File dt-default-source-define.patch of Package dt

Index: common.h
===================================================================
--- common.h.orig
+++ common.h
@@ -127,7 +127,7 @@ typedef volatile slarge_t	v_slarge;
 
 #endif /* defined(_WIN64) */
 
-#elif defined(__GNUC__) && defined(_BSD_SOURCE) || defined(SCO) || defined(__QNXNTO__) || defined(SOLARIS) || defined(HP_UX) || defined(AIX) || defined(_NT_SOURCE) 
+#elif defined(__GNUC__) && defined(_BSD_SOURCE) || defined (_DEFAULT_SOURCE) ||  defined(SCO) || defined(__QNXNTO__) || defined(SOLARIS) || defined(HP_UX) || defined(AIX) || defined(_NT_SOURCE) 
 
 #define QuadIsLongLong
 typedef unsigned long long int	large_t;