* fcntl.cc (fcntl_worker): Protect with a 'myfault'.

* path.cc (normalize_posix_path): Treat X:/ as Win32 path, too.

	* smallprint.cc (__wrn): New static function.
	(__small_vswprintf): New function to generate WCHAR strings.
	(__small_swprintf): Ditto.
	* winsup.h (__small_swprintf): Declare.
	(__small_vswprintf): Declare.

winsup/cygwin/fcntl.cc

@@ -18,12 +18,17 @@ details. */
 #include "dtable.h"
 #include "cygheap.h"
 #include "thread.h"
+#include "cygtls.h"
 
 int
 fcntl_worker (int fd, int cmd, void *arg)
 {
   int res;
 
+  myfault efault;
+  if (efault.faulted (EFAULT))
+    return -1;
+
   cygheap_fdget cfd (fd, true);
   if (cfd < 0)
     {