view modules/iswctype @ 37246:5cfb3a67238d

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 6d2f5db1bc07
children 1f14c6dd175d
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Description:
iswctype() function: test whether a wide character has a given property.

Status:
obsolete

Notice:
This module is obsolete.

Files:
lib/iswctype.c
lib/iswctype-impl.h
m4/iswctype.m4

Depends-on:
wctype-h

configure.ac:
gl_FUNC_ISWCTYPE
if test $HAVE_WCTYPE_T = 0; then
  AC_LIBOBJ([iswctype])
fi
gl_WCTYPE_MODULE_INDICATOR([iswctype])

Makefile.am:

Include:
<wctype.h>

License:
LGPL

Maintainer:
Bruno Haible