fix xft build bustage

gfx/src/ps/nsFontMetricsPS.cpp

@@ -935,7 +935,11 @@ nsFontPSXft::FindFont(PRUnichar aChar, const nsFont& aFont,
     // set.
     if (fpi.mGenericFont && !aFont.systemFont) {
       NS_AddGenericFontFromPref(fpi.mGenericFont, langGroup, pattern,
+#ifdef PR_LOGGING
                                 gFontMetricsPSM); 
+#else 
+                                nsnull);
+#endif
     }
 
     // Add the generic if there is one.

gfx/src/shared/nsFontConfigUtils.cpp

@@ -221,7 +221,7 @@ AddFFREandLog(FcPattern *aPattern, nsCString aFamily,
     if (NS_FFRECountHyphens(aFamily) >= 3)
         return;
 
-    if (PR_LOG_TEST(aLogModule, PR_LOG_DEBUG)) {
+    if (aLogModule && PR_LOG_TEST(aLogModule, PR_LOG_DEBUG)) {
         printf("\tadding generic font from preferences: %s\n",
                aFamily.get());
     }