--- a/lib/iec_types.h	Wed Mar 30 19:53:32 2011 +0100
+++ b/lib/iec_types.h	Thu Mar 31 10:45:34 2011 +0100
@@ -31,7 +31,7 @@
 typedef double   IEC_LREAL;
 
 
-#if !defined __timespec_defined
+#if !defined __timespec_defined && !defined __time_t_defined
 # define __timespec_defined     1
 
 struct timespec