Index: libdatrie-0.2.9/configure.ac

===================================================================

--- libdatrie-0.2.9.orig/configure.ac

+++ libdatrie-0.2.9/configure.ac

@@ -113,7 +113,8 @@ if test "x$enable_doxygen_doc" = "xyes";

   else

     AC_MSG_CHECKING([doxygen >= $DOXYGEN_REQ_VER])

     DOXYGEN_VER=$($DOXYGEN --version)

-    if expr $DOXYGEN_VER \< $DOXYGEN_REQ_VER > /dev/null; then

+    AS_VERSION_COMPARE($DOXYGEN_VER, $DOXYGEN_REQ_VER, [HAVE_DOXYGEN=0], [HAVE_DOXYGEN=1], [HAVE_DOXYGEN=1])

+    if [test "$HAVE_DOXYGEN" = "0"]; then

       AC_MSG_RESULT([$DOXYGEN_VER, no, documentation disabled])

       enable_doxygen_doc="no"

     else