From: Daniel Dunbar <daniel@zuster.org>
Date: Sat, 21 Feb 2009 20:42:39 +0000 (+0000)
Subject: Add makefile debugging target; use "make print-FOO" to print the
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=92acef0e9409d782e5ec829c4acd56242ad83586;p=oota-llvm.git

Add makefile debugging target; use "make print-FOO" to print the
value/definition/origin of FOO.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65245 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/Makefile.rules b/Makefile.rules
index 52a61109d6e..06ffe005da7 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -1765,3 +1765,11 @@ printvars::
 	$(Echo) "SubDirs      : " '$(SubDirs)'
 	$(Echo) "ProjLibsPaths: " '$(ProjLibsPaths)'
 	$(Echo) "ProjLibsOptions: " '$(ProjLibsOptions)'
+
+###
+# Debugging
+
+# General debugging rule, use 'make print-XXX' to print the
+# definition, value and origin of XXX.
+print-%: 
+	$(error PRINT: $(value $*) = "$($*)" (from $(origin $*)))