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[RH143852] autoconf AC_CHECK_TYPE() macro generates compiler warnings

From: Daniel Reed
Subject: [RH143852] autoconf AC_CHECK_TYPE() macro generates compiler warnings
Date: Tue, 4 Jan 2005 20:14:29 -0500 (EST)

[From https://bugzilla.redhat.com/beta/show_bug.cgi?id=143852]

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

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


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
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.

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