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:
Yielding the processor to other threads.

Files:
lib/glthread/yield.h
m4/yield.m4

Depends-on:
threadlib

configure.ac:
gl_YIELD

Makefile.am:
lib_SOURCES += glthread/yield.h

Include:
"glthread/yield.h"

Link:
$(LTLIBTHREAD) when linking with libtool, $(LIBTHREAD) otherwise
$(YIELD_LIB)

License:
LGPLv2+

Maintainer:
Yoann Vandoorselaere