https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86027
--- Comment #4 from Michael Teske <subscribe at teskor dot de> --- I found the fix for my problem: + 2018-02-05 Rainer Orth <r...@cebitec.uni-bielefeld.de> + + Backport from mainline + 2018-01-30 Rainer Orth <r...@cebitec.uni-bielefeld.de> + + PR bootstrap/84017 + * configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86. + * configure: Regenerate. This fixes a different problem which I didn't have with 7.3.0 (bootstrap worked fine), but I just confirmed, that disabling gcc_cv_as_shf_merge did the trick. A broken ld explains my problem. From my side this bug can be closed.