[Bug c++/87380] Explicit instantations should use weak symbols on darwin

[iains at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87380

--- Comment #21 from Iain Sandoe <iains at gcc dot gnu.org> ---
Author: iains
Date: Mon Dec 24 13:17:28 2018
New Revision: 267409

URL: https://gcc.gnu.org/viewcvs?rev=267409&root=gcc&view=rev
Log:
Fix PR c++/87380 (ABI breakage) for Darwin.

2018-12-24  Iain Sandoe  <iain@sandoe.co.uk>

        Backport from mainline
        2018-12-06  Iain Sandoe  <iain@sandoe.co.uk>

        PR c++/87380
        * config/darwin.h (TARGET_WEAK_NOT_IN_ARCHIVE_TOC) Remove, use the
        default.
        * config/rs6000/darwin7.h (TARGET_WEAK_NOT_IN_ARCHIVE_TOC): New.


Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/config/darwin.h
    branches/gcc-7-branch/gcc/config/rs6000/darwin7.h