https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105507
--- Comment #9 from Christoph Reiter <reiter.christoph at gmail dot com> --- (In reply to Eric Botcazou from comment #8) > > We currently link: > > > > shared: gmp, winpthread, zlib, zstd > > static: mpc, mpfr, isl > > > > Not for any particular gcc related reason I think, some dependent packages > > have static/shared builds, some don't. > > Why didn't I think of that for PR ada/100486? Sorry, I didn't know this was a problem :) I'm not quite sure how I ended up maintaining this downstream... but here we are. > So the fix should have been > to add -shared-libgcc to GCC_LINKERFLAGS in > gcc/ada/gcc-interface/Make-lang.in: > > # Strip -Werror during linking for the LTO bootstrap > GCC_LINKERFLAGS = $(filter-out -Werror, $(ALL_LINKERFLAGS)) -shared-libgcc > > in your setup since you link gnat1 with shared libraries. This should > override the -static-libgcc in ALL_LINKERFLAGS inherited from toplevel. > > So you need to to it 1) for GCC 11: rebuild it and reinstall it 2) for GCC > 12: build it with the patched GCC 11. Note that this means that GCC 11 is > currently not fully functional anyway. Thanks for the detailed instructions. I'll give that a try. I'm wondering if there are any downsides to just removing "-static-libgcc" from both "--with-stage1-ldflags" and "--with-boot-ldflags". Or is only ada using exceptions in GCC? Or should we try linking everything statically to avoid this alltogether?
