-HTML.index.m: ${DOC}.sgml ${SRCFILES} ${USEINIT}
- sed "s:##PATHLANG##:${PATH_LANG}:" ${SGMLDIR}/${DOC}.sgml > ${SGMLDIR}/${DOC}.tmp.sgml
+${SGMLDIR}/${DOC}.tmp.sgml: ${SGMLDIR}/${DOC}.sgml
+ sed "s:##PATHLANG##:${PATH_LANG}:" ${SGMLDIR}/${DOC}.sgml > ${SGMLDIR}/${DOC}.tmp.sgml
+
+HTML.index.m: ${DOC}.sgml ${SRCFILES} ${USEINIT} ${SGMLDIR}/${DOC}.tmp.sgml