a_value);
-		}
-	      free (a_temp);
-	    }
-	}
-      list = list->next;
-    }
-}
-
-
-/* A call is being made to FUNC.  The call types are at PC.  Process
-   the parameters by doing an auto on the parameter variable and then
-   store the value at the new variable or put a pointer the the array
-   variable. */
-
-void
-process_params (pc, func)
-     program_counter *pc;
-     int func;
-{
-  char ch;
-  arg_list *params;
-  int ix, ix1;
-  bc_var *v_temp;
-  bc_var_array *a_src, *a_dest;
-  bc_num *n_temp;
-
-  /* Get the parameter names from the function. */
-  params = functions[func].f_params;
-
-  while ((ch = byte(pc)) != ':')
-    {
-      if (params != NULL)
-	{
-	  if ((ch == '0') && params->av_name > 0)
-	    {
-	      /* A simple variable. */
-	      ix = params->av_name;
-	      v_temp = (bc_var *) bc_malloc (sizeof(bc_var));
-	      v_temp->v_next = variables[ix];
-	      v_temp->v_value = ex_stack->s_num;
-	      init_num (&ex_stack->s_num);
-	      variables[ix] = v_temp;
-	    }
-	  else
-	    if ((ch == '1') && (params->av_name < 0))
-	      {
-		/* The variables is an array variable. */
-
-		/* Compute source index and make sure some structure exists. */
-		ix = (int) num2long (ex_stack->s_num);
-		n_temp = get_array_num (ix, 0);
-
-		/* Push a new array and Compute Destination index */
-		auto_var (params->av_name);
-		ix1 = -params->av_name;
-
-		/* Set up the correct pointers in the structure. */
-		if (ix == ix1)
-		  a_src = arrays[ix]->a_next;
-		else
-		  a_src = arrays[ix];
-		a_dest = arrays[ix1];
-		a_dest->a_param = TRUE;
-		a_dest->a_value = a_src->a_value;
-	      }
-	    else
-	      {
-		if (params->av_name < 0)
-		  rt_error ("Parameter type mismatch parameter %s.",
-			    a_names[-params->av_name]);
-		else
-		  rt_error ("Parameter type mismatch, parameter %s.",
-			    v_names[params->av_name]);
-		params++;
-	      }
-	  pop ();
-	}
-      else
-	{
-	    rt_error ("Parameter number mismatch");
-	    return;
-	}
-      params = params->next;
-    }
-  if (params != NULL)
-    rt_error ("Parameter number mismatch");
-}
diff --git a/gnu/usr.bin/bc/util.c b/gnu/usr.bin/bc/util.c
deleted file mode 100644
index fe7315af511e..000000000000
--- a/gnu/usr.bin/bc/util.c
+++ /dev/null
@@ -1,820 +0,0 @@
-/* util.c: Utility routines for bc. */
-
-/*  This file is part of bc written for MINIX.
-    Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License , or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; see the file COPYING.  If not, write to
-    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    You may contact the author by:
-       e-mail:  phil@cs.wwu.edu
-      us-mail:  Philip A. Nelson
-                Computer Science Department, 9062
-                Western Washington University
-                Bellingham, WA 98226-9062
-
-*************************************************************************/
-
-
-#include "bcdefs.h"
-#ifndef VARARGS
-#include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
-#include "global.h"
-#include "proto.h"
-
-
-/* strcopyof mallocs new memory and copies a string to to the new
-   memory. */
-
-char *
-strcopyof (str)
-     char *str;
-{
-  char *temp;
-
-  temp = (char *) bc_malloc (strlen (str)+1);
-  return (strcpy (temp,str));
-}
-
-
-/* nextarg adds another value to the list of arguments. */
-
-arg_list *
-nextarg (args, val)
-     arg_list *args;
-     int val;
-{ arg_list *temp;
-
-  temp = (arg_list *) bc_malloc (sizeof (arg_list));
-  temp->av_name = val;
-  temp->next = args;
-
-  return (temp);
-}
-
-
-/* For generate, we must produce a string in the form
-    "val,val,...,val".  We also need a couple of static variables
-   for retaining old generated strings.  It also uses a recursive
-   function that builds the string. */
-
-static char *arglist1 = NULL, *arglist2 = NULL;
-
-
-/* make_arg_str does the actual construction of the argument string.
-   ARGS is the pointer to the list and LEN is the maximum number of
-   characters needed.  1 char is the minimum needed.
- */
-
-_PROTOTYPE (static char *make_arg_str, (arg_list *args, int len));
-
-static char *
-make_arg_str (args, len)
-      arg_list *args;
-      int len;
-{
-  char *temp;
-  char sval[20];
-
-  /* Recursive call. */
-  if (args != NULL)
-    temp = make_arg_str (args->next, len+11);
-  else
-    {
-      temp = (char *) bc_malloc (len);
-      *temp = 0;
-      return temp;
-    }
-
-  /* Add the current number to the end of the string. */
-  if (len != 1)
-    sprintf (sval, "%d,", args->av_name);
-  else
-    sprintf (sval, "%d", args->av_name);
-  temp = strcat (temp, sval);
-  return (temp);
-}
-
-char *
-arg_str (args)
-     arg_list *args;
-{
-  if (arglist2 != NULL)
-    free (arglist2);
-  arglist2 = arglist1;
-  arglist1 = make_arg_str (args, 1);
-  return (arglist1);
-}
-
-char *
-call_str (args)
-     arg_list *args;
-{
-  arg_list *temp;
-  int       arg_count;
-  int       ix;
-
-  if (arglist2 != NULL)
-    free (arglist2);
-  arglist2 = arglist1;
-
-  /* Count the number of args and add the 0's and 1's. */
-  for (temp = args, arg_count = 0; temp != NULL; temp = temp->next)
-    arg_count++;
-  arglist1 = (char *) bc_malloc(arg_count+1);
-  for (temp = args, ix=0; temp != NULL; temp = temp->next)
-    arglist1[ix++] = ( temp->av_name ? '1' : '0');
-  arglist1[ix] = 0;
-
-  return (arglist1);
-}
-
-/* free_args frees an argument list ARGS. */
-
-void
-free_args (args)
-      arg_list *args;
-{
-  arg_list *temp;
-
-  temp = args;
-  while (temp != NULL)
-    {
-      args = args->next;
-      free (temp);
-      temp = args;
-    }
-}
-
-
-/* Check for valid parameter (PARAMS) and auto (AUTOS) lists.
-   There must be no duplicates any where.  Also, this is where
-   warnings are generated for array parameters. */
-
-void
-check_params ( params, autos )
-     arg_list *params, *autos;
-{
-  arg_list *tmp1, *tmp2;
-
-  /* Check for duplicate parameters. */
-  if (params != NULL)
-    {
-      tmp1 = params;
-      while (tmp1 != NULL)
-	{
-	  tmp2 = tmp1->next;
-	  while (tmp2 != NULL)
-	    {
-	      if (tmp2->av_name == tmp1->av_name)
-		yyerror ("duplicate parameter names");
-	      tmp2 = tmp2->next;
-	    }
-	  if (tmp1->av_name < 0)
-	    warn ("Array parameter");
-	  tmp1 = tmp1->next;
-	}
-    }
-
-  /* Check for duplicate autos. */
-  if (autos != NULL)
-    {
-      tmp1 = autos;
-      while (tmp1 != NULL)
-	{
-	  tmp2 = tmp1->next;
-	  while (tmp2 != NULL)
-	    {
-	      if (tmp2->av_name == tmp1->av_name)
-		yyerror ("duplicate auto variable names");
-	      tmp2 = tmp2->next;
-	    }
-	  tmp1 = tmp1->next;
-	}
-    }
-
-  /* Check for duplicate between parameters and autos. */
-  if ((params != NULL) && (autos != NULL))
-    {
-      tmp1 = params;
-      while (tmp1 != NULL)
-	{
-	  tmp2 = autos;
-	  while (tmp2 != NULL)
-	    {
-	      if (tmp2->av_name == tmp1->av_name)
-		yyerror ("variable in both parameter and auto lists");
-	      tmp2 = tmp2->next;
-	    }
-	  tmp1 = tmp1->next;
-	}
-    }
-}
-
-
-/* Initialize the code generator the parser. */
-
-void
-init_gen ()
-{
-  /* Get things ready. */
-  break_label = 0;
-  continue_label = 0;
-  next_label  = 1;
-  out_count = 2;
-  if (compile_only)
-    printf ("@i");
-  else
-    init_load ();
-  had_error = FALSE;
-  did_gen = FALSE;
-}
-
-
-/* generate code STR for the machine. */
-
-void
-generate (str)
-      char *str;
-{
-  did_gen = TRUE;
-  if (compile_only)
-    {
-      printf ("%s",str);
-      out_count += strlen(str);
-      if (out_count > 60)
-	{
-	  printf ("\n");
-	  out_count = 0;
-	}
-    }
-  else
-    load_code (str);
-}
-
-
-/* Execute the current code as loaded. */
-
-void
-run_code()
-{
-  /* If no compile errors run the current code. */
-  if (!had_error && did_gen)
-    {
-      if (compile_only)
-	{
-	  printf ("@r\n");
-	  out_count = 0;
-	}
-      else
-	execute ();
-    }
-
-  /* Reinitialize the code generation and machine. */
-  if (did_gen)
-    init_gen();
-  else
-    had_error = FALSE;
-}
-
-
-/* Output routines: Write a character CH to the standard output.
-   It keeps track of the number of characters output and may
-   break the output with a "\<cr>". */
-
-void
-out_char (ch)
-     char ch;
-{
-  if (ch == '\n')
-    {
-      out_col = 0;
-      putchar ('\n');
-    }
-  else
-    {
-      out_col++;
-      if (out_col == 70)
-	{
-	  putchar ('\\');
-	  putchar ('\n');
-	  out_col = 1;
-	}
-      putchar (ch);
-    }
-}
-
-
-/* The following are "Symbol Table" routines for the parser. */
-
-/*  find_id returns a pointer to node in TREE that has the correct
-    ID.  If there is no node in TREE with ID, NULL is returned. */
-
-id_rec *
-find_id (tree, id)
-     id_rec *tree;
-     char   *id;
-{
-  int cmp_result;
-
-  /* Check for an empty tree. */
-  if (tree == NULL)
-    return NULL;
-
-  /* Recursively search the tree. */
-  cmp_result = strcmp (id, tree->id);
-  if (cmp_result == 0)
-    return tree;  /* This is the item. */
-  else if (cmp_result < 0)
-    return find_id (tree->left, id);
-  else
-    return find_id (tree->right, id);
-}
-
-
-/* insert_id_rec inserts a NEW_ID rec into the tree whose ROOT is
-   provided.  insert_id_rec returns TRUE if the tree height from
-   ROOT down is increased otherwise it returns FALSE.  This is a
-   recursive balanced binary tree insertion algorithm. */
-
-int insert_id_rec (root, new_id)
-     id_rec **root;
-     id_rec *new_id;
-{
-  id_rec *A, *B;
-
-  /* If root is NULL, this where it is to be inserted. */
-  if (*root == NULL)
-    {
-      *root = new_id;
-      new_id->left = NULL;
-      new_id->right = NULL;
-      new_id->balance = 0;
-      return (TRUE);
-    }
-
-  /* We need to search for a leaf. */
-  if (strcmp (new_id->id, (*root)->id) < 0)
-    {
-      /* Insert it on the left. */
-      if (insert_id_rec (&((*root)->left), new_id))
-	{
-	  /* The height increased. */
-	  (*root)->balance --;
-
-      switch ((*root)->balance)
-	{
-	case  0:  /* no height increase. */
-	  return (FALSE);
-	case -1:  /* height increase. */
-	  return (FALSE);
-	case -2:  /* we need to do a rebalancing act. */
-	  A = *root;
-	  B = (*root)->left;
-	  if (B->balance <= 0)
-	    {
-	      /* Single Rotate. */
-	      A->left = B->right;
-	      B->right = A;
-	      *root = B;
-	      A->balance = 0;
-	      B->balance = 0;
-	    }
-	  else
-	    {
-	      /* Double Rotate. */
-	      *root = B->right;
-	      B->right = (*root)->left;
-	      A->left = (*root)->right;
-	      (*root)->left = B;
-	      (*root)->right = A;
-	      switch ((*root)->balance)
-		{
-		case -1:
-		  A->balance = 1;
-		  B->balance = 0;
-		  break;
-		case  0:
-		  A->balance = 0;
-		  B->balance = 0;
-		  break;
-		case  1:
-		  A->balance = 0;
-		  B->balance = -1;
-		  break;
-		}
-	      (*root)->balance = 0;
-	    }
-	}
-	}
-    }
-  else
-    {
-      /* Insert it on the right. */
-      if (insert_id_rec (&((*root)->right), new_id))
-	{
-	  /* The height increased. */
-	  (*root)->balance ++;
-	  switch ((*root)->balance)
-	    {
-	    case 0:  /* no height increase. */
-	      return (FALSE);
-	    case 1:  /* height increase. */
-	      return (FALSE);
-	    case 2:  /* we need to do a rebalancing act. */
-	      A = *root;
-	      B = (*root)->right;
-	      if (B->balance >= 0)
-		{
-		  /* Single Rotate. */
-		  A->right = B->left;
-		  B->left = A;
-		  *root = B;
-		  A->balance = 0;
-		  B->balance = 0;
-		}
-	      else
-		{
-		  /* Double Rotate. */
-		  *root = B->left;
-		  B->left = (*root)->right;
-		  A->right = (*root)->left;
-		  (*root)->left = A;
-		  (*root)->right = B;
-		  switch ((*root)->balance)
-		    {
-		    case -1:
-		      A->balance = 0;
-		      B->balance = 1;
-		      break;
-		    case  0:
-		      A->balance = 0;
-		      B->balance = 0;
-		      break;
-		    case  1:
-		      A->balance = -1;
-		      B->balance = 0;
-		      break;
-		    }
-		  (*root)->balance = 0;
-		}
-	    }
-	}
-    }
-
-  /* If we fall through to here, the tree did not grow in height. */
-  return (FALSE);
-}
-
-
-/* Initialize variables for the symbol table tree. */
-
-void
-init_tree()
-{
-  name_tree  = NULL;
-  next_array = 1;
-  next_func  = 1;
-  next_var   = 4;  /* 0 => ibase, 1 => obase, 2 => scale, 3 => last. */
-}
-
-
-/* Lookup routines for symbol table names. */
-
-int
-lookup (name, namekind)
-     char *name;
-     int  namekind;
-{
-  id_rec *id;
-
-  /* Warn about non-standard name. */
-  if (strlen(name) != 1)
-    warn ("multiple letter name - %s", name);
-
-  /* Look for the id. */
-  id = find_id (name_tree, name);
-  if (id == NULL)
-    {
-      /* We need to make a new item. */
-      id = (id_rec *) bc_malloc (sizeof (id_rec));
-      id->id = strcopyof (name);
-      id->a_name = 0;
-      id->f_name = 0;
-      id->v_name = 0;
-      insert_id_rec (&name_tree, id);
-    }
-
-  /* Return the correct value. */
-  switch (namekind)
-    {
-
-    case ARRAY:
-      /* ARRAY variable numbers are returned as negative numbers. */
-      if (id->a_name != 0)
-	{
-	  free (name);
-	  return (-id->a_name);
-	}
-      id->a_name = next_array++;
-      a_names[id->a_name] = name;
-      if (id->a_name < MAX_STORE)
-	{
-	  if (id->a_name >= a_count)
-	    more_arrays ();
-	  return (-id->a_name);
-	}
-      yyerror ("Too many array variables");
-      exit (1);
-
-    case FUNCT:
-    case FUNCTDEF:
-      if (id->f_name != 0)
-	{
-	  free(name);
-	  /* Check to see if we are redefining a math lib function. */
-	  if (use_math && namekind == FUNCTDEF && id->f_name <= 6)
-	    id->f_name = next_func++;
-	  return (id->f_name);
-	}
-      id->f_name = next_func++;
-      f_names[id->f_name] = name;
-      if (id->f_name < MAX_STORE)
-	{
-	  if (id->f_name >= f_count)
-	    more_functions ();
-	  return (id->f_name);
-	}
-      yyerror ("Too many functions");
-      exit (1);
-
-    case SIMPLE:
-      if (id->v_name != 0)
-	{
-	  free(name);
-	  return (id->v_name);
-	}
-      id->v_name = next_var++;
-      v_names[id->v_name - 1] = name;
-      if (id->v_name <= MAX_STORE)
-	{
-	  if (id->v_name >= v_count)
-	    more_variables ();
-	  return (id->v_name);
-	}
-      yyerror ("Too many variables");
-      exit (1);
-    }
-
-  return (0); /* NOT_REACHED */
-}
-
-
-/* Print the welcome banner. */
-
-void
-welcome()
-{
-  printf ("This is free software with ABSOLUTELY NO WARRANTY.\n");
-  printf ("For details type `warranty'. \n");
-}
-
-
-/* Print out the warranty information. */
-
-void
-warranty(prefix)
-     char *prefix;
-{
-  printf ("\n%s%s\n\n", prefix, BC_VERSION);
-  printf ("%s%s%s%s%s%s%s%s%s%s%s",
-"    This program is free software; you can redistribute it and/or modify\n",
-"    it under the terms of the GNU General Public License as published by\n",
-"    the Free Software Foundation; either version 2 of the License , or\n",
-"    (at your option) any later version.\n\n",
-"    This program is distributed in the hope that it will be useful,\n",
-"    but WITHOUT ANY WARRANTY; without even the implied warranty of\n",
-"    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n",
-"    GNU General Public License for more details.\n\n",
-"    You should have received a copy of the GNU General Public License\n",
-"    along with this program. If not, write to the Free Software\n",
-"    Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.\n\n");
-}
-
-/* Print out the limits of this program. */
-
-void
-limits()
-{
-  printf ("BC_BASE_MAX     = %d\n",  BC_BASE_MAX);
-  printf ("BC_DIM_MAX      = %ld\n", (long) BC_DIM_MAX);
-  printf ("BC_SCALE_MAX    = %d\n",  BC_SCALE_MAX);
-  printf ("BC_STRING_MAX   = %d\n",  BC_STRING_MAX);
-  printf ("MAX Exponent    = %ld\n", (long) LONG_MAX);
-  printf ("MAX code        = %ld\n", (long) BC_MAX_SEGS * (long) BC_SEG_SIZE);
-  printf ("multiply digits = %ld\n", (long) LONG_MAX / (long) 90);
-  printf ("Number of vars  = %ld\n", (long) MAX_STORE);
-#ifdef OLD_EQ_OP
-  printf ("Old assignment operatiors are valid. (=-, =+, ...)\n");
-#endif
-}
-
-/* bc_malloc will check the return value so all other places do not
-   have to do it!  SIZE is the number of types to allocate. */
-
-char *
-bc_malloc (size)
-     int size;
-{
-  char *ptr;
-
-  ptr = (char *) malloc (size);
-  if (ptr == NULL)
-    out_of_memory ();
-
-  return ptr;
-}
-
-
-/* The following routines are error routines for various problems. */
-
-/* Malloc could not get enought memory. */
-
-void
-out_of_memory()
-{
-  fprintf (stderr, "Fatal error: Out of memory for malloc.\n");
-  exit (1);
-}
-
-
-
-/* The standard yyerror routine.  Built with variable number of argumnets. */
-
-#ifndef VARARGS
-#ifdef __STDC__
-void
-yyerror (char *str, ...)
-#else
-void
-yyerror (str)
-     char *str;
-#endif
-#else
-void
-yyerror (str, va_alist)
-     char *str;
-#endif
-{
-  char *name;
-  va_list args;
-
-#ifndef VARARGS
-   va_start (args, str);
-#else
-   va_start (args);
-#endif
-  if (is_std_in)
-    name = "(standard_in)";
-  else
-    name = g_argv[optind-1];
-  fprintf (stderr,"%s %d: ",name,line_no);
-  vfprintf (stderr, str, args);
-  fprintf (stderr, "\n");
-  had_error = TRUE;
-  va_end (args);
-}
-
-
-/* The routine to produce warnings about non-standard features
-   found during parsing. */
-
-#ifndef VARARGS
-#ifdef __STDC__
-void
-warn (char *mesg, ...)
-#else
-void
-warn (mesg)
-     char *mesg;
-#endif
-#else
-void
-warn (mesg, va_alist)
-     char *mesg;
-#endif
-{
-  char *name;
-  va_list args;
-
-#ifndef VARARGS
-  va_start (args, mesg);
-#else
-  va_start (args);
-#endif
-  if (std_only)
-    {
-      if (is_std_in)
-	name = "(standard_in)";
-      else
-	name = g_argv[optind-1];
-      fprintf (stderr,"%s %d: ",name,line_no);
-      vfprintf (stderr, mesg, args);
-      fprintf (stderr, "\n");
-      had_error = TRUE;
-    }
-  else
-    if (warn_not_std)
-      {
-	if (is_std_in)
-	  name = "(standard_in)";
-	else
-	  name = g_argv[optind-1];
-	fprintf (stderr,"%s %d: (Warning) ",name,line_no);
-	vfprintf (stderr, mesg, args);
-	fprintf (stderr, "\n");
-      }
-  va_end (args);
-}
-
-/* Runtime error will  print a message and stop the machine. */
-
-#ifndef VARARGS
-#ifdef __STDC__
-void
-rt_error (char *mesg, ...)
-#else
-void
-rt_error (mesg)
-     char *mesg;
-#endif
-#else
-void
-rt_error (mesg, va_alist)
-     char *mesg;
-#endif
-{
-  va_list args;
-  char error_mesg [255];
-
-#ifndef VARARGS
-  va_start (args, mesg);
-#else
-  va_start (args);
-#endif
-  vsprintf (error_mesg, mesg, args);
-  va_end (args);
-
-  fprintf (stderr, "Runtime error (func=%s, adr=%d): %s\n",
-	   f_names[pc.pc_func], pc.pc_addr, error_mesg);
-  runtime_error = TRUE;
-}
-
-
-/* A runtime warning tells of some action taken by the processor that
-   may change the program execution but was not enough of a problem
-   to stop the execution. */
-
-#ifndef VARARGS
-#ifdef __STDC__
-void
-rt_warn (char *mesg, ...)
-#else
-void
-rt_warn (mesg)
-     char *mesg;
-#endif
-#else
-void
-rt_warn (mesg, va_alist)
-     char *mesg;
-#endif
-{
-  va_list args;
-  char error_mesg [255];
-
-#ifndef VARARGS
-  va_start (args, mesg);
-#else
-  va_start (args);
-#endif
-  vsprintf (error_mesg, mesg, args);
-  va_end (args);
-
-  fprintf (stderr, "Runtime warning (func=%s, adr=%d): %s\n",
-	   f_names[pc.pc_func], pc.pc_addr, error_mesg);
-}
diff --git a/gnu/usr.bin/bc/version.h b/gnu/usr.bin/bc/version.h
deleted file mode 100644
index 6bf3ba3ae448..000000000000
--- a/gnu/usr.bin/bc/version.h
+++ /dev/null
@@ -1,3 +0,0 @@
-#define BC_VERSION  \
-"bc 1.03 (Nov 2, 1994)\nCopyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc."
-