+if test -z "${BOOST_REGEX_LIB}"; then
+ AC_MSG_ERROR([Boost regex development libraries required])
+fi
+
+xml_avail=false
+xslt_avail=false
+YAZ_LIBXML2([xml_avail=true])
+if $xml_avail; then
+ YAZ_LIBXSLT([xslt_avail=true])
+else
+ AC_MSG_ERROR([Libxml2 development files not found])
+fi
+if $xslt_avail; then
+ :
+else
+ AC_MSG_ERROR([Libxslt development files not found])
+fi