DOCS_TARGET_REQUIRE_PROGRAM(PNGTOPNM, pngtopnm, PS)
DOCS_TARGET_REQUIRE_PROGRAM(PNMTOPS, pnmtops, PS)
-DOCS_TARGET_REQUIRE_PROGRAM(DBLATEX, dblatex, DBLATEX)
+DOCS_TARGET_REQUIRE_PROGRAM(DBLATEX, dblatex, LATEX)
DOCS_TARGET_REQUIRE_PROGRAM(PLUCKERBUILD, plucker-build, PLUCKER)
DOCS_TARGET_REQUIRE_PROGRAM(HTML2TEXT, html2text, TXT)
DOCS_TARGET_REQUIRE_PROGRAM(PERL, perl, UNDOCUMENTED)