[Bug target/67973] All the tests for -gstabs* fail on x86_64-apple-darwin14 with Xcode 7

["dominiq at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67973

--- Comment #22 from dominiq at gcc dot gnu.org ---
Author: dominiq
Date: Sun May 22 08:53:32 2016
New Revision: 236565

URL: https://gcc.gnu.org/viewcvs?rev=236565&root=gcc&view=rev
Log:
2016-05-22  Iain Sandoe  <iain@codesourcery.com>
            Dominique d'Humieres  <dominiq@lps.ens.fr>

        Backport from mainline
        2015-12-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        gcc:
        PR target/67973
        * configure.ac (gcc_cv_as_stabs_directive): New test.
        * configure: Regenerate.
        * config.in: Regenerate.
        * config/darwin.h (DBX_DEBUGGING_INFO): Wrap in
        HAVE_AS_STABS_DIRECTIVE.
        (PREFERRED_DEBUGGING_TYPE): Likewise.
        * config/i386/darwin.h (PREFERRED_DEBUGGING_TYPE): Only include
        DBX_DEBUG if HAVE_AS_STABS_DIRECTIVE.

        * doc/sourcebuild.texi (Effective-Target Keywords, Environment
        attributes): Document stabs.

        gcc/testsuite:
        PR target/67973

        * lib/target-supports.exp (check_effective_target_stabs): New proc.
        * g++.dg/cpp0x/alias-decl-debug-0.C: Restrict to stabs targets.
        * g++.dg/other/PR23205.C: Likewise.
        * g++.dg/other/pr23205-2.C: Likewise.
        * gcc.dg/20040813-1.c: Likewise.
        * gcc.dg/darwin-20040809-2.c: Likewise.
        * objc.dg/stabs-1.m: Likewise.


Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/config.in
    branches/gcc-4_9-branch/gcc/config/darwin.h
    branches/gcc-4_9-branch/gcc/config/i386/darwin.h
    branches/gcc-4_9-branch/gcc/configure
    branches/gcc-4_9-branch/gcc/configure.ac
    branches/gcc-4_9-branch/gcc/doc/sourcebuild.texi
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_9-branch/gcc/testsuite/g++.dg/cpp0x/alias-decl-debug-0.C
    branches/gcc-4_9-branch/gcc/testsuite/g++.dg/other/PR23205.C
    branches/gcc-4_9-branch/gcc/testsuite/g++.dg/other/pr23205-2.C
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/20040813-1.c
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/darwin-20040809-2.c
    branches/gcc-4_9-branch/gcc/testsuite/lib/target-supports.exp
    branches/gcc-4_9-branch/gcc/testsuite/objc.dg/stabs-1.m