+#ifdef HAVE_PUTENV
+# ifndef NDEBUG
+ /* Activate malloc checking routines to detect heap corruptions. */
+ putenv( (char*)"MALLOC_CHECK_=2" );
+
+ /* Disable the ugly Gnome crash dialog so that we properly segfault */
+ putenv( (char *)"GNOME_DISABLE_CRASH_DIALOG=1" );
+# endif
+
+ /* Make Xlib hide visuals with an alphachannel. Ensure that Qt4 will not
+ * use the alpha channel for the embedded video window. */
+ putenv( (char *)"XLIB_SKIP_ARGB_VISUALS=1" );
+#endif
+