fix .gitignore: only ignore 'perl' in root of repo, not U/perl subdir

[metaconfig.git] / U / perl / i_stdbool.U

?RCS: $Id: i_stdbool.U,v $
?RCS:
?RCS: Copyright (c) 2011 H.Merijn Brand
?RCS:
?RCS: You may distribute under the terms of either the GNU General Public
?RCS: License or the Artistic License, as specified in the README file.
?RCS:
?MAKE:i_stdbool: cat Compile rm_try Setvar
?MAKE:	-pick add $@ %<
?S:i_stdbool:
?S:	This variable conditionally defines the I_STDBOOL symbol, which
?S:	indicates to the C program that <stdbool.h> exists and should
?S:	be included.
?S:.
?C:I_STDBOOL:
?C:	This symbol, if defined, indicates that <stdbool.h> exists and
?C:	can be included.
?C:.
?H:#$i_stdbool	I_STDBOOL		/**/
?H:.
?LINT:set i_stdbool
: see if stdbool is available
: we want a real compile instead of Inhdr because some Solaris systems
: have stdbool.h, but it can only be used if the compiler indicates it
: is sufficiently c99-compliant.
echo " "
$cat >try.c <<EOCP
#include <stdio.h>
#include <stdbool.h>
int func(bool x)
{
    return x ? 1 : 0;
}
int main(int argc, char **argv)
{
    return func(0);
}
EOCP
set try
if eval $compile; then
	echo "<stdbool.h> found." >&4
	val="$define"
else
	echo "<stdbool.h> NOT found." >&4
	val="$undef"
fi
$rm_try
set i_stdbool
eval $setvar