patch_funcs.sh: return immediately if no patches.

--HG--
extra : convert_revision : 2c87a0d74bc7a8f340213627b0b80374eb75cd44

utils/sh/configure_funcs.sh

@@ -51,7 +51,6 @@ configure_src_phase()
 	  "$build_style" = "only-install" -o	\
 	  "$build_style" = "custom-install" ] && return 0
 
-
 	# cross compilation vars.
 	if [ -n "$cross_compiler" ]; then
 		. $XBPS_HELPERSDIR/cross-compilation.sh

utils/sh/patch_funcs.sh

@@ -40,6 +40,7 @@ apply_tmpl_patches()
 	fi
 
 	[ -z "$patch_args" ] && patch_args="-p0"
+	[ -z "$patch_files" ] && return 0
 
 	#
 	# If package needs some patches applied before building,