[Bug guile/17185] hang with libgc 7.4.0

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https://sourceware.org/bugzilla/show_bug.cgi?id=17185

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=74edf51613b507d1f27d66360cd8fdd8a253e88a

commit 74edf51613b507d1f27d66360cd8fdd8a253e88a
Author: Doug Evans <xdje42@gmail.com>
Date:   Sat Jul 26 14:49:04 2014 -0700

    PR 17185

    PR 17185 describes a problem with using gdb+guile with libgc 7.4.0.
    The symptom is a hang in sigsuspend.
    [The thread referenced in the PR has the details.]
    It's not clear what the right fix is, or even where the bug is yet.
    This patch applies the same workaround Guile has applied.
    There is no functionality or real performance loss with this,
    and Guile has been using it for awhile.

        * configure.ac: Add check for header gc/gc.h.
        Add check for function setenv.
        * configure: Regenerate.
        * config.in: Regenerate.
        * guile/guile.c (_initialize_guile): Add workaround for libgc 7.4.0.

-----------------------------------------------------------------------

Summary of changes:
 gdb/ChangeLog     |    9 +++++++++
 gdb/config.in     |    6 ++++++
 gdb/configure     |   26 ++++++++++++++++++++++++++
 gdb/configure.ac  |    5 +++++
 gdb/guile/guile.c |   15 +++++++++++++++
 5 files changed, 61 insertions(+), 0 deletions(-)

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