From: Jo-Philipp Wich <jow@openwrt.org>
Date: Sun, 10 Oct 2010 22:40:44 +0000 (+0000)
Subject: [buildroot] Add two debug rules the examine the values of runtime make variables.
X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fsvn-archive%2Farchive.git;a=commitdiff_plain;h=e876351237dc9691f60a2965fe6ddb5eee0d3b8b;hp=5e17955fd5a5acdddf918329619979938906607c

[buildroot] Add two debug rules the examine the values of runtime make variables.
Based on patch by Philip Prindeville <philipp@redfish-solutions.com>


SVN-Revision: 23389
---

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