Index: garglk/cheapglk/cgdate.c
--- garglk/cheapglk/cgdate.c.orig
+++ garglk/cheapglk/cgdate.c
@@ -44,7 +44,7 @@
 /* timegm() is non-standard (neither C nor POSIX), so unconditionally
    use a replacement.
 */
-#define NO_TIMEGM_AVAIL
+/* #define NO_TIMEGM_AVAIL */
 
 /* bzero() is deprecated */
 #undef bzero
