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

[Neil Booth]

The following reply was made to PR target/4789; it has been noted by GNATS.

From: Neil Booth <neil@daikokuya.demon.co.uk>
To: Andris Pavenis <pavenis@latnet.lv>
Cc: neil@gcc.gnu.org, bonner@ivp.bepr.ethz.ch, gcc-bugs@gcc.gnu.org,
	toon@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Subject: Re: target/4789: [DJGPP] preprocessing fortran files by cpp with extension .f
Date: Tue, 8 Jan 2002 18:42:31 +0000

 Andris Pavenis wrote:-
 
 > 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)
 
 Are you saying that getting tradcpp to recognize and ignore -remap
 would fix it?  Or does tradcpp require a -remap implementation?
 
 > 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)
 
 What exactly did you do?
 
 Neil.