https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72859
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Comment on attachment 39094 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39094 config.log from the gcc subdirectory configure:5756: checking size of short configure:5776: result: 0 ... configure:5824: checking size of long configure:5844: result: 0 That is why this is failing ...