https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65351
--- Comment #7 from Iain Sandoe <iains at gcc dot gnu.org> --- BOOT_CFLAGS has included -mdynamic-no-pic for a long time (before my time here), so I'm not aware of what criteria were discussed then, however -mdynamic-non-pic cannot be overridden by fPIC. I don't have spare cycles to investigate a more fine-grained approach in the short-term (although it seems like a reasonable way forward). Anyway, in the light of comment #6 I'm abandoning this patch.