Merge from head

15 files changed, 55 insertions, 40 deletions

diff --git a/usr.bin/m4/Makefile b/usr.bin/m4/Makefile
index 1f1ec5e0f6de..f0e22f806c87 100644
--- a/usr.bin/m4/Makefile
+++ b/usr.bin/m4/Makefile
@@ -8,8 +8,8 @@ PROG=	m4
 CFLAGS+=-DEXTENDED -I${.CURDIR} -I${.CURDIR}/lib
 DPADD=	${LIBY} ${LIBL} ${LIBM}
 LDADD=	-ly -ll -lm
-# clang needs 1 while with gcc we can use 2
-#WARNS=	1
+
+NO_WMISSING_VARIABLE_DECLARATIONS=
 
 SRCS=	eval.c expr.c look.c main.c misc.c gnum4.c trace.c parser.y tokenizer.l
 .PATH: ${.CURDIR}/lib
diff --git a/usr.bin/m4/TEST/ack.m4 b/usr.bin/m4/TEST/ack.m4
index c4bc39d26eea..bf2a9956455f 100644
--- a/usr.bin/m4/TEST/ack.m4
+++ b/usr.bin/m4/TEST/ack.m4
@@ -1,4 +1,4 @@
-#	$OpenBSD: ack.m4,v 1.2 1996/06/26 05:36:18 deraadt Exp $
+#	$OpenBSD: ack.m4,v 1.3 2003/06/03 02:56:11 millert Exp $
 #	$NetBSD: ack.m4,v 1.4 1995/09/28 05:37:54 tls Exp $
 #
 # Copyright (c) 1989, 1993
@@ -15,7 +15,7 @@
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
-# 4. Neither the name of the University nor the names of its contributors
+# 3. Neither the name of the University nor the names of its contributors
 #    may be used to endorse or promote products derived from this software
 #    without specific prior written permission.
 #
diff --git a/usr.bin/m4/TEST/hanoi.m4 b/usr.bin/m4/TEST/hanoi.m4
index b26ec6b8f2b9..5be47d1da5ee 100644
--- a/usr.bin/m4/TEST/hanoi.m4
+++ b/usr.bin/m4/TEST/hanoi.m4
@@ -1,4 +1,4 @@
-#	$OpenBSD: hanoi.m4,v 1.2 1996/06/26 05:36:19 deraadt Exp $
+#	$OpenBSD: hanoi.m4,v 1.3 2003/06/03 02:56:11 millert Exp $
 #	$NetBSD: hanoi.m4,v 1.4 1995/09/28 05:37:56 tls Exp $
 #
 # Copyright (c) 1989, 1993
@@ -15,7 +15,7 @@
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
-# 4. Neither the name of the University nor the names of its contributors
+# 3. Neither the name of the University nor the names of its contributors
 #    may be used to endorse or promote products derived from this software
 #    without specific prior written permission.
 #
diff --git a/usr.bin/m4/TEST/hash.m4 b/usr.bin/m4/TEST/hash.m4
index 7aa20380e3cf..06357df6181d 100644
--- a/usr.bin/m4/TEST/hash.m4
+++ b/usr.bin/m4/TEST/hash.m4
@@ -1,4 +1,4 @@
-#	$OpenBSD: hash.m4,v 1.2 1996/06/26 05:36:19 deraadt Exp $
+#	$OpenBSD: hash.m4,v 1.3 2003/06/03 02:56:11 millert Exp $
 #	$NetBSD: hash.m4,v 1.4 1995/09/28 05:37:58 tls Exp $
 #
 # Copyright (c) 1989, 1993
@@ -15,7 +15,7 @@
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
-# 4. Neither the name of the University nor the names of its contributors
+# 3. Neither the name of the University nor the names of its contributors
 #    may be used to endorse or promote products derived from this software
 #    without specific prior written permission.
 #
diff --git a/usr.bin/m4/TEST/sqroot.m4 b/usr.bin/m4/TEST/sqroot.m4
index 9b801099e5ad..1442ecf6cc7b 100644
--- a/usr.bin/m4/TEST/sqroot.m4
+++ b/usr.bin/m4/TEST/sqroot.m4
@@ -1,4 +1,4 @@
-#	$OpenBSD: sqroot.m4,v 1.2 1996/06/26 05:36:20 deraadt Exp $
+#	$OpenBSD: sqroot.m4,v 1.3 2003/06/03 02:56:11 millert Exp $
 #	$NetBSD: sqroot.m4,v 1.4 1995/09/28 05:38:01 tls Exp $
 #
 # Copyright (c) 1989, 1993
@@ -15,7 +15,7 @@
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
-# 4. Neither the name of the University nor the names of its contributors
+# 3. Neither the name of the University nor the names of its contributors
 #    may be used to endorse or promote products derived from this software
 #    without specific prior written permission.
 #
diff --git a/usr.bin/m4/TEST/string.m4 b/usr.bin/m4/TEST/string.m4
index ce12396d6b04..61fc28e8bee8 100644
--- a/usr.bin/m4/TEST/string.m4
+++ b/usr.bin/m4/TEST/string.m4
@@ -1,4 +1,4 @@
-#	$OpenBSD: string.m4,v 1.2 1996/06/26 05:36:20 deraadt Exp $
+#	$OpenBSD: string.m4,v 1.3 2003/06/03 02:56:11 millert Exp $
 #	$NetBSD: string.m4,v 1.4 1995/09/28 05:38:03 tls Exp $
 #
 # Copyright (c) 1989, 1993
@@ -15,7 +15,7 @@
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
-# 4. Neither the name of the University nor the names of its contributors
+# 3. Neither the name of the University nor the names of its contributors
 #    may be used to endorse or promote products derived from this software
 #    without specific prior written permission.
 #
diff --git a/usr.bin/m4/TEST/test.m4 b/usr.bin/m4/TEST/test.m4
index 61b8de698011..25b01b8b3e82 100644
--- a/usr.bin/m4/TEST/test.m4
+++ b/usr.bin/m4/TEST/test.m4
@@ -1,4 +1,4 @@
-#	$OpenBSD: test.m4,v 1.2 1996/06/26 05:36:21 deraadt Exp $
+#	$OpenBSD: test.m4,v 1.3 2003/06/03 02:56:11 millert Exp $
 #	$NetBSD: test.m4,v 1.4 1995/09/28 05:38:05 tls Exp $
 #
 # Copyright (c) 1989, 1993
@@ -15,7 +15,7 @@
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
-# 4. Neither the name of the University nor the names of its contributors
+# 3. Neither the name of the University nor the names of its contributors
 #    may be used to endorse or promote products derived from this software
 #    without specific prior written permission.
 #
diff --git a/usr.bin/m4/eval.c b/usr.bin/m4/eval.c
index 729cf18ce39a..fbd42aa9e796 100644
--- a/usr.bin/m4/eval.c
+++ b/usr.bin/m4/eval.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: eval.c,v 1.69 2011/03/24 11:23:08 espie Exp $	*/
+/*	$OpenBSD: eval.c,v 1.70 2012/04/12 17:00:11 espie Exp $	*/
 /*	$NetBSD: eval.c,v 1.7 1996/11/10 21:21:29 pk Exp $	*/
 
 /*
diff --git a/usr.bin/m4/extern.h b/usr.bin/m4/extern.h
index ccb2e77045e7..7753c32c8a0e 100644
--- a/usr.bin/m4/extern.h
+++ b/usr.bin/m4/extern.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: extern.h,v 1.51 2011/09/27 07:24:02 espie Exp $	*/
+/*	$OpenBSD: extern.h,v 1.52 2012/04/12 17:00:11 espie Exp $	*/
 /*	$NetBSD: extern.h,v 1.3 1996/01/13 23:25:24 pk Exp $	*/
 
 /*-
diff --git a/usr.bin/m4/lib/ohash_init.3 b/usr.bin/m4/lib/ohash_init.3
index 19213f300402..e0b232077465 100644
--- a/usr.bin/m4/lib/ohash_init.3
+++ b/usr.bin/m4/lib/ohash_init.3
@@ -31,9 +31,9 @@
 .Nm ohash_entries
 .Nd light-weight open hashing
 .Sh SYNOPSIS
-.Fd #include <stdint.h>
-.Fd #include <stddef.h>
-.Fd #include <ohash.h>
+.In stdint.h
+.In stddef.h
+.In ohash.h
 .Ft void
 .Fn ohash_init "struct ohash *h" "unsigned int size" "struct ohash_info *info"
 .Ft void
diff --git a/usr.bin/m4/lib/ohash_interval.3 b/usr.bin/m4/lib/ohash_interval.3
index 12e762036ff5..8abe7a842bf8 100644
--- a/usr.bin/m4/lib/ohash_interval.3
+++ b/usr.bin/m4/lib/ohash_interval.3
@@ -25,9 +25,9 @@
 .Nm ohash_qlookupi
 .Nd helper functions for open hashing
 .Sh SYNOPSIS
-.Fd #include <stdint.h>
-.Fd #include <stddef.h>
-.Fd #include <ohash.h>
+.In stdint.h
+.In stddef.h
+.In ohash.h
 .Ft uint32_t
 .Fn ohash_interval "const char *start" "const char **pend"
 .Ft "void *"
diff --git a/usr.bin/m4/m4.1 b/usr.bin/m4/m4.1
index 6d261116cb40..d0669c127dd6 100644
--- a/usr.bin/m4/m4.1
+++ b/usr.bin/m4/m4.1
@@ -1,5 +1,5 @@
-.\"	$NetBSD: m4.1,v 1.22 2010/05/14 17:14:28 joerg Exp $
-.\"	@(#) $OpenBSD: m4.1,v 1.56 2009/10/14 17:19:47 sthen Exp $
+.\"	$NetBSD: m4.1,v 1.23 2012/04/08 22:00:39 wiz Exp $
+.\"	@(#) $OpenBSD: m4.1,v 1.59 2010/10/21 13:20:51 jmc Exp $
 .\"
 .\" Copyright (c) 1989, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -33,14 +33,14 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 14, 2009
+.Dd October 21, 2010
 .Dt M4 1
 .Os
 .Sh NAME
 .Nm m4
 .Nd macro language processor
 .Sh SYNOPSIS
-.Nm m4
+.Nm
 .Op Fl gPs
 .Oo
 .Sm off
@@ -50,18 +50,16 @@
 .Op Fl d Ar flags
 .Op Fl I Ar dirname
 .Op Fl o Ar filename
-.Bk -words
 .Op Fl t Ar macro
 .Op Fl U Ns Ar name
 .Op Ar
-.Ek
 .Sh DESCRIPTION
 The
-.Nm m4
+.Nm
 utility is a macro processor that can be used as a front end to any
 language (e.g., C, ratfor, fortran, lex, and yacc).
 If no input files are given,
-.Nm m4
+.Nm
 reads from the standard input,
 otherwise files specified on the command line are
 processed in the given order.
@@ -69,7 +67,7 @@ Input files can be regular files, files in the m4 include paths, or a
 single dash
 .Pq Sq - ,
 denoting standard input.
-.Nm m4
+.Nm
 writes
 the processed text to the standard output, unless told otherwise.
 .Pp
@@ -77,7 +75,7 @@ Macro calls have the form name(argument1[, argument2, ..., argumentN]).
 .Pp
 There cannot be any space following the macro name and the open
 parenthesis
-.Sq \&( .
+.Pq Sq \&( .
 If the macro name is not followed by an open
 parenthesis it is processed with no arguments.
 .Pp
@@ -169,7 +167,7 @@ Undefine the symbol
 .Ar name .
 .El
 .Sh SYNTAX
-.Nm m4
+.Nm
 provides the following built-in macros.
 They may be redefined, losing their original meaning.
 Return values are null unless otherwise stated.
@@ -240,7 +238,7 @@ macro definitions (even for built-in macros).
 .It Fn divert num
 There are 10 output queues (numbered 0-9).
 At the end of processing
-.Nm m4
+.Nm
 concatenates all the queues in numerical order to produce the
 final output.
 Initially the output queue is 0.
@@ -259,7 +257,7 @@ Prints the first argument on the standard error output stream.
 .It Fn esyscmd cmd
 Passes its first argument to a shell and returns the shell's standard output.
 Note that the shell shares its standard input and standard error with
-.Nm m4 .
+.Nm .
 .It Fn eval expr
 Computes the first argument as an arithmetic expression using 32-bit
 arithmetic.
@@ -348,6 +346,9 @@ Multiple calls to
 get inserted in sequence at the final
 .Dv EOF .
 .It Fn maketemp template
+Like
+.Ic mkstemp .
+.It Fn mkstemp template
 Invokes
 .Xr mkstemp 3
 on the first argument, and returns the modified string.
@@ -431,10 +432,16 @@ Returns the current file's line number.
 .It Ic __file__
 Returns the current file's name.
 .El
+.Sh EXIT STATUS
+.Ex -std m4
+.Pp
+But note that the
+.Ic m4exit
+macro can modify the exit status.
 .Sh STANDARDS
 The
 .Nm
-utility is compliant with the
+utility is mostly compliant with the
 .St -p1003.1-2008
 specification.
 .Pp
@@ -456,6 +463,12 @@ and
 .Ic __file__
 are extensions to that specification.
 .Pp
+.Ic maketemp
+is not supposed to be a synonym for
+.Ic mkstemp ,
+but instead to be an insecure temporary file name creation function.
+The change causes no known compatibility issues.
+.Pp
 The output format of tracing and of
 .Ic dumpdef
 are not specified in any standard,
@@ -480,7 +493,7 @@ replaces the top-most definition only.
 Other implementations may erase all definitions on the stack instead.
 .Pp
 All built-ins do expand without arguments in many other
-.Nm m4 .
+.Nm .
 .Pp
 Many other
 .Nm
diff --git a/usr.bin/m4/main.c b/usr.bin/m4/main.c
index c8de97c8bbf4..1cb0340fbdd4 100644
--- a/usr.bin/m4/main.c
+++ b/usr.bin/m4/main.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: main.c,v 1.80 2011/09/27 07:24:02 espie Exp $	*/
+/*	$OpenBSD: main.c,v 1.81 2012/04/12 17:00:11 espie Exp $	*/
 /*	$NetBSD: main.c,v 1.12 1997/02/08 23:54:49 cgd Exp $	*/
 
 /*-
diff --git a/usr.bin/m4/parser.y b/usr.bin/m4/parser.y
index 2239cf39c18d..8e8ad8c5e264 100644
--- a/usr.bin/m4/parser.y
+++ b/usr.bin/m4/parser.y
@@ -1,5 +1,5 @@
 %{
-/* $OpenBSD: parser.y,v 1.6 2008/08/21 21:00:14 espie Exp $ */
+/* $OpenBSD: parser.y,v 1.7 2012/04/12 17:00:11 espie Exp $ */
 /*
  * Copyright (c) 2004 Marc Espie <espie@cvs.openbsd.org>
  *
diff --git a/usr.bin/m4/tokenizer.l b/usr.bin/m4/tokenizer.l
index ca3612e41441..2b4b2dba3d4f 100644
--- a/usr.bin/m4/tokenizer.l
+++ b/usr.bin/m4/tokenizer.l
@@ -1,6 +1,6 @@
 %option nounput noinput
 %{
-/* $OpenBSD: tokenizer.l,v 1.7 2010/03/22 20:40:44 espie Exp $ */
+/* $OpenBSD: tokenizer.l,v 1.8 2012/04/12 17:00:11 espie Exp $ */
 /*
  * Copyright (c) 2004 Marc Espie <espie@cvs.openbsd.org>
  *
@@ -31,6 +31,8 @@ extern int32_t yylval;
 int32_t number(void);
 int32_t parse_radix(void);
 extern int yylex(void);
+
+#define	YY_DECL	int yylex(void)
 %}
 
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