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:
Locale dependent classification of a response as matching "yes" or "no".

Files:
lib/rpmatch.c
m4/rpmatch.m4

Depends-on:
stdlib
extensions
stdbool         [test $HAVE_RPMATCH = 0]
gettext-h       [test $HAVE_RPMATCH = 0]
regex           [test $HAVE_RPMATCH = 0]
strdup          [test $HAVE_RPMATCH = 0]

configure.ac:
gl_FUNC_RPMATCH
if test $HAVE_RPMATCH = 0; then
  AC_LIBOBJ([rpmatch])
  gl_PREREQ_RPMATCH
fi
gl_STDLIB_MODULE_INDICATOR([rpmatch])

Makefile.am:

Include:
<stdlib.h>

Link:
$(LTLIBINTL) when linking with libtool, $(LIBINTL) otherwise

License:
GPL

Maintainer:
Jim Meyering