From 5b53cea47b41ac52314ed8b4f3da79b0934aeb73 Mon Sep 17 00:00:00 2001
From: Ron Yorston <rmy@pobox.com>
Date: Mon, 22 Feb 2016 10:30:30 +0000
Subject: mingw: silently ignore O_NONBLOCK on file open

---
 win32/mingw.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/win32/mingw.c b/win32/mingw.c
index 86867a437..01e7f072a 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -150,8 +150,7 @@ int mingw_open (const char *filename, int oflags, ...)
 	va_end(args);
 
 	if (oflags & O_NONBLOCK) {
-		errno = ENOSYS;
-		return -1;
+		oflags &= ~O_NONBLOCK;
 	}
 	if (filename && !strcmp(filename, "/dev/null"))
 		filename = "nul";
-- 
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