--- export/src/vis.c	2007-08-31 00:02:46.000000000 +0200
+++ ../src/vis.c	2007-08-31 00:03:08.000000000 +0200
@@ -58,12 +58,30 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
+/* AIX requires this to be the first thing in the file.  */
+#if defined (_AIX) && !defined (__GNUC__)
+ #pragma alloca
+#endif
+
+#include <config.h>
+
+#ifdef __GNUC__
+# undef alloca
+# define alloca(n) __builtin_alloca (n)
+#else
+# ifdef HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifndef _AIX
+extern char *alloca ();
+#  endif
+# endif
+#endif
+
 #if defined(LIBC_SCCS) && !defined(lint)
 __RCSID("$NetBSD: vis.c,v 1.35 2006/08/28 20:42:12 christos Exp $");
 #endif /* LIBC_SCCS and not lint */
 
-#include "namespace.h"
 #include <sys/types.h>
 
 #include <assert.h>