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>

Description:
wcsnrtombs() function: convert wide string to string.

Files:
lib/wcsnrtombs.c
lib/wcsnrtombs-impl.h
lib/wcsrtombs-state.c
m4/wcsnrtombs.m4
m4/mbrtowc.m4
m4/mbstate_t.m4
m4/locale-ja.m4
m4/locale-zh.m4
m4/codeset.m4

Depends-on:
wchar
extensions
wcrtomb         [test $HAVE_WCSNRTOMBS = 0 || test $REPLACE_WCSNRTOMBS = 1]

configure.ac:
gl_FUNC_WCSNRTOMBS
if test $HAVE_WCSNRTOMBS = 0 || test $REPLACE_WCSNRTOMBS = 1; then
  AC_LIBOBJ([wcsnrtombs])
  AC_LIBOBJ([wcsrtombs-state])
  gl_PREREQ_WCSNRTOMBS
fi
gl_WCHAR_MODULE_INDICATOR([wcsnrtombs])

Makefile.am:

Include:
<wchar.h>

License:
LGPL

Maintainer:
Bruno Haible