Mercurial > gnulib

view modules/mbrtowc @ 37246:5cfb3a67238d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
regex: avoid glibc deadlock during configure glibc has a known bug where certain corruptions of the heap can cause malloc to default to printing a debug message that includes a backtrace, but the act of getting the backtrace uses dlopen which in turn calls into malloc, causing a recursive lock ending in deadlock. Thus, when configure is probing for a known glibc heap corruption bug, the overall configure would hang. The solution suggested by glibc developers is to force malloc to quit printing debug messages, which avoids recursive malloc. * m4/regex.m4 (gl_REGEX): Avoid recursive malloc deadlock when glibc bug 15078 in turn triggers bug 16159. Reported by Michal Privoznik. Signed-off-by: Eric Blake <eblake@redhat.com>
author Eric Blake <eblake@redhat.com>
date Tue, 03 Dec 2013 10:34:13 -0700
parents 9bcb8a0e5d5a
children 1f14c6dd175d
line wrap: on
line source

Description:
mbrtowc() function: convert multibyte character to wide character.

Files:
lib/mbrtowc.c
m4/mbrtowc.m4
m4/mbstate_t.m4
m4/locale-fr.m4
m4/locale-ja.m4
m4/locale-zh.m4
m4/codeset.m4

Depends-on:
wchar
extensions
mbsinit         [test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1]
localcharset    [test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1]
streq           [test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1]
verify          [test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1]

configure.ac:
gl_FUNC_MBRTOWC
if test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1; then
  AC_LIBOBJ([mbrtowc])
  gl_PREREQ_MBRTOWC
fi
gl_WCHAR_MODULE_INDICATOR([mbrtowc])

Makefile.am:

Include:
<wchar.h>

License:
LGPLv2+

Maintainer:
Bruno Haible