http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55925
--- Comment #4 from lailavrazda1979 at gmail dot com 2013-01-14 21:26:36 UTC --- I tried building several compilers (4.7.2), none of which understand the '-mfxsr' option. One was configured with: ../gcc-4.7.2/configure --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu --target=x86_64-w64-mingw32 --prefix=$CROSS_DIR --libexecdir=$CROSS_DIR/lib --enable-clocale=gnu --enable-__cxa_atexit --enable-languages=c,c++ --enable-targets=all --enable-cloog-backend=ppl --disable-shared --disable-nls --disable-werror --with-host-libstdcxx="-lstdc++ -lsupc++" --with-local-prefix=$CROSS_DIR --with-sysroot=$CROSS_DIR --with-ppl=$CROSS_DIR --with-cloog=$CROSS_DIR make all-gcc && make install-gcc After that, I build the mingw-w64 library, went back to my GCC build dir, and did: make && make install
