Fix TQGl detection

amarok/configure.in.in

@@ -399,15 +399,15 @@ if test "$build_opengl" != "no"; then
     save_LIBS="$LIBS"
     save_LDFLAGS="$LDFLAGS"
 
-    CXXFLAGS="$CXXFLAGS -I$qt_incdir $all_includes"
+    CXXFLAGS="$CXXFLAGS -I$qt_incdir -I/usr/include/tqt $all_includes"
     LDFLAGS="$LDFLAGS -L$qt_libdir $all_libraries $USER_LDFLAGS $KDE_MT_LDFLAGS"
     LIBS="$LIBS $LIBQT $KDE_MT_LIBS"
 
     AC_TRY_LINK([
-    #include <qgl.h>
+    #include <tqgl.h>
     ],
     [
-    (void)new QGLWidget((QWidget*)0, "qgl");
+    (void)new TQGLWidget((TQWidget*)0, "qgl");
     ],
     ac_cv_kde_qt_has_opengl=yes,
     ac_cv_kde_qt_has_opengl=no)