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-.\" Copyright (c) 1995-1997 Free Software Foundation -*-Text-*-
-.\" See section COPYING for conditions for redistribution
-.\" FIXME: no info here on predefines. Should there be? extra for F77...
-.TH G77 1 "1999-02-14" "GNU Tools" "GNU Tools"
-.de BP
-.sp
-.ti \-.2i
-\(**
-..
-.SH NAME
-g77 \- GNU project Fortran Compiler (v0.5.24)
-.SH SYNOPSIS
-.RB g77 " [" \c
-.IR option " | " "filename " ].\|.\|.
-.SH WARNING
-The information in this man page is an extract from the full
-documentation of the GNU Fortran compiler (version 0.5.24),
-and is limited to the meaning of some of the options.
-.PP
-This man page is not up to date, since no volunteers want to
-maintain it. If you find a discrepancy between the man page and the
-software, please check the Info file, which is the authoritative
-documentation.
-.\" .PP
-.\" The version of GNU Fortran documented by the Info file is 0.5.24,
-.\" which includes substantial improvements and changes since 0.5.24,
-.\" the version documented in this man page.
-.PP
-If we find that the things in this man page that are out of date cause
-significant confusion or complaints, we will stop distributing the man
-page. The alternative, updating the man page when we update the Info
-file, is impractical because the rest of the work of maintaining GNU Fortran
-leaves us no time for that. The GNU project regards man pages as
-obsolete and should not let them take time away from other things.
-.PP
-For complete and current documentation, refer to the Info file `\|\c
-.B g77\c
-\&\|' or the manual
-.I
-Using and Porting GNU Fortran (for version 0.5.24)\c
-\&. Both are made from the Texinfo source file
-.BR g77.texi .
-.PP
-If your system has the `\|\c
-.B info\c
-\&\|' command installed, the command `\|\c
-.B info g77\c
-\&\|' should work, unless
-.B g77
-has not been properly installed.
-If your system lacks `\|\c
-.B info\c
-\&\|', or you wish to avoid using it for now,
-the command `\|\c
-.B more /usr/info/g77.info*\c
-\&\|' should work, unless
-.B g77
-has not been properly installed.
-.PP
-If
-.B g77
-has not been properly installed, so that you
-cannot easily access the Info file for it,
-ask your system administrator, or the installer
-of
-.B g77
-(if you know who that is) to fix the problem.
-.SH DESCRIPTION
-The C and F77 compilers are integrated;
-.B g77
-is a program to call
-.B gcc
-with options to recognize programs written in Fortran (ANSI FORTRAN 77,
-also called F77).
-.B gcc
-processes input files
-through one or more of four stages: preprocessing, compilation,
-assembly, and linking. This man page contains full descriptions for
-.I only
-F77-specific aspects of the compiler, though it also contains
-summaries of some general-purpose options. For a fuller explanation
-of the compiler, see
-.BR gcc ( 1 ).
-
-For complete documentation on GNU Fortran, type `\|\c
-.B info g77\c
-\&\|'.
-
-F77 source files use the suffix `\|\c
-.B .f\c
-\&\|', `\|\c
-.B .for\c
-\&\|', or `\|\c
-.B .FOR\c
-\&\|'; F77 files to be preprocessed by
-.BR cpp ( 1 )
-use the suffix `\|\c
-.B .F\c
-\&\|', `\|\c
-.B .fpp\c
-\&\|', or `\|\c
-.B .FPP\c
-\&\|'; Ratfor source files use the suffix `\|\c
-.B .r\c
-\&\|' (though
-.B ratfor
-itself is not supplied as part of
-.B g77\c
-\&).
-.SH OPTIONS
-There are many command-line options, including options to control
-details of optimization, warnings, and code generation, which are
-common to both
-.B gcc
-and
-.B g77\c
-\&. For full information on all options, see
-.BR gcc ( 1 ).
-
-Options must be separate: `\|\c
-.B \-dr\c
-\&\|' is quite different from `\|\c
-.B \-d \-r
-\&\|'.
-
-Most `\|\c
-.B \-f\c
-\&\|' and `\|\c
-.B \-W\c
-\&\|' options have two contrary forms:
-.BI \-f name
-and
-.BI \-fno\- name\c
-\& (or
-.BI \-W name
-and
-.BI \-Wno\- name\c
-\&). Only the non-default forms are shown here.
-
-.TP
-.B \-c
-Compile or assemble the source files, but do not link. The compiler
-output is an object file corresponding to each source file.
-.TP
-.BI \-D macro
-Define macro \c
-.I macro\c
-\& with the string `\|\c
-.B 1\c
-\&\|' as its definition.
-.TP
-.BI \-D macro = defn
-Define macro \c
-.I macro\c
-\& as \c
-.I defn\c
-\&.
-.TP
-.B \-E
-Stop after the preprocessing stage; do not run the compiler proper. The
-output is preprocessed source code, which is sent to the
-standard output.
-.TP
-.B \-g
-Produce debugging information in the operating system's native format
-(for DBX or SDB or DWARF). GDB also can work with this debugging
-information. On most systems that use DBX format, `\|\c
-.B \-g\c
-\&\|' enables use
-of extra debugging information that only GDB can use.
-
-Unlike most other Fortran compilers, GNU Fortran allows you to use `\|\c
-.B \-g\c
-\&\|' with
-`\|\c
-.B \-O\c
-\&\|'. The shortcuts taken by optimized code may occasionally
-produce surprising results: some variables you declared may not exist
-at all; flow of control may briefly move where you did not expect it;
-some statements may not be executed because they compute constant
-results or their values were already at hand; some statements may
-execute in different places because they were moved out of loops.
-
-Nevertheless it proves possible to debug optimized output. This makes
-it reasonable to use the optimizer for programs that might have bugs.
-.TP
-.BI "\-I" "dir"\c
-\&
-Append directory \c
-.I dir\c
-\& to the list of directories searched for include files.
-.TP
-.BI "\-L" "dir"\c
-\&
-Add directory \c
-.I dir\c
-\& to the list of directories to be searched
-for `\|\c
-.B \-l\c
-\&\|'.
-.TP
-.BI \-l library\c
-\&
-Use the library named \c
-.I library\c
-\& when linking.
-.TP
-.B \-nostdinc
-Do not search the standard system directories for header files. Only
-the directories you have specified with
-.B \-I
-options (and the current directory, if appropriate) are searched.
-.TP
-.B \-O
-Optimize. Optimizing compilation takes somewhat more time, and a lot
-more memory for a large function. See the GCC documentation for
-further optimisation options. Loop unrolling, in particular, may be
-worth investigating for typical numerical Fortran programs.
-.TP
-.BI "\-o " file\c
-\&
-Place output in file \c
-.I file\c
-\&.
-.TP
-.B \-S
-Stop after the stage of compilation proper; do not assemble. The output
-is an assembler code file for each non-assembler input
-file specified.
-.TP
-.BI \-U macro
-Undefine macro \c
-.I macro\c
-\&.
-.TP
-.B \-v
-Print (on standard error output) the commands executed to run the
-stages of compilation. Also print the version number of the compiler
-driver program and of the preprocessor and the compiler proper. The
-version numbers of g77 itself and the GCC distribution on which it is
-based are distinct.
-.TP
-.B \-Wall
-Issue warnings for conditions which pertain to usage that we recommend
-avoiding and that we believe is easy to avoid, even in conjunction
-with macros.
-.PP
-
-.SH FILES
-.ta \w'LIBDIR/g77\-include 'u
-file.h C header (preprocessor) file
-.br
-file.f Fortran source file
-.br
-file.for Fortran source file
-.br
-file.FOR Fortran source file
-.br
-file.F preprocessed Fortran source file
-.br
-file.fpp preprocessed Fortran source file
-.br
-file.FPP preprocessed Fortran source file
-.br
-file.r Ratfor source file (ratfor not included)
-.br
-file.s assembly language file
-.br
-file.o object file
-.br
-a.out link edited output
-.br
-\fITMPDIR\fR/cc\(** temporary files
-.br
-\fILIBDIR\fR/cpp preprocessor
-.br
-\fILIBDIR\fR/f771 compiler
-.br
-\fILIBDIR\fR/libg2c.a Fortran run-time library
-.br
-\fILIBDIR\fR/libgcc.a GCC subroutine library
-.br
-/lib/crt[01n].o start-up routine
-.br
-/lib/libc.a standard C library, see
-.IR intro (3)
-.br
-/usr/include standard directory for
-.B #include
-files
-.br
-\fILIBDIR\fR/include standard gcc directory for
-.B #include
-.br
- files.
-.sp
-.I LIBDIR
-is usually
-.B /usr/local/lib/\c
-.IR machine / version .
-.sp
-.I TMPDIR
-comes from the environment variable
-.B TMPDIR
-(default
-.B /usr/tmp
-if available, else
-.B /tmp\c
-\&).
-.SH "SEE ALSO"
-gcc(1), cpp(1), as(1), ld(1), gdb(1), adb(1), dbx(1), sdb(1).
-.br
-.RB "`\|" g77 "\|', `\|" gcc "\|', `\|" cpp "\|',"
-.RB "`\|" as "\|', `\|" ld "\|',"
-and
-.RB "`\|" gdb "\|'"
-entries in
-.B info\c
-\&.
-.br
-.I
-Using and Porting GNU Fortran (for version 0.5.24)\c
-, James Craig Burley;
-.I
-Using and Porting GNU CC (for version 2.0)\c
-, Richard M. Stallman;
-.I
-The C Preprocessor\c
-, Richard M. Stallman;
-.I
-Debugging with GDB: the GNU Source-Level Debugger\c
-, Richard M. Stallman and Roland H. Pesch;
-.I
-Using as: the GNU Assembler\c
-, Dean Elsner, Jay Fenlason & friends;
-.I
-gld: the GNU linker\c
-, Steve Chamberlain and Roland Pesch.
-
-.SH BUGS
-For instructions on how to report bugs, type `\|\c
-.B info g77 -n Bugs\c
-\&\|'.
-
-.SH COPYING
-Copyright (c) 1991-1998 Free Software Foundation, Inc.
-.PP
-Permission is granted to make and distribute verbatim copies of
-this manual provided the copyright notice and this permission notice
-are preserved on all copies.
-.PP
-Permission is granted to copy and distribute modified versions of this
-manual under the conditions for verbatim copying, provided that the
-entire resulting derived work is distributed under the terms of a
-permission notice identical to this one.
-.PP
-Permission is granted to copy and distribute translations of this
-manual into another language, under the above conditions for modified
-versions, except that this permission notice may be included in
-translations approved by the Free Software Foundation instead of in
-the original English.
-.SH AUTHORS
-See the GNU CC Manual for the contributors to GNU CC.
-See the GNU Fortran Manual for the contributors to
-GNU Fortran.
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