[Bug ld/19553] linking against libs that require pthreads breaks due to symbol changes

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=19553

--- Comment #5 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The binutils-2_26-branch branch has been updated by H.J. Lu
<address@hidden>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f558a73bafecee6d3cd45031e44e6e40f80fb241

commit f558a73bafecee6d3cd45031e44e6e40f80fb241
Author: H.J. Lu <address@hidden>
Date:   Mon Feb 1 15:49:52 2016 -0800

    Don't add DT_NEEDED for unmatched symbol

    Don't add DT_NEEDED if a symbol from a library loaded via DT_NEEDED
    doesn't match the symbol referenced by regular object.

    Backport from master

    bfd/

        PR ld/19553
        * elflink.c (elf_link_add_object_symbols): Don't add DT_NEEDED
        if a symbol from a library loaded via DT_NEEDED doesn't match
        the symbol referenced by regular object.

    ld/testsuite/

        PR ld/19553
        * testsuite/ld-elf/indirect.exp: Run tests for PR ld/19553.
        * testsuite/ld-elf/pr19553.map: New file.
        * testsuite/ld-elf/pr19553.map: Likewise.
        * testsuite/ld-elf/pr19553a.c: Likewise.
        * testsuite/ld-elf/pr19553b.c: Likewise.
        * testsuite/ld-elf/pr19553b.out: Likewise.
        * testsuite/ld-elf/pr19553c.c: Likewise.
        * testsuite/ld-elf/pr19553c.out: Likewise.
        * testsuite/ld-elf/pr19553d.c: Likewise.
        * testsuite/ld-elf/pr19553d.out: Likewise.

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