https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67728
--- Comment #21 from Andrew Roberts <andrewm.roberts at sky dot com> --- Tested with: gcc-6-20160313 and in-tree: gmp-6.1.99-20160321 mpc-1.0.3 mpfr-3.1.4 isl-0.16.1 On: x86_64 Centos 7 (Full bootstrap) This is Ok. /usr/local/gcc-6.0.0/bin/gcc -v Using built-in specs. COLLECT_GCC=/usr/local/gcc-6.0.0/bin/gcc COLLECT_LTO_WRAPPER=/usr/local/gcc-6.0.0/libexec/gcc/x86_64-unknown-linux-gnu/6.0.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc-6.0.0/configure --prefix=/usr/local/gcc-6.0.0 --program-suffix= --disable-werror --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-plugin --enable-initfini-array --enable-gnu-indirect-function --enable-lto --with-isl --enable-languages=c,c++,fortran --disable-libgcj --with-tune=generic --enable-multilib --with-arch_32=i686 --host=x86_64-unknown-linux-gnu --build=x86_64-unknown-linux-gnu --with-ld=/usr/local/bin/ld --with-gnu-ld --with-as=/usr/local/bin/as --with-gnu-as --enable-bootstrap Thread model: posix gcc version 6.0.0 20160313 (experimental) (GCC) /usr/local/bin/ld -v GNU ld (GNU Binutils) 2.26.20160125 aarch64 Arch Linux Arm (ODroid-C2) (not stable enough to bootstrap) This is Ok. /usr/local/gcc-6.0.0/bin/gcc -v Using built-in specs. COLLECT_GCC=/usr/local/gcc-6.0.0/bin/gcc COLLECT_LTO_WRAPPER=/usr/local/gcc-6.0.0/libexec/gcc/aarch64-unknown-linux-gnu/6.0.0/lto-wrapper Target: aarch64-unknown-linux-gnu Configured with: ../gcc-6.0.0/configure --prefix=/usr/local/gcc-6.0.0 --program-suffix= --disable-werror --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-plugin --enable-initfini-array --enable-gnu-indirect-function --enable-lto --with-isl --enable-languages=c,c++,fortran --disable-libgcj --enable-clocale=gnu --disable-libstdcxx-pch --enable-install-libiberty --disable-multilib --enable-shared --enable-clocale=gnu --with-arch-directory=aarch64 --enable-multiarch --host=aarch64-unknown-linux-gnu --build=aarch64-unknown-linux-gnu --with-arch=armv8-a --disable-bootstrap Thread model: posix gcc version 6.0.0 20160313 (experimental) (GCC) armv7l Arch Linux Arm (Raspberry Pi 3) (not bootstrapped yet due to build time) I've not got this working yet, not sure if the new GMP is the issue or changes in my build scripts. I'll go back to released GMP 6.1 and my working script and then post the results later today or early tomorrow.
