I just tried to build gcc configuring it on x86_64-unknown-linux-gnu
(Fedora 10) with:
configure --enable-build-with-cxx --with-arch=core2 --with-tune=core2
--prefix=/usr/local/gcc-svn/ --enable-languages="c,c++"
--enable-__cxa_atexit --disable-multilib --enable-libssp
and ran into a bootstrap comparison failure...
Same code without --enable-build-with-cxx seems fine.
This is from trunk, rev 145701. Is this known, or should I file a bug
report...
By the way, it seems that libelf in fedora 10 seems to be good enough
for lto (test are tried and passing with the non-cxx bootstrap).
Theo.
Here is the relevant part of the bootstrap failure:
Comparing stages 2 and 3
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
Bootstrap comparison failure!
x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/vec.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/eh_globals.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/eh_alloc.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/pool_allocator.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/locale.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/mt_allocator.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/atomic.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/basic_file.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/pool_allocator.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/locale.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/mt_allocator.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/atomic.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/basic_file.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/future.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/debug.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/locale_init.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/system_error.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/future.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/debug.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/locale_init.o differs
x86_64-unknown-linux-gnu/libstdc++-v3/src/system_error.o differs
make[2]: *** [compare] Error 1
