From 45d85986f01b2d1c77a3cc8fa47872667aa2fc1d Mon Sep 17 00:00:00 2001
From: Ward Fisher <wfisher@ucar.edu>
Date: Mon, 6 Feb 2023 17:13:11 -0700
Subject: [PATCH] Incorporate fix in support of
 https://github.com/Unidata/netcdf-c/pull/2437#issuecomment-1419381660

---
 libsrc/posixio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libsrc/posixio.c b/libsrc/posixio.c
index 31dbf771b1..f1a1cd75b0 100644
--- a/libsrc/posixio.c
+++ b/libsrc/posixio.c
@@ -1768,7 +1768,7 @@ posixio_open(const char *path,
 #endif
 	if(fd < 0)
 	{
-		status = errno;
+		status = errno ? errno : ENOENT;
 		goto unwind_new;
 	}
 	*((int *)&nciop->fd) = fd; /* cast away const */