X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=rules.mk;h=7d3516bc4272e1186dde2ceb89145cde7c5ad19d;hb=36d3a76afb32eda306753361abf13c3d4c41e555;hp=49044c8cfbf4b87a8468742d4cb8abe51d62d4d9;hpb=8803d870832f71a3997d6afbd1a5cd0de1ba017f;p=openwrt.git

diff --git a/rules.mk b/rules.mk
index 49044c8cfb..7d3516bc42 100644
--- a/rules.mk
+++ b/rules.mk
@@ -254,4 +254,16 @@ all:
 FORCE: ;
 .PHONY: FORCE
 
+val.%:
+	@$(if $(filter undefined,$(origin $*)),\
+		echo "$* undefined" >&2, \
+		echo '$(subst ','"'"',$($*))' \
+	)
+
+var.%:
+	@$(if $(filter undefined,$(origin $*)),\
+		echo "$* undefined" >&2, \
+		echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
+	)
+
 endif #__rules_inc