https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118981
--- Comment #15 from Erich Löw <Erich.Loew at outlook dot com> --- As proposed I do now: - I deleted my whole BUILD dir - I recreated BUILD dir as empty dir - I unset CFLAGS, CPPFLAGS, CCFLAGS and CXXFLAGS - I rerun configure steps in BUILD dir - I say make all - Now compiling .... - In meantime boiling my breakfast eggs. The following shows now in my BUILD xterm nothing; thi is ok so I guess. root:/home/SETUP/GNU/gcc/BUILD> env | grep FLAG root:/home/SETUP/GNU/gcc/BUILD> I think I have to provide for the topic fat Ryzen and 64 Gigs of RAM to speed-up my turnaround :-)