https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63773
--- Comment #17 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Francois-Xavier Coudert from comment #16) > (In reply to Iain Sandoe from comment #15) > > … the second issue - which is that we need a -B…. option for each library > > path that will be used for spec-substitution (.a for .dylib) > > The necessary -B options are already in POSTSTAGE1_HOST_EXPORTS, through > POSTSTAGE1_CXX_EXPORT. excellent. Jakub asked Paulo on-list if there was a solution to ... > > I don't think we want to bootstrap libcc1 (that was what the patch was > > removing). > > > > Probably the right example is gnattools - or something similar that only > > builds @stage#3. > > I cannot find anything in the top-level Makefile that builds at stage3 and > uses POSTSTAGE1_HOST_EXPORTS, i.e. properly builds with the final compiler. > Even gnarls uses HOST_EXPORTS, so it would probably have similar problems. > (Doesn't it? I don't know cause I never build ada.) … this ^ i.e. choosing the right one to use depending on cross/disable-bootstrap/stage#n … .. gnattools adds the -B options specifically in its Makefile. interesting - so that also implies it will be affected by the bootstrap compiler (although, of course, that pretty much has to be GCC for Ada). I must confess I'd not looked beyond the handling of certain configure options.
