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>

This directory contains metainformation about the gnulib modules, one or two
files per module. These files are used by gnulib-tool.

For every module,
  - the file <module> is the metainformation about the library code of the
    module,
  - the file <module>-tests is the metainformation about the unit test of
    the module (optional but recommended).

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  Copyright (C) 2002-2013 Free Software Foundation, Inc.
  Copying and distribution of this file, with or without modification,
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