From ccec0786aa3b0268635ae5d90082f2a19603c254 Mon Sep 17 00:00:00 2001
From: Przemyslaw Pawelczyk <przemoc@gmail.com>
Date: Wed, 3 Jan 2018 17:30:52 +0100
Subject: [PATCH] Makefile: Add printvars phony target.

---
 Makefile | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Makefile b/Makefile
index 33e9c3d..edb1dc6 100644
--- a/Makefile
+++ b/Makefile
@@ -116,6 +116,16 @@ MANDIR := ${DATAROOTDIR}/man
  uninstall uninstall-bins uninstall-libs uninstall-includes \
  clean distclean \
  dep \
+ printvars \
+
+### Debug
+printvars:
+	@$(foreach V, $(sort $(.VARIABLES)), \
+	   $(if $(filter-out environment% default automatic, $(origin $V)), \
+	        $(warning $V = $(value $V)) \
+	        $(if $(findstring ^$(value $V)%,^$($V)%),,$(warning $V == $($V))) \
+	   ) \
+	)
 
 ### Install tools
 INSTALL := install
-- 
2.11.4.GIT