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 a string representation of time to a tm structure.

Files:
lib/strptime.c
m4/strptime.m4
m4/tm_gmtoff.m4

Depends-on:
time
extensions
sys_time        [test $HAVE_STRPTIME = 0]
string          [test $HAVE_STRPTIME = 0]
strcase         [test $HAVE_STRPTIME = 0]
stdbool         [test $HAVE_STRPTIME = 0]
time_r          [test $HAVE_STRPTIME = 0]

configure.ac:
gl_FUNC_STRPTIME
if test $HAVE_STRPTIME = 0; then
  AC_LIBOBJ([strptime])
  gl_PREREQ_STRPTIME
fi
gl_TIME_MODULE_INDICATOR([strptime])

Makefile.am:

Include:
<time.h>

License:
LGPLv2+

Maintainer:
glibc