Qt include path for Mac-OSX added

configure.in

@@ -45,7 +45,8 @@ AC_CHECK_HEADER(QtCore/QString, [found="yes"], [found="no"])
 if test "$found" == "no"; then
   AC_MSG_CHECKING([looking for qt headers])
   for file in /usr/include/qt4 /usr/local/include/qt4 /opt/include/qt4 \
-              /opt/local/include/qt4 /usr/include /usr/local/include \
+              /opt/local/include/qt4 /opt/local/libexec/qt4-mac/include \
+              /usr/include /usr/local/include \
               /opt/include /opt/local/include; do
     if test -d ${file}/QtCore; then
       CPPFLAGS+=" -I$file"