f771

Usage

Overview

This manual page documents briefly the f77 command. This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page.

f77 is a style shell script to compile and load fortran, C, and assembly codes. It is based on a f77 script which came with earlier versions of Slackware. It got improved to be a little more resistant to some fortran 77 extensions, not handled by f2c, so far:

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DATA statements can now be placed anywhere in the subroutine initialization code.

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include's are always replaced by '#include'

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Line continuation of the form <tab><digit> is allowed.

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The bitfunctions ibset, ibclr, btest, ishft, iand and ior are available in an external library. (They have to be declared in the subroutine header if one wants to use them!).

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variable initialization in the variable definitions are also possible now. f77reorder converts them to definitions followed by data statements as the f77 standards requests.

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Common Block definitions which are continues over lines don't have to have a comma separating variables over the line break. f77reorder does insert it.

Options

-h, --help

Show summary of options.

-o file

Override default executable name a.out.

-c

Do not call linker, leave relocatables in *.o.

-a

Use automatic variables as default.

-GD

uncomment D comments.

-S

leave assembler output on file.s.

-llibrary

Use the library named library when linking.

-Wl,option

Pass option option to the linker.

-u

Complain about undeclared variables.

-w

Omit all warning messages.

-w66

Omit Fortran 66 compatibility warning messages.

-cf opt

Pass options opt to the C compiler

-f2c opt

Pass options opt to f2c.

--keepC

Keep original C files for better debugging.

--commainsert

Insert commas between continued lines of common blocks if missing - might fail!

--elf

write elf code (linux only)

--aout

write aout code (linux only)

-I dir

Append directory dir to the list of directories searched for include files.

-Ntnnn

allow nnn entries in table t

-cpp

pipe through cpp

Files

file.f FORTRAN source file
file.c C source file
file.s Assembly language file
file.e efl source file