  
  QMAKE_CXXFLAGS += $$QMAKE_CFLAGS_XCB
  QMAKE_CFLAGS += $$QMAKE_CFLAGS_XCB
---- old/qtbase/src/plugins/platforms/xcb/xcb-plugin.pro	2015-07-24 16:02:59.530038830 -0400
-+++ new/qtbase/src/plugins/platforms/xcb/xcb-plugin.pro	2015-07-24 16:01:22.106037459 -0400
+--- old/qtbase/src/plugins/platforms/xcb/xcb-plugin.pro
++++ new/qtbase/src/plugins/platforms/xcb/xcb-plugin.pro
 @@ -6,6 +6,13 @@
      qxcbmain.cpp
  OTHER_FILES += xcb.json README

--- old/qtbase/src/plugins/platforms/xcb/xcb_qpa_lib.pro 2015-03-17 02:06:42.705930685 +0000
+++ new/qtbase/src/plugins/platforms/xcb/xcb_qpa_lib.pro 2015-03-17 02:08:41.281926351 +0000
@@ -74,8 +74,6 @@
 
 DEFINES += $$QMAKE_DEFINES_XCB
 LIBS += $$QMAKE_LIBS_XCB

 
 CONFIG += qpa/genericunixfontdatabase
 
@@ -89,7 +87,8 @@
 contains(QT_CONFIG, xcb-qt) {
     DEFINES += XCB_USE_RENDER
     XCB_DIR = ../../../3rdparty/xcb
-    INCLUDEPATH += $$XCB_DIR/include $$XCB_DIR/sysinclude
+    QMAKE_CFLAGS += -I$$XCB_DIR/include -I$$XCB_DIR/sysinclude $$QMAKE_CFLAGS_XCB
+    QMAKE_CXXFLAGS += -I$$XCB_DIR/include -I$$XCB_DIR/sysinclude $$QMAKE_CFLAGS_XCB
     LIBS += -lxcb -L$$MODULE_BASE_OUTDIR/lib -lxcb-static$$qtPlatformTargetSuffix()
 } else {
     LIBS += -lxcb -lxcb-image -lxcb-icccm -lxcb-sync -lxcb-xfixes -lxcb-shm -lxcb-randr -lxcb-shape -lxcb-keysyms -lxcb-xinerama
--- old/qtbase/src/plugins/platforms/xcb/xcb-static/xcb-static.pro
+++ new/qtbase/src/plugins/platforms/xcb/xcb-static/xcb-static.pro
@@ -9,7 +9,8 @@
 
 XCB_DIR = ../../../../3rdparty/xcb
