SRCS	:= $(wildcard *.xml *.sgml)
NSGMLS	:= $(shell if command -v onsgmls 2>/dev/null; then	 \
			:					;\
		   elif command -v nsgmls 2>/dev/null; then	 \
			:					;\
		   else						 \
			echo "false"				;\
			echo "warning: no cvs2cl found" 1>&2	;\
		   fi)

# settings for XML files
export SP_CHARSET_FIXED = YES
export SP_ENCODING = XML

.PHONY: validate
validate:	$(addsuffix .validate,$(SRCS))

%.validate : %
	$(NSGMLS) -wxml -wall -gues $<