[Bug regex/18495] regcomp wctype namespace

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https://sourceware.org/bugzilla/show_bug.cgi?id=18495

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9dd6b7799a0b04034f2d2266845c64a309b015a3

commit 9dd6b7799a0b04034f2d2266845c64a309b015a3
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Fri Jun 5 20:04:47 2015 +0000

    Fix regex wctype namespace (bug 18495).

    regcomp brings in references to various wctype functions that aren't
    in all the standards including regcomp.  This patch fixes this in the
    usual way by using the __* versions of these functions (which already
    exist, but some didn't have libc_hidden_proto / libc_hidden_def
    before).

    Tested for x86_64 and x86 (testsuite, and that installed stripped
    shared libraries are unchanged by the patch).  (Other wide character
    function references from the regex code mean that this patch by itself
    doesn't fix any XFAILed linknamespace test failures; further patches
    will be needed for that.)

        [BZ #18495]
        * wctype/wcfuncs.c (__iswalnum): Use libc_hidden_def.
        (__iswlower): Likewise.
        * include/wctype.h (__iswalnum): Declare.  Use libc_hidden_proto.
        (__iswlower): Likewise.
        * posix/regcomp.c (re_compile_fastmap_iter): Call __towlower
        instead of towlower.
        * posix/regex_internal.c (build_wcs_upper_buffer): Call __iswlower
        instead of iswlower.  Call __towupper instead of towupper.
        * posix/regex_internal.h (IS_WIDE_WORD_CHAR): Call __iswalnum
        instead of iswalnum.

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

Summary of changes:
 ChangeLog              |   14 ++++++++++++++
 NEWS                   |    2 +-
 include/wctype.h       |    4 ++++
 posix/regcomp.c        |    4 ++--
 posix/regex_internal.c |    8 ++++----
 posix/regex_internal.h |    2 +-
 wctype/wcfuncs.c       |    2 ++
 7 files changed, 28 insertions(+), 8 deletions(-)

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