--- old/src/share/instrument/JPLISAssert.h	2012-09-06 09:38:02.000000000 -0700
+++ new/src/share/instrument/JPLISAssert.h	2012-09-06 09:38:02.000000000 -0700
@@ -49,10 +49,14 @@
 #define JPLISASSERT_ENABLEASSERTIONS    (0)
 #endif
 
+/* Use THIS_FILE when it is available. */
+#ifndef THIS_FILE
+    #define THIS_FILE __FILE__
+#endif
 
 #if JPLISASSERT_ENABLEASSERTIONS
-#define jplis_assert(x)             JPLISAssertCondition((jboolean)(x), #x, __FILE__, __LINE__)
-#define jplis_assert_msg(x, msg)    JPLISAssertConditionWithMessage((jboolean)(x), #x, msg, __FILE__, __LINE__)
+#define jplis_assert(x)             JPLISAssertCondition((jboolean)(x), #x, THIS_FILE, __LINE__)
+#define jplis_assert_msg(x, msg)    JPLISAssertConditionWithMessage((jboolean)(x), #x, msg, THIS_FILE, __LINE__)
 #else
 #define jplis_assert(x)
 #define jplis_assert_msg(x, msg)