https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107233
--- 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. configure.ac tests for python3 and Make-lang.in only invokes > python3 if it were found. Confirmed on i386-pc-solaris2.11 (Solaris 11.3). However, I still think using AM_PATH_PYTHON as I've suggested initially to handle systems that *do* have Python 3, but by another name (python3.4 here). Right now, only a couple of .texi files are missing, though, so the effect of staying with you solution is minor. I don't know if this will change in the future if more depends on a working Python 3 installation. Thanks. Rainer