openat: Work around compilation error with OSF/1 5.1 DTK cc. * lib/fopen.c: Use different syntax for include of <stdio.h>. * lib/freopen.c: Likewise. * lib/fstatat.c: Use different syntax for include of <sys/stat.h>. * lib/lstat.c: Likewise. * lib/stat.c: Likewise. * lib/open.c: Use different syntax for include of <fcntl.h>. * lib/openat.c: Include fcntl.h again, explicitly.

--- a/lib/open.c
+++ b/lib/open.c
@@ -34,7 +34,9 @@
 }
 
 /* Specification.  */
-#include <fcntl.h>
+/* Write "fcntl.h" here, not <fcntl.h>, otherwise OSF/1 5.1 DTK cc eliminates
+   this include because of the preliminary #include <fcntl.h> above.  */
+#include "fcntl.h"
 
 #include <errno.h>
 #include <stdarg.h>