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