#include <stdlib.h>
#ifdef hpux
#include <time.h>
-#elif defined(USL) || defined(__osf__) || defined(linux)
+#elif defined(__osf__) || defined(linux)
#include <sys/time.h>
#else
#include <sys/select.h>
#include <strings.h> /* need to get bzero defined */
#endif /* _AIX */
-#if defined(aix) || defined(USL)
+#if defined(aix)
extern "C"
{
extern int strcasecmp(const char *, const char *);