[Openal-devel] How to set CFLAGS for specific files?
sven.panne at aedion.de
Fri Oct 27 00:22:01 PDT 2006
Am Freitag, 27. Oktober 2006 07:31 schrieb Prakash Punnoor:
> I changed the SIMD enabling routines in CMake to make it possible to
> generate portable code with gcc. For that it was needed that the SIMD
> CFLAGS only get applied to the c source files which contain SIMD and not to
> the rest of the source files. Because otherwise (esp with SSE2) gcc could
> emit SSE code for float maths... Now I want to do the same for the
> autotools project, but I don't know an easy way. Any advise?
The relevant documentation is here:
In a nutshell: If you want special CFLAGS for foo.c, add
foo_CFLAGS = -my -special -CFLAGS
to the Makefile.am in question. Note that the global AM_CFLAGS are not used in
this case, so depending on what you want to achieve, you'd better use
foo_CFLAGS = $(AM_CFLAGS) -my -special -CFLAGS
Just a small remark: src/arch/i386/Makefile.am looks a little bit complicated,
why e.g. are the COMPILE/LTCOMPILE/CCLD/LINK definitions necessary?
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