https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79157
--- Comment #4 from Igor Kozhukhov <ikozhukhov at gmail dot com> --- how to use test files: gcc -DNDEBUG -g -O2 -mcpu=v9 -D_REENTRANT -finline-functions -fno-strict-aliasing -I. -c conftest.c gfortran -g -O2 conftestf.f conftest.o -o conftest i have tested by gcc-5.4 - gfortran failed, but with gcc-6.3 - gfortran-6 works fine. and i was able to build openmpi on sparc by gcc-6.3
