The vivante headers pull in X11 defines which break eglconvenience

* Adds a missing include to qeglplatformcontext.cpp
* Fix namespace collision on CursorShape, pulled in from X11/X.h
* Do not pass MESA_EGL_NO_X11_HEADERS when xcb is use

[based on patch from Yocto project]
Signed-off-by: Jérôme Pouiller <jezz@sysmic.org>


diff -Nuar a/src/platformsupport/eglconvenience/eglconvenience.pri b/src/platformsupport/eglconvenience/eglconvenience.pri
--- a/src/platformsupport/eglconvenience/eglconvenience.pri	2014-08-07 16:53:50.038277168 -0400
+++ b/src/platformsupport/eglconvenience/eglconvenience.pri	2014-08-07 16:54:52.874278651 -0400
@@ -30,8 +30,10 @@
         }
     }
 
-    # Avoid X11 header collision
-    DEFINES += MESA_EGL_NO_X11_HEADERS
+    !contains(QT_CONFIG,xcb) {
+        # Avoid X11 header collision
+        DEFINES += MESA_EGL_NO_X11_HEADERS
+    }
 
     contains(QT_CONFIG,xlib) {
         HEADERS += \
diff -Nuar a/src/platformsupport/eglconvenience/qeglplatformcontext.cpp b/src/platformsupport/eglconvenience/qeglplatformcontext.cpp
--- a/src/platformsupport/eglconvenience/qeglplatformcontext.cpp	2014-08-07 16:53:50.038277168 -0400
+++ b/src/platformsupport/eglconvenience/qeglplatformcontext.cpp	2014-08-07 16:56:00.630280249 -0400
@@ -39,6 +39,7 @@
 **
 ****************************************************************************/
 
+#include <qtextstream.h>
 #include "qeglplatformcontext_p.h"
 #include "qeglconvenience_p.h"
 #include "qeglpbuffer_p.h"
--- a/src/platformsupport/eglconvenience/qeglplatformcursor_p.h	2014-08-07 16:53:50.038277168 -0400
+++ b/src/platformsupport/eglconvenience/qeglplatformcursor_p.h	2014-08-07 16:58:49.014284222 -0400
@@ -42,6 +42,11 @@
 #ifndef QEGLPLATFORMCURSOR_H
 #define QEGLPLATFORMCURSOR_H
 
+// avoid namespace collision with X11/X.h
+#ifdef CursorShape
+#undef CursorShape
+#endif
+
 #include <qpa/qplatformcursor.h>
 #include <qpa/qplatformscreen.h>
 
--- a/src/platformsupport/eglconvenience/qeglplatformcursor.cpp	2014-08-07 16:53:50.038277168 -0400
+++ b/src/platformsupport/eglconvenience/qeglplatformcursor.cpp	2014-08-07 17:00:36.806286766 -0400
@@ -49,8 +49,8 @@
 
 #include <QtPlatformSupport/private/qdevicediscovery_p.h>
 
-#include "qeglplatformcursor_p.h"
 #include "qeglplatformintegration_p.h"
+#include "qeglplatformcursor_p.h"
 
 QT_BEGIN_NAMESPACE