XFree86-4.3.0-44 build fails in xc/programs/bitmap : IT'S -Os
seandarcy at hotmail.com
Mon Dec 1 04:40:30 UTC 2003
>If you suspect a bug in the compiler (which this
>looks like it), find out which libXaw.so object has undefined .L91
>symbol and file a bugreport in http://bugzilla.redhat.com/bugzilla/
>with the details (gcc command line used to compile that object
>with .L91 undefined reference (use e.g. nm -u to find out), preprocessed
>source (add -save-temps to gcc options, rerun it and attach the resulting
>.i file) and exact gcc version you used).
Well I didn't. But the weekend was not a total loss; it is a compiler bug.
XFree builds with -O2 ; -march=athlon-xp -O2; even -O3.
But it fails at the same place with -Os - whatever -march=.
Odd. As I understand -Os , it's the same as -O2, just doesn't unroll as many
loops to keep the executable smaller.
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