view modules/hash-pjw @ 37246:5cfb3a67238d

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>
author Eric Blake <eblake@redhat.com>
date Tue, 03 Dec 2013 10:34:13 -0700
parents b510b808ad3e
children
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Description:
Compute a hash value for a NUL-terminated string.

Files:
lib/hash-pjw.h
lib/hash-pjw.c

Depends-on:

configure.ac:

Makefile.am:
lib_SOURCES += hash-pjw.h hash-pjw.c

Include:
"hash-pjw.h"

License:
LGPLv2+

Maintainer:
Jim Meyering