TAR=`which gtar`; \
[ -n "$$TAR" -a -x "$$TAR" ] || TAR=`which tar`; \
echo "TAR:=$$TAR" >> $@; \
- if $$TAR --version 2>&1 | grep 'GNU' >/dev/null; then \
- echo "TAR_WILDCARDS:=--wildcards" >> $@; \
- fi; \
+ ZCAT=`which gzcat`; \
+ [ -n "$$ZCAT" -a -x "$$ZCAT" ] || ZCAT=`which zcat`; \
+ echo "ZCAT:=$$ZCAT" >> $@; \
)