extra debugging

diff --git a/debian/rules b/debian/rules
index 7992190..43e9503 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -315,3 +315,8 @@ binary-arch: build-arch
 binary: binary-arch binary-indep
 
 .PHONY: binary binary-arch binary-indep build build-arch build-indep clean
+
+ifneq (,$(strip ${___DISPLAY_MAKEVARS}))
+$(foreach var,${___DISPLAY_MAKEVARS},$(info $(strip ${var})=${$(strip ${var})}))
+$(error ___DISPLAY_MAKEVARS finished for ${___DISPLAY_MAKEVARS})
+endif