https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90665
--- Comment #2 from Thorsten A. Knieling <thorsten.knieling at googlemail dot com> --- May be I use the wrong configure options. I used a gcc compiler rather then an Solaris compiler to build gcc 9.1.0. My configure looks like this ../configure --prefix=<path>/gcc-solaris-9.1.0 --enable-languages=c,c++,go,objc,lto Could you give an hint?