http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49363
--- Comment #14 from vincenzo Innocente <vincenzo.innocente at cern dot ch> 2012-05-08 09:18:01 UTC --- added your patch on top of c++ -v Using built-in specs. COLLECT_GCC=c++ COLLECT_LTO_WRAPPER=/afs/cern.ch/user/i/innocent/w2/libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ./configure --prefix=/afs/cern.ch/user/i/innocent/w2 --enable-languages=c,c++,fortran -enable-gold=yes --enable-lto --with-build-config=bootstrap-lto --with-gmp-lib=/usr/local/lib64 --with-mpfr-lib=/usr/local/lib64 -with-mpc-lib=/usr/local/lib64 --enable-cloog-backend=isl --with-cloog=/usr/local --with-ppl-lib=/usr/local/lib64 CFLAGS='-O2 -ftree-vectorize -fPIC' CXXFLAGS='-O2 -fPIC -ftree-vectorize -fvisibility-inlines-hidden -march=native' -enable-libitm -disable-multilib : (reconfigured) ./configure --prefix=/afs/cern.ch/user/i/innocent/w2 -enable-gold=yes --enable-lto --with-build-config=bootstrap-lto --with-gmp-lib=/usr/local/lib64 --with-mpfr-lib=/usr/local/lib64 -with-mpc-lib=/usr/local/lib64 --enable-cloog-backend=isl --with-cloog=/usr/local --with-ppl-lib=/usr/local/lib64 CFLAGS='-O2 -ftree-vectorize -fPIC' CXXFLAGS='-O2 -fPIC -ftree-vectorize -fvisibility-inlines-hidden -march=native' -enable-libitm -disable-multilib CC=gcc CXX=g++ --enable-languages=c,c++,fortran,lto --no-create --no-recursion Thread model: posix gcc version 4.8.0 20120508 (experimental) [trunk revision 187276] (GCC) configured as above ad got ../.././gcc/multiversion.c:613: error: undefined reference to 'cgraph_add_to_same_comdat_group' collect2: ld returned 1 exit status make[3]: *** [lto1] Error 1 make[3]: *** Waiting for unfinished jobs.... ../.././gcc/multiversion.c:613: error: undefined reference to 'cgraph_add_to_same_comdat_group' collect2: ld returned 1 exit status make[3]: *** [cc1] Error 1 ../.././gcc/multiversion.c:613: error: undefined reference to 'cgraph_add_to_same_comdat_group' collect2: ld returned 1 exit status make[3]: *** [cc1plus] Error 1 rm gcov.pod cpp.pod gfdl.pod fsf-funding.pod gcc.pod make[3]: Leaving directory `/home/data/newsoft/gcc-trunk/host-x86_64-unknown-linux-gnu/gcc' make[2]: *** [all-stage1-gcc] Error 2 make[2]: Leaving directory `/home/data/newsoft/gcc-trunk' make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory `/home/data/newsoft/gcc-trunk' make: *** [all] Error 2
