https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84800
--- Comment #2 from Andrew Roberts <andrewm.roberts at sky dot com> --- Rebuilt with 8-20180311 snapshot, and it now builds successfully: /usr/local/gcc/bin/gcc -v Using built-in specs. COLLECT_GCC=/usr/local/gcc/bin/gcc COLLECT_LTO_WRAPPER=/usr/local/gcc-8-20180311/libexec/gcc/sparc-sun-solaris2.10/8.0.1/lto-wrapper Target: sparc-sun-solaris2.10 Configured with: ../gcc-8-20180311/configure --prefix=/usr/local/gcc-8-20180311 --with-ld=/usr/ccs/bin/ld --without-gnu-ld --with-as=/usr/ccs/bin/as --without-gnu-as --build=sparc-sun-solaris2.10 --target=sparc-sun-solaris2.10 --enable-languages=c,c++,fortran --enable-shared --enable-libssp --enable-nls --enable-threads=posix --with-included-gettext --with-libiconv-prefix=/opt/csw --with-system-zlib=/opt/csw --with-isl Thread model: posix gcc version 8.0.1 20180311 (experimental) (GCC)