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:
Convert string to 'long' or 'unsigned long', with error checking.

Files:
lib/xstrtol.h
lib/xstrtol.c
lib/xstrtoul.c
lib/xstrtol-error.c
m4/xstrtol.m4

Depends-on:
exitfail
error
getopt-gnu
gettext-h
intprops
inttypes-incomplete

configure.ac:
gl_XSTRTOL

Makefile.am:
lib_SOURCES += xstrtol.c xstrtoul.c xstrtol-error.c

Include:
"xstrtol.h"

License:
GPL

Maintainer:
Jim Meyering