Move declatation of struct timespec to its own include files for

systems without it since it needs time_t defined.

check.c

@@ -51,6 +51,9 @@
 #include <time.h>
 #include <pwd.h>
 #include <grp.h>
+#ifndef HAVE_TIMESPEC
+# include <emul/timespec.h>
+#endif
 
 #include "sudo.h"
 

compat.h

@@ -255,13 +255,6 @@ const char *getprogname __P((void));
 #endif /* HAVE___PROGNAME */
 #endif /* !HAVE_GETPROGNAME */
 
-#ifndef HAVE_TIMESPEC
-struct timespec {
-    time_t	tv_sec;
-    long	tv_nsec;
-};
-#endif /* !HAVE_TIMESPEC */
-
 #ifndef timespecclear
 # define timespecclear(ts)	(ts)->tv_sec = (ts)->tv_nsec = 0
 #endif