Hi Simon, > On 29 Jun 2017, at 21:41, Simon Wright <si...@pushface.org> wrote: > > On 28 Jun 2017, at 18:40, Jeff Law <l...@redhat.com> wrote: >> >> On 06/09/2017 07:57 AM, Simon Wright wrote: >>> 2017-06-09 Simon Wright <si...@pushface.org> >>> >>> PR target/80556 >>> * configure.ac (stage1_ldflags): For Darwin, include -lSystem. >>> (poststage1_ldflags): likewise. >>> * configure: regenerated. >> I'm a bit confused here. Isn't -lSystem included in darwin's LIB_SPEC >> in which case the right things ought to already be happening, shouldn't it? > > The specs that involve -lSystem are
> I've rebuilt gcc-8-20170528 with this change alone (i.e. not the patch > currently posted here), successfully. > > If I propose this alternative patch, should it be a new post, or should I > continue this thread? thanks for the patch. The basic idea seems sound - as a workaround (as noted in comment #20 in the PR, we should really rationalise the libgcc/crts stuff to reflect the modern world, but these things take time...). The patch as you have it would apply to every version of Darwin. AFAICT from the published sources, i386 Darwin should be able to work with the libgcc unwinder (and all earlier Darwin *have* to) - so I’ve proposed a modified patch in the PR that makes the changes specific to m64 x86 and doesn’t make any alteration for PPC and/or Darwin < 10. HTH, Iain Iain Sandoe CodeSourcery / Mentor Embedded / Siemens
