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:
Formatted output to an UTF-8 string.

Files:
lib/unistdio/u8-u8-sprintf.c
lib/unistdio/u-sprintf.h

Depends-on:
unistdio/base
unistdio/u8-u8-vsprintf

configure.ac:
gl_LIBUNISTRING_MODULE([0.9], [unistdio/u8-u8-sprintf])

Makefile.am:
if LIBUNISTRING_COMPILE_UNISTDIO_U8_U8_SPRINTF
lib_SOURCES += unistdio/u8-u8-sprintf.c
endif

Include:
"unistdio.h"

License:
LGPL

Maintainer:
Bruno Haible