.POSIX:
.SILENT:

AWK = awk
AWKS = \
	"busybox awk" \
	"gawk --posix" \
	"gawk" \
	"mawk" \
	"original-awk" \

MDLINT = mdlint

test: $(MDLINT)
	printf "%-16s" "$(AWK):"
	bash -c "exec diff -u test.out <($(AWK) -f $(MDLINT) test.in)"
	echo " OK"

test-awks:
	for awk in $(AWKS); do \
		$$awk "BEGIN { exit }" 2>/dev/null || continue; \
		$(MAKE) -s AWK="$$awk" test; \
	done

lint:
	gawk --lint --posix -We $(MDLINT) test.in 2>&1 >/dev/null \
	| grep . || status="$$?" && test "$${status:-0}" -eq 1

sanity: lint test-awks