Lionel Bouton wrote:
> <warn>
> We would like to remind you that using anything beyond <c>-O2
> -fomit-frame-pointer -march/-mcpu/-mtune</c> in CFLAGS or CXXFLAGS (and
> <c>-mieee, -mabi</c> etc. on selected archs that tell you to do this),
> and using anything at all in LDFLAGS or ASFLAGS, is usually not worth it
> for most users.

 Do we have an official list of recommended -march settings somewhere?

 I, for one, still do not know what the right CFLAGS for my ThinkPad X60s
 with its Intel Core Duo CPU are. At the moment I am using

   CFLAGS="-march=pentium-m -O2 -pipe"

 while suggests either

   CFLAGS="-march=prescott -O2 -pipe -fomit-frame-pointer"


   CFLAGS="-march=pentium-m -msse3 -O2 -pipe -fomit-frame-pointer"

 A tool that suggests CFLAGS based on /proc/cpuinfo and/or x86info would
 be nice, too.

Sebastian Bergmann                
GnuPG Key: 0xB85B5D69 / 27A7 2B14 09E4 98CD 6277 0E5B 6867 C514 B85B 5D69

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