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:
alphasort() function: compare entries of a directory alphabetically

Files:
lib/alphasort.c
m4/alphasort.m4

Depends-on:
dirent
extensions

configure.ac:
gl_FUNC_ALPHASORT
if test $HAVE_ALPHASORT = 0; then
  AC_LIBOBJ([alphasort])
  gl_PREREQ_ALPHASORT
fi
gl_DIRENT_MODULE_INDICATOR([alphasort])

Makefile.am:

Include:
<dirent.h>

License:
LGPL

Maintainer:
all, glibc