target/4789: [DJGPP] preprocessing fortran files by cpp with extension .f

[Andris Pavenis]

On Tuesday 08 January 2002 12:26, neil@gcc.gnu.org wrote:
> Synopsis: [DJGPP] preprocessing fortran files by cpp with extension .f
>
> Responsible-Changed-From-To: toon->unassigned
> Responsible-Changed-By: neil
> Responsible-Changed-When: Tue Jan  8 02:26:30 2002
> Responsible-Changed-Why:
>     Not a fortran issue per-se; a target-specific packaging issue
>     I think.
>
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&
>pr=4789

The problem appears when -remap is used in specs in cpp_options. cpp_options
settings are common for both tradcpp0 and cpp0. For DJGPP we need -remap
to avoid need to use changed names of include files (DJGPP can be used under
plain MS-DOS when we only have 8+3 filename limitations). -remap is not 
recognized by tradcpp0 as valid option. Unfortunatelly tradcpp0 and cpp0 are
used also directly in specs not only through trad_capable_cpp (otherwise I 
could change there)

I tried to fix that for DJGPP port of gcc-3.0.3, but it required to add 
options specially for cpp0 only (not for tradcpp0) and to use this new spec 
where needed  (in cp/lang-specs.h and f/lang-specs.h, gcc.c, etc)

Andris