NAME

       fort77 - invoke f2c Fortran translator transparently, like a compiler

SYNOPSIS

       fort77  [-c]  [-g] [-v] [-k] [-P] [-cpp] [f2c option ...]  [-L directory ...]  [gcc-option
       ...]  [link option ...]  [-O optlevel] [-o outfile] [-s] [-w]  [-Wx,arg1[,arg2]...]   file
       ...

DESCRIPTION

       The  fort77  script  invokes  the f2c command transparently, so it can be used like a real
       Fortran compiler.  It can be used to compile Fortran, C and assembler code, and to link it
       with the f2c libraries.

       File  arguments ending with .f are compiled as Fortran source files.  Files which end with
       .P are passed through to f2c, and files ending with .F are passed to  the  C  preprocessor
       (invoked  as "/lib/cpp -traditional") first.  Any switches passed via -D will be passed to
       the preprocessor.  If the translation is successful, the resulting C files will be  passed
       to  cc  for translation into an object file.  Files ending in .c, .C, .cc, .i, .s, .S, .m,
       .cc or .cxx are passed to the GNU C compiler directly; see gcc(1).  All  other  files  are
       passed to the linker.

OPTIONS

       -c      Supress linking and produce an object ( .o ) file from each source file.

       -g      Include debugging information.  -v Be verbose; supplying this twice will also tell
               the C compilers etc to be verbose.

       -k      Keep the C files generated by f2c around.

       -cpp    Pass Fortran code through the C preprocessor, as if filenames ended in .F.

       -P      Generate f2c .P files.

       -Ldirectory
               Include directory in the search for libraries in the final linking stage.

       -o outfile
               Send output to outfile.

       -trapuv Have f2c generate code to trap uninitialized values.

       -Wx,arg1[,arg2...]
               Pass the argument[s] argi through to the subprocess x, where x can assume  one  of
               the  following values: f for the f2c step, p for the preprocessing step, c for the
               C compiler, a for the assembler (this is actually passed to the C compiler,  too),
               and  l  for the linker.  As an example, defining a preprocessor constant for the C
               compilation step would be done with -Wc,-DUNIX=1.  Specifying the -f option to f2c
               would be done via -Wf,-f.

       f2c option
               fort77  passes through almost all f2c options: -C, -U, -u, -a, -E, -h, -P, -R, -r,
               -z, -I2, -I4, -onetrip, -!c, -!l, -!P, -!R, -ext, -!bs, -W[n], -trapuv,  -w8,  -r8
               and -w66.

       gcc options
               The  following options are passed through to gcc: -f*, -W*, -U*, -A*, -m*, -S, -E,
               -v, -x, -pipe, -o, -I, -V, -b*, -p, -pg.

       linker option
               The options passed to  the  linking  stage  are  -static,  -shared,  -v,  -V,  and
               -symbolic.

BUGS

       To make debugging work, you need to set a breakpoint at MAIN__ before you start.

       f2c  This script automatically supplies the -I.  option to f2c.  Older versions of f2c may
       not support this.

       This script is for the interaction of gcc and f2c; using it  with  another  compiler  will
       probably require modification.

       The  fort77  script does not strictly conform to Posix.2, because it acceppts long options
       with one leading slash.  This is done for gcc compatibility.

SEE ALSO

       f2c(1), cc(1), as(1), ld(1)

AUTHOR

       Thomas Koenig, ig25@rz.uni-karlsruhe.de