[RFC PATCH] glibc doesn't build with "gcc -march=i686"

Jakub Jelinek jakub@redhat.com
Sat May 24 18:40:00 GMT 2008


On Fri, May 23, 2008 at 02:37:38PM -0700, Paul Pluzhnikov wrote:
> Attempting to build glibc (cvs) with CC='gcc -march=i686' results in errors:
> 
> ../sysdeps/i386/fpu/s_frexp.S: Assembler messages:
> ../sysdeps/i386/fpu/s_frexp.S:66: Error: invalid identifier for ".ifdef"
> ../sysdeps/i386/fpu/s_frexp.S:66: Error: junk at end of line, first
> unrecognized character is `1'
> ../sysdeps/i386/fpu/s_frexp.S:66: Error: junk at end of line, first
> unrecognized character is `1'
> ../sysdeps/i386/fpu/s_frexp.S:66: Error: junk at end of line, first
> unrecognized character is `1'
> ../sysdeps/i386/fpu/s_frexp.S:66: Error: unrecognized symbol type ""
> 
> This is because gcc defines __i686 to 1 when -march=i686
> 
> Attached patch fixes that, but perhaps there is a better way?

Don't do that?  Put -march=i686 instead into CFLAGS.

	Jakub



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