-PKG_CHECK_MODULES(GTKMATHVIEW,gtkmathview,,AC_MSG_ERROR(can not find gtkmathview))
+GTKMATHVIEW_CONFIG="gtkmathview-config"
+GTKMATHVIEW_MIN_VERSION=0.4.0
+AC_MSG_CHECKING([for gtkmathview library] >= $GTKMATHVIEW_MIN_VERSION)
+if test "x$GTKMATHVIEW_PREFIX" != "x"
+then
+ if ${GTKMATHVIEW_PREFIX}/bin/$GTKMATHVIEW_CONFIG --version > /dev/null 2>&1
+ then
+ GTKMATHVIEW_CONFIG=${GTKMATHVIEW_PREFIX}/bin/$GTKMATHVIEW_CONFIG
+ elif ! $GTKMATHVIEW_CONFIG --version > /dev/null 2>&1
+ then
+ AC_MSG_ERROR([Could not find gtkmathview anywhere (see config.log for details).])
+ fi
+fi
+
+dnl
+dnl test version and init our variables
+dnl
+vers=`$GTKMATHVIEW_CONFIG --version | awk -F. '{ printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
+minvers=`echo $GTKMATHVIEW_MIN_VERSION | awk -F. '{ printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
+if test "$vers" -ge "$minvers"
+then
+ GTKMATHVIEW_LIBS="`$GTKMATHVIEW_CONFIG --libs`"
+ GTKMATHVIEW_CFLAGS="`$GTKMATHVIEW_CONFIG --cflags`"
+ AC_MSG_RESULT(found)
+else
+ AC_MSG_ERROR([You need at least gtkmathview $GTKMATHVIEW_MIN_VERSION for this version of $PACKAGE])
+fi
+