Index: ext/libicpf/src/dmutex.cpp
===================================================================
diff -u -N -rd4269744a04d36c8a8146a84bc27118031fa42ac -r9960df129907ea11b4936b4c2e414d0577cd5f27
--- ext/libicpf/src/dmutex.cpp	(.../dmutex.cpp)	(revision d4269744a04d36c8a8146a84bc27118031fa42ac)
+++ ext/libicpf/src/dmutex.cpp	(.../dmutex.cpp)	(revision 9960df129907ea11b4936b4c2e414d0577cd5f27)
@@ -2,6 +2,8 @@
 #include <assert.h>
 #include <stdio.h>
 
+#ifdef ENABLE_MUTEX_DEBUGGING
+
 BEGIN_ICPF_NAMESPACE
 
 ///////////////////////////////////////////////////////////////
@@ -92,3 +94,5 @@
 }
 
 END_ICPF_NAMESPACE
+
+#endif
Index: ext/libicpf/src/dmutex.h
===================================================================
diff -u -N -rd4269744a04d36c8a8146a84bc27118031fa42ac -r9960df129907ea11b4936b4c2e414d0577cd5f27
--- ext/libicpf/src/dmutex.h	(.../dmutex.h)	(revision d4269744a04d36c8a8146a84bc27118031fa42ac)
+++ ext/libicpf/src/dmutex.h	(.../dmutex.h)	(revision 9960df129907ea11b4936b4c2e414d0577cd5f27)
@@ -29,6 +29,8 @@
 #include "dumpctx.h"
 #include "mutex.h"
 
+#ifdef ENABLE_MUTEX_DEBUGGING
+
 BEGIN_ICPF_NAMESPACE
 
 /** \brief Class provides the locking and unlocking capabilities for use with threads.
@@ -68,3 +70,5 @@
 END_ICPF_NAMESPACE
 
 #endif
+
+#endif