X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f From: Hans-Bernhard Broeker Newsgroups: comp.os.msdos.djgpp Subject: Re: obtaining GCC -march setting in code? Date: 14 Nov 2003 08:36:16 GMT Organization: Aachen University of Technology (RWTH) Lines: 20 Message-ID: References: NNTP-Posting-Host: ac3b07.physik.rwth-aachen.de X-Trace: nets3.rz.RWTH-Aachen.DE 1068798976 22311 137.226.33.205 (14 Nov 2003 08:36:16 GMT) X-Complaints-To: abuse AT rwth-aachen DOT de NNTP-Posting-Date: 14 Nov 2003 08:36:16 GMT To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com nospam AT none DOT com wrote: > Is there a way to get the gcc's -march=XXX and -mfpmath=YYY type in > the c/c++ code? To some extent. If you inspect the 'specs' file carefully, you'll find preprocessor macros triggered for every -march -mcpu option. I expect similar ones for fpmath, but don't have a DJGPP installation of GCC 3 at hand to check. The best way probably is to not try and do this automatically, but rather just use the preprocessor explicitly, i.e. -march=XXX -DCPUTYPE="XXX" -mfpmath=YYY -DFPMATH="YYY" -- Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de) Even if all the snow were burnt, ashes would remain.