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-rw-r--r--winsup/cygwin/pipe.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/winsup/cygwin/pipe.cc b/winsup/cygwin/pipe.cc
index 05b6c6f1d..f131fd43f 100644
--- a/winsup/cygwin/pipe.cc
+++ b/winsup/cygwin/pipe.cc
@@ -86,6 +86,7 @@ fhandler_pipe::read (void *in_ptr, size_t& in_len)
int fhandler_pipe::close ()
{
int res = fhandler_base::close ();
+#undef guard
if (guard)
CloseHandle (guard);
if (writepipe_exists)