K 10 svn:author V 6 murray K 8 svn:date V 27 2001-07-10T03:06:48.000000Z K 7 svn:log V 210 Slight modification to support the case where a document contains indexterms, but we don't want to generate the index. Specifically, touch the ${INDEX_SGML} file if ${GEN_INDEX} is not set. Suggested by: Nik END