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Manpages G77Section: GNU Tools (1)Updated: 1999-02-14 Index Return to Main Contents NAMEg77 - GNU project Fortran Compiler (v0.5.24)SYNOPSISg77 [option | filename ]...WARNINGThe 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.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. If we find that the things in this man page that are out of date cause significant confusion or complaints, we will stop distributing the man page.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. For complete and current documentation, refer to the Info file `g77' or the manual Using and Porting GNU Fortran (for version 0.5.24). Both are made from the Texinfo source file g77.texi. If your system has the `info' command installed, the command `info g77' should work, unless g77 has not been properly installed. If your system lacks `info', or you wish to avoid using it for now, the command `more /usr/info/g77.info*' should work, unless g77 has not been properly installed. If 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 g77 (if you know who that is) to fix the problem. DESCRIPTIONThe C and F77 compilers are integrated; g77 is a program to call gcc with options to recognize programs written in Fortran (ANSI FORTRAN 77, also called F77). gcc processes input files through one or more of four stages: preprocessing, compilation, assembly, and linking. This man page contains full descriptions for 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 gcc(1).For complete documentation on GNU Fortran, type `info g77'. F77 source files use the suffix `.f', `.for', or `.FOR'; F77 files to be preprocessed by cpp(1) use the suffix `.F', `.fpp', or `.FPP'; Ratfor source files use the suffix `.r' (though ratfor itself is not supplied as part of g77). OPTIONSThere are many command-line options, including options to control details of optimization, warnings, and code generation, which are common to both gcc and g77. For full information on all options, see gcc(1).Options must be separate: `-dr' is quite different from `-d -r '. Most `-f' and `-W' options have two contrary forms: -fname and -fno-name (or -Wname and -Wno-name). Only the non-default forms are shown here.
FILESfile.h C header (preprocessor) filefile.f Fortran source file file.for Fortran source file file.FOR Fortran source file file.F preprocessed Fortran source file file.fpp preprocessed Fortran source file file.FPP preprocessed Fortran source file file.r Ratfor source file (ratfor not included) file.s assembly language file file.o object file a.out link edited output TMPDIR/cc* temporary files LIBDIR/cpp preprocessor LIBDIR/f771 compiler LIBDIR/libg2c.a Fortran run-time library LIBDIR/libgcc.a GCC subroutine library /lib/crt[01n].o start-up routine /lib/libc.a standard C library, see intro(3) /usr/include standard directory for #include files LIBDIR/include standard gcc directory for #include files. LIBDIR is usually /usr/local/lib/machine/version. TMPDIR comes from the environment variable TMPDIR (default /usr/tmp if available, else /tmp). SEE ALSOgcc(1), cpp(1), as(1), ld(1), gdb(1), adb(1), dbx(1), sdb(1).`g77', `gcc', `cpp', `as', `ld', and `gdb' entries in info. Using and Porting GNU Fortran (for version 0.5.24), James Craig Burley; Using and Porting GNU CC (for version 2.0), Richard M. Stallman; The C Preprocessor, Richard M. Stallman; Debugging with GDB: the GNU Source-Level Debugger, Richard M. Stallman and Roland H. Pesch; Using as: the GNU Assembler, Dean Elsner, Jay Fenlason & friends; gld: the GNU linker, Steve Chamberlain and Roland Pesch. BUGSFor instructions on how to report bugs, type `info g77 -n Bugs'.COPYINGCopyright (c) 1991-1998 Free Software Foundation, Inc.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. 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. 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. AUTHORSSee 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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