Hi. I went into an error building binutils (LFS SVN). Being an old LFS user, I wanted to go for some optimizations, so I followed the optimization hint, aware of the fact that I could run into troubles.
So that's where I ran, and I wanted to signal this, which is in fact allready in the knoledge base of binutils (or is it sourcemage ?) : http://bugs.sourcemage.org/show_bug.cgi?id=12741 using gcc-4.1.1 gcc -DHAVE_CONFIG_H -I. -I../../binutils -I. -D_GNU_SOURCE -I. -I../../binutils -I../bfd -I../../binutils/../bfd -I../../binutils/../include -I../../binutils/../intl -I../intl -DLOCALEDIR="\"/usr/share/locale\"" -Dbin_dummy_emulation=bin_vanilla_emulation -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Werror -O -march=athlon-tbird -mmmx -m3dnow -pipe -O3 -c ../../binutils/wrstabs.c cc1: warnings being treated as errors ../../binutils/wrstabs.c: In function 'stab_tag_type': ../../binutils/wrstabs.c:1297: warning: 'size' is used uninitialized in this function make[4]: *** [wrstabs.o] Error 1 make[4]: Leaving directory `/usr/src/binutils-2.17/buildit/binutils' Workaround : It happens only when compiling with -O3. With -O3, if using --disable-werror, the test suite fails badly afterwhile. With -O2 it is OK. (Tested with gcc 4.1.1) (In reply to comment #1) > maybe the -Werror should be filtered out? Hope this can be of some help. Maybe a note in the book ? Or maybe this is up to the user of the book to be aware of this ? I remember there were a few pages a while ago, in gcc, or glibc... to signal that optimization was know to break some packages... \bye -- Nicolas FRANCOIS http://nicolas.francois.free.fr A TRUE Klingon programmer does NOT comment his code -- http://linuxfromscratch.org/mailman/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/lfs/faq.html Unsubscribe: See the above information page
