https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107235
--- Comment #2 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #1 from Gaius Mulley <gaius at gcc dot gnu.org> --- > Now fixed. I've added a fclose to function mcflex_openSource in mc.flex. Confirmed on all of i386-pc-solaris2.11, amd64-pc-solaris2.11, and sparcv9-sun-solaris2.11. Thanks. Rainer