diff -r 000000000000 -r 033898178630 config.h.in
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/config.h.in	Sat Aug 04 21:19:15 2018 +0200
@@ -0,0 +1,11 @@
+/* config.h.in.  */
+
+#undef COPYRIGHT
+#undef VERSION
+
+/* Compile experimental code (may not be present) */
+#undef USE_EXPERIMENT
+
+/* According to Sun we MUST define this in the source */
+#define _REENTRANT 1
+