diff --git a/testpar/t_posix_compliant.c b/testpar/t_posix_compliant.c
index 17d7572699..b863788d8a 100644
--- a/testpar/t_posix_compliant.c
+++ b/testpar/t_posix_compliant.c
@@ -32,21 +32,23 @@
  * larber@ncsa.uiuc.edu
 */
 
-#include <mpi.h>
-#include <stdio.h>
-#include <stdlib.h>
 #include <unistd.h>
+#include <stdio.h>
 #include <string.h>
-#ifdef _POSIX_SOURCE
-#include <getopt.h>
-#endif
+#include <stdlib.h>
+#include <mpi.h>
 #include "h5test.h"
 
-
 static char*		testfile = NULL;
 static int		err_flag = 0;
 static int		max_err_print = 5;
 
+/* globals needed for getopt
+ * Although they *should* be defined in unistd.h */
+extern char *optarg;
+extern int optind, opterr;
+
+
 #define CHECK_SUCCESS(res)	\
 {				\
     char        err_got[MPI_MAX_ERROR_STRING];	\