https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71767
--- Comment #46 from Iain Sandoe <iains at gcc dot gnu.org> --- Author: iains Date: Sun Nov 27 14:29:36 2016 New Revision: 242894 URL: https://gcc.gnu.org/viewcvs?rev=242894&root=gcc&view=rev Log: [Darwin, config] Arrange for ld64 to be detected as Darwin's linker. This is an initial patch in a series that converts Darwin's configury to detect ld64 features, rather than the current process of hard-coding them on target system version. A ld64-compatible linker is currently required and assumed by Darwin. If a DEFAULT_LINKER is set via --with-ld= then this will be tested to see if it is ld64. The ld64 version is determined for the chosen ld and this is exported for use in setting a default value for -mtarget-linker (needed for run-time code-gen changes to section choices). The support for -rdynamic is converted to be detected at config time, or by the ld64 version if that is found. gcc/ 2016-11-27 Iain Sandoe <i...@codesourcery.com> PR target/71767 * configure.ac (with-ld64): New var, set for Darwin, set on detection of ld64, gcc_cv_ld64_export_dynamic: New, New test. * config/darwin.h: Use LD64_HAS_DYNAMIC export. DEF_LD64: New, define. * config/darwin10.h(DEF_LD64): Update for this target version. * config/darwin12.h(LINK_GCC_C_SEQUENCE_SPEC): Remove rdynamic test. (DEF_LD64): Update for this target version. * configure: Regenerated. * config.in: Regenerated. Modified: trunk/gcc/ChangeLog trunk/gcc/config.in trunk/gcc/config/darwin.h trunk/gcc/config/darwin10.h trunk/gcc/config/darwin12.h trunk/gcc/configure trunk/gcc/configure.ac
