[libmlocale] Fix configure for Qt 5 builds.

configure

@@ -554,13 +554,18 @@ fi
 QT_MAJOR_VERSION_NEEDED=4
 QT_MINOR_VERSION_NEEDED=7
 
-QT_VERSION=`$QMAKE_BIN -version | tail -1`
+QT_VERSION=$($QMAKE_BIN -query QT_VERSION)
+
+if [ $? -ne 0 ]; then
+    # qtchooser + qt5?
+    QMAKE_BIN="qmake -qt=5"
+    QT_VERSION=$($QMAKE_BIN -query QT_VERSION)
+fi
 
 QT_MAJOR_VERSION=0
 QT_MINOR_VERSION=0
 QT_PATCH_VERSION=0
 if [ -n "$QT_VERSION" ]; then
-   QT_VERSION=`echo $QT_VERSION | sed 's,^ *Using *Qt *version *\([^ ]*\) *in .*$,\1,'`
    MAJOR=`echo $QT_VERSION | sed 's,^\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*,\1,'`
    if [ -n "$MAJOR" ]; then
      MINOR=`echo $QT_VERSION | sed 's,^\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*,\2,'`