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>

.deps
Makefile
alloca.h
charset.alias
fnmatch.h
fts.h
getdate.c
getdate.tab.c
getopt.h
lstat.c
poll.h
ref-add.sed
ref-del.sed
search.h
stat.c
stdbool.h
stdint.h
sysexit.h
t-fpending
unlocked-io.h