[Bug fortran/81615] save-temps and gfortran produces *.f90 files instead of *.i or *i90 files
tkoenig at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Mon Jul 31 16:13:00 GMT 2017
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81615
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
--- Comment #3 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
I agree that the current handling of *.f90 and *.f with
-cpp and -save-temps is undocumented and partially broken.
Consider creating a *.f90 file from a *.f file:
$ cat foo.f
programme main
end
$ gfortran -cpp -save-temps foo.f
$ cat foo.f90
# 1 "foo.f"
# 1 "<eingebaut>"
# 1 "<Kommandozeile>"
# 1 "foo.f"
programme main
end
$ gfortran foo.f90
foo.f90:1:13:
# 1 "foo.f"
1
Fehler: Ungültige Form der PROGRAM-Anweisung bei (1)
Here, we generate a fixed-form program source with an
extension that is usually an indicator of fixed form.
One possibility would be to disable -save-temps together
with -cpp when the source file is *.f or *.f90 (or *.f03).
Creating *.f90 from *.F90 is also dangerous on Windows systems.
I think creating *.i and *.i90 files, respectively, would be
a better option. ifort does so, so there is at least some
precedent.
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