qtbase: add patch to eval QMAKE_CXX

* fixes errors in log.do_configure trying to call wrong CXX

recipes-qt/qt5/qtbase.inc

@@ -4,6 +4,7 @@ SRC_URI += " \
   file://0001-qlibraryinfo-allow-to-set-qt.conf-from-the-outside-u.patch \
   file://0002-qmake-is-already-built-in-qt5-tools-native.patch \
   file://0003-Allow-building-a-separate-qmake-for-the-target.patch \
+  file://0004-configure-eval-QMAKE_CXX.patch \
   file://qmake.conf.sh \
   file://qplatformdefs.h \
 "

recipes-qt/qt5/qtbase/0004-configure-eval-QMAKE_CXX.patch

@@ -0,0 +1,35 @@
+From bc6f13a50ad1c69e728062375d979796977d2b73 Mon Sep 17 00:00:00 2001
+From: Paul Eggleton <paul.eggleton@linux.intel.com>
+Date: Wed, 26 Sep 2012 20:47:08 +0200
+Subject: [PATCH] configure: eval QMAKE_CXX
+
+Allow expansion of $(...) references in QMAKE_CXX (currently its value
+is $(OE_QMAKE_CXX)) in order to allow compiler version check to succeed
+which allows WebKit to be enabled.
+
+Upstream-Status: Pending
+
+Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
+Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
+---
+ configure | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/configure b/configure
+index e23ea22..d83cf74 100755
+--- a/configure
++++ b/configure
+@@ -2623,7 +2623,9 @@ else
+     CFG_FRAMEWORK=no
+ fi
+ 
+-QMAKE_CONF_COMPILER=`getXQMakeConf QMAKE_CXX`
++QMAKE_CONF_COMPILER=`getXQMakeConf QMAKE_CXX | sed -n 's/$[(]\([0-9a-zA-Z_]*\)[)]/$\1/pg'`
++QMAKE_CONF_COMPILER=`eval "echo $QMAKE_CONF_COMPILER"`
++
+ 
+ TEST_COMPILER=$QMAKE_CONF_COMPILER
+ if [ "$XPLATFORM_SYMBIAN_SBSV2" = "no" ]; then
+-- 
+1.8.1.5
+