?RCS: Copyright (c) 2012-2012, H.Merijn Brand
?RCS:
?RCS: You may redistribute only under the terms of the Artistic License,
?RCS: as specified in the README file that comes with the distribution.
?RCS: You may reuse parts of this distribution only within the terms of
?RCS: that same Artistic License; a copy of which may be found at the root
?RCS: of the source tree for dist 4.0.
?RCS:
?RCS: Original Author: H.Merijn Brand
?RCS:
?MAKE:d_isblank: cc cat ccflags ldflags rm libs Setvar
?MAKE:	-pick add $@ %<
?S:d_isblank:
?S:	This variable conditionally defines the HAS_ISBLANK constant,
?S:	which indicates to the C program that isblank() is available.
?S:.
?C:HAS_ISBLANK:
?C:	This manifest constant lets the C program know that isblank
?C:	is available.
?C:.
?H:#$d_isblank HAS_ISBLANK		/**/
?H:.
?LINT:set d_isblank
?X: Can't use Inlibc because isblank() might be a macro.
: Look for isblank
echo " "
$cat >isblank.c <<'EOCP'
#include <stdio.h>
#include <ctype.h>
int main() {
	int c = ' ';
	if (isblank(c))
		return 0 ;
	else
		return 1 ;
}
EOCP
if $cc $ccflags $ldflags -o isblank isblank.c $libs >/dev/null 2>&1 ; then
	echo "isblank() found." >&4
	val="$define"
else
	echo "isblank() NOT found." >&4
	val="$undef"
fi
set d_isblank
eval $setvar
$rm -f isblank*