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>

Files:
tests/test-math-c++.cc
tests/test-math-c++2.cc
tests/signature.h

Status:
c++-test

Depends-on:
ansi-c++-opt

configure.ac:

Makefile.am:
if ANSICXX
TESTS += test-math-c++
check_PROGRAMS += test-math-c++
test_math_c___SOURCES = test-math-c++.cc test-math-c++2.cc
# These link dependencies are needed on IRIX 6.5 with cc.
test_math_c___LDADD = $(LDADD) $(COPYSIGNL_LIBM) $(RINT_LIBM) $(RINTL_LIBM)
endif