[qt5] Patch for src/network/socket/qlocalsocket_unix.cpp

[Tatsuro MATSUOKA]

I have been trying to build qt terminal for gnuplot on cygwin and
not getting successful results.
connection of two processes (gnuplot.exe and gnuplot_qt.exe) were in failure.
Patch by Enrico Forestieri solves the problem
(avoid using O_NONBLOCK)
--- a/qtbase-everywhere-src-5.10.1/src/network/socket/qlocalsocket_unix.cpp
+++ b/qtbase-everywhere-src-5.10.1/src/network/socket/qlocalsocket_unix.cpp
@@ -239,7 +239,7 @@ void QLocalSocket::connectToServer(OpenM
    }
    // create the socket
-    if (-1 == (d->connectingSocket = qt_safe_socket(PF_UNIX, SOCK_STREAM, 0, O_NONBLOCK))) {
+    if (-1 == (d->connectingSocket = qt_safe_socket(PF_UNIX, SOCK_STREAM, 0))) {
        d->errorOccurred(UnsupportedSocketOperationError,
                        QLatin1String("QLocalSocket::connectToServer"));
        return;

Can this patch appply to current Qt5 for cygwin?
Tatsuro


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