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[Bug libc/18468] fnmatch wmemchr namespace


https://sourceware.org/bugzilla/show_bug.cgi?id=18468

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=aca6ea6586fb2368e6659388f55ba3d374913a86

commit aca6ea6586fb2368e6659388f55ba3d374913a86
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Wed Jun 3 13:57:40 2015 +0000

    Fix fnmatch wmemchr namespace (bug 18468).

    fnmatch brings in references to wmemchr, which isn't in all the
    standards that contain fnmatch, resulting in linknamespace test
    failures.  This patch fixes this in the usual way, making wmemchr into
    a weak alias for __wmemchr.

    Tested for x86_64 and x86 (testsuite, and that disassembly of
    installed shared libraries is unchanged by the patch).

        [BZ #18468]
        * wcsmbs/wmemchr.c (wmemchr): Rename to __wmemchr and define as
        weak alias of __wmemchr.  Use libc_hidden_weak.
        * include/wchar.h (__wmemchr): Declare.  Use libc_hidden_proto.
        * posix/fnmatch.c [HANDLE_MULTIBYTE] (MEMCHR): Use __wmemchr
        instead of wmemchr.

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

Summary of changes:
 ChangeLog        |    9 +++++++++
 NEWS             |    2 +-
 include/wchar.h  |    5 ++++-
 posix/fnmatch.c  |    2 +-
 wcsmbs/wmemchr.c |    6 ++++--
 5 files changed, 19 insertions(+), 5 deletions(-)

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