?RCS:
?RCS: Copyright (c) 2018 Raphael Manfredi
?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:
?MAKE:d_memrchr: Trylink cat
?MAKE:	-pick add $@ %<
?S:d_memrchr:
?S:	This variable conditionally defines the HAS_MEMRCHR symbol, which
?S:	indicates to the C program that the memrchr() routine is available
?S:	to scan a block of memory backwards for a character.
?S:.
?C:HAS_MEMRCHR:
?C:	This symbol, if defined, indicates that the memrchr routine is available
?C:	to scan a block of memory backwards for a character.
?C:	If undefined, roll your own.
?C:.
?H:#$d_memrchr HAS_MEMRCHR		/**/
?H:.
?LINT:set d_memrchr
: see if memrchr exists
$cat >try.c <<EOC
#include <string.h>
int main(void)
{
	static char s[] = "xxx";
	static size_t n = sizeof(s);
	void *p;
	p = memrchr(s, 'x', n);
	return p ? 0 : 1;
}
EOC
cyn=memrchr
set d_memrchr
eval $trylink