view modules/stdbool @ 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 da2a4fc52ded
children 6758fa38915e 1f14c6dd175d
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Description:
An <stdbool.h> that nearly conforms to C99.
(Nearly: casts to bool may not work.)

Files:
lib/stdbool.in.h
m4/stdbool.m4

Depends-on:

configure.ac:
AM_STDBOOL_H

Makefile.am:
BUILT_SOURCES += $(STDBOOL_H)

# We need the following in order to create <stdbool.h> when the system
# doesn't have one that works.
if GL_GENERATE_STDBOOL_H
stdbool.h: stdbool.in.h $(top_builddir)/config.status
	$(AM_V_GEN)rm -f $@-t $@ && \
	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
	  sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool.in.h; \
	} > $@-t && \
	mv $@-t $@
else
stdbool.h: $(top_builddir)/config.status
	rm -f $@
endif
MOSTLYCLEANFILES += stdbool.h stdbool.h-t

Include:
<stdbool.h>

License:
LGPLv2+

Maintainer:
Bruno Haible