nxcomp: Fix setting of global tcpFD

This corrects a flaw that stayed undetected for 2.5 years, introduced via c5a2cf82 Fixes ArcticaProject/nx-libs#573

nxcomp: Fix setting of global tcpFD
82e893ef · Ulrich Sibiller · 7f777e01 · 82e893ef
Commit 82e893ef authored Dec 02, 2017 by Ulrich Sibiller
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Loop.cpp nxcomp/src/Loop.cpp +2 -1

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--- a/nxcomp/src/Loop.cpp
+++ b/nxcomp/src/Loop.cpp
@@ -3741,7 +3741,8 @@ int SetupTcpSocket()
  // Open TCP socket emulating local display.
  //

-  return ListenConnectionTCP((loopbackBind ? "localhost" : "*"), X_TCP_PORT + proxyPort, "X11");
+  tcpFD =  ListenConnectionTCP((loopbackBind ? "localhost" : "*"), X_TCP_PORT + proxyPort, "X11");
+  return 1;
 }

 int SetupUnixSocket()