Using built-in specs. COLLECT_GCC=./cc COLLECT_LTO_WRAPPER=/home/phoronix/gcc5/libexec/gcc/x86_64-unknown-linux-gnu/5.4.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ./configure --enable-checking=release --enable-languages=c,c++,fortran --prefix=/home/phoronix/gcc5 --disable-multilib Thread model: posix gcc version 5.4.0 (GCC)