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This is the command fort77 that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



fort77 - invoke f2c Fortran translator transparently, like a compiler


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


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.


-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.

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.

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

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