Index: trunk/psLib/configure.ac
===================================================================
--- trunk/psLib/configure.ac	(revision 10950)
+++ trunk/psLib/configure.ac	(revision 10998)
@@ -81,4 +81,13 @@
    [tests=false])
 AM_CONDITIONAL(BUILD_TESTS, test x$tests = xtrue)
+
+dnl turn on mem leak backtracing 
+AC_ARG_ENABLE(backtrace,
+  [AS_HELP_STRING(--enable-backtrace, enable memory allocation backtracing)],
+  [AC_MSG_RESULT(memory allocation backtracing enabled)
+    AC_DEFINE([PS_MEM_BACKTRACE], 1, [Define to 1 if you want memory backtracing])
+  ]
+)
+AC_CHECK_FUNCS_ONCE([backtrace])
 
 AC_LANG(C)