cronie: unbreak musl builds

srcpkgs/cronie/template

@@ -33,14 +33,14 @@ alternatives="
  crond:crond.8:/usr/share/man/man8/cronie-crond.8
 "
 
-case "$XBPS_TARGET_MACHINE" in
+if [ "$XBPS_TARGET_LIBC" = "musl" ]; then
-	*-musl)	makedepends+=" musl-obstack" ;;
+	makedepends+=" musl-obstack"
-esac
+fi
 
-pre_build() {
+pre_configure() {
-	case "$XBPS_TARGET_MACHINE" in
+	if [ "$XBPS_TARGET_LIBC" = "musl" ]; then
-		*-musl) sed -i Makefile */Makefile -e "s; -lpam; -lobstack&;" ;;
+		export LIBS="-lobstack"
-	esac
+	fi
 }
 
 post_install() {