Bug 143852

Summary:	autoconf AC_CHECK_TYPE() macro generates compiler warnings
Product:	Red Hat Enterprise Linux 4	Reporter:	Michael Jennings (KainX) <mej>
Component:	autoconf	Assignee:	Karsten Hopp <karsten>
Status:	CLOSED DEFERRED	QA Contact:	Brian Brock <bbrock>
Severity:	low	Docs Contact:
Priority:	medium
Version:	4.0
Target Milestone:	---
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Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	Bug Fix
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Last Closed:	2006-05-08 12:07:48 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Michael Jennings (KainX) 2004-12-30 01:37:08 UTC

Description of problem:
Use of the AC_CHECK_TYPE() autoconf macro fails when the compiler
flags contain -Werror due to missing prototypes for longval() and
ulongval().

Version-Release number of selected component (if applicable):

autoconf-2.59-5

How reproducible:

Every time.

Steps to Reproduce:
1.  Use AC_CHECK_TYPE(char, 1) in configure.in, or download
libast-0.6.1.tar.gz from http://www.eterm.org/download/ and use that.
2.  export CFLAGS='-O0 -g3 -march=pentiumpro -W -Wall
-Wmissing-prototypes -Wmissing-declarations -Wall -Werror -std=c99
-pedantic'
3.  ./autogen.sh && make distcheck  
  
Actual results:

checking size of char... configure: error: cannot compute sizeof
(char), 77
See `config.log' for more details.
make: *** [distcheck] Error 1

Expected results:

configure script should complete without errors though "make
distcheck" will fail later on for other reasons.

Additional info:

Comment 1 Daniel Reed 2005-01-21 19:43:48 UTC

This is now fixed in upstream Autoconf CVS, and will be available in the next
upstream release.

Comment 4 Karsten Hopp 2006-05-08 12:07:48 UTC

added patch to CVS so that this doesn't get lost.
this will be fixed when we need to issue the next erratum