MAN page from Old RedHat 5.X fort77-1.14a-3.i386.rpm

FORT77

Section: Linux Programmer's Manual (1)
Updated: Nov 1996
Index

NAME

fort77 - invoke f2c Fortran translator transparently, like a compiler

SYNOPSIS

fort77[-c][-g][-v][-k][-P][-cpp][f2c option ...][-Ldirectory ...][gcc-option ...][link option ...][-Ooptlevel][-ooutfile][-s][-w][-Wx,arg1[,arg2]...]file ...

DESCRIPTION

Thefort77script invokes thef2ccommand transparently, so it can be used like a real Fortran compiler.It can be used to compile Fortran, C and assembler code, and to linkit with the f2c libraries.

File arguments ending with.fare compiled as Fortran source files.Files which end with.Pare passed through to f2c, and files ending with.Fare passed to the C preprocessor (invoked as/lib/cpp -traditional)first. Any switches passed via-Dwill be passed to the preprocessor.If the translation is successful, the resulting C files will be passed toccfor translation into an object file.Files ending in.c,.C,.cc,.i,.s,.S,.m,.ccor.cxxare passed to the GNU C compiler directly; seegcc(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.-vBe verbose; supplying this twice will also tell the C compilersetc to be verbose.
-k: Keep the C files generated by f2c around.
-cpp: Pass Fortran code through the C preprocessor, as if filenamesended in.F.
-P: Generate f2c.P files.
-Ldirectory: Includedirectoryin the search for libraries in the final linking stage.
-o outfile: Send output tooutfile.
-Wx,arg1[,arg2...]: Pass the argument[s]argithrough to the subprocessx,wherexcan assume one of the following values:ffor the f2c step,pfor the preprocessing step,cfor the C compiler,afor the assembler (this is actually passed to the C compiler, too), andlfor the linker.As an example, defining a preprocessor constant for the C compilationstep would be done with-Wc,-DUNIX=1.Specifying the-foption to f2c would be done via-Wf,-f.
f2c option: fort77passes through almost allf2coptions:-C,-U,-u,-a,-E,-h,-P,-R,-r,-z,-I2,-I4,-onetrip,-!c,-!l,-!P,-!R,-ext,-!bs,-W[n],-w8-r8and-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 atMAIN__before you start.

f2cThis script automatically supplies the-I.option tof2c.Older versions off2cmay not support this.

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

The-ffast-mathoption is implied in -O, unlike gcc.If this causes problems, it can be overridden with-fnofast-math.

Thefort77script does not strictly conform to Posix.2, because it accepptslong options with one leading slash. This is done for gcccompatibility.

AUTHOR

Thomas Koenig, ig25AATTrz.uni-karlsruhe.de

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