https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87865
--- Comment #8 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #7 from Iain Buclaw <ibuclaw at gdcproject dot org> --- > It required removing all system includes from all dmd frontend sources, but I > think this OK now. I have verified that gcc_assert() is being called now > instead of assert(). I've now been able to build gdc/d21 on sparc-sun-solaris2.10 and i386-pc-solaris2.10 without issues. Thanks for fixing this. Rainer