--- a/CMakeLists.txt	Thu Jul 28 02:48:21 2011 +0300
+++ b/CMakeLists.txt	Fri Aug 19 01:42:20 2011 +0300
@@ -41,7 +41,7 @@
 set(CMAKE_REQUIRED_FLAGS ${LM_LDFLAGS} ${LM_CFLAGS})
 check_function_exists(lm_connection_get_keep_alive_rate HAVE_LM_CONNECTION_GET_KEEP_ALIVE_RATE)
 check_function_exists(lm_connection_unregister_reply_handler HAVE_LM_CONNECTION_UNREGISTER_REPLY_HANDLER)
-find_package(Perl)
+find_program(DOCGEN_EXECUTABLE NAMES docgen.pl docgen DOC "Docgen documentation generator script (optional)")
 # (this should be before targets definitions)
 link_directories(${LUA_LIBRARY_DIRS} ${GLIB_LIBRARY_DIRS} ${LM_LIBRARY_DIRS})
 
@@ -62,8 +62,8 @@
                       COMPILE_FLAGS "-Wall ${DEBUG_COMPILE_FLAGS}")
 
 ## Extra targets
-if(PERL_FOUND)
-	add_custom_command(OUTPUT ${lua-lm_BINARY_DIR}/loudmouth.html COMMAND ${PERL_EXECUTABLE} ${lua-lm_SOURCE_DIR}/docgen.pl -f html -t "Lua-loudmouth API reference" -o ${lua-lm_BINARY_DIR}/loudmouth.html -- ${loudmouth_SOURCES} DEPENDS ${lua-lm_SOURCE_DIR}/docgen.pl ${loudmouth_SOURCES} WORKING_DIRECTORY ${lua-lm_SOURCE_DIR})
+if(DOCGEN_EXECUTABLE)
+	add_custom_command(OUTPUT ${lua-lm_BINARY_DIR}/loudmouth.html COMMAND ${DOCGEN_EXECUTABLE} -f html -t "Lua-loudmouth API reference" -o ${lua-lm_BINARY_DIR}/loudmouth.html -- ${loudmouth_SOURCES} DEPENDS ${DOCGEN_EXECUTABLE} ${loudmouth_SOURCES} WORKING_DIRECTORY ${lua-lm_SOURCE_DIR})
 	add_custom_target(doc ALL DEPENDS ${lua-lm_BINARY_DIR}/loudmouth.html)
 endif()
 if(LUA_EXECUTABLE)
@@ -101,7 +101,7 @@
 install(TARGETS loudmouth DESTINATION lib/lua/5.1)
 install(FILES lm.lua DESTINATION share/lua/5.1)
 install(FILES test.lua DESTINATION share/doc/${CPACK_PACKAGE_NAME}/examples)
-if(PERL_FOUND)
+if(DOCGEN_EXECUTABLE)
 	install(FILES ${lua-lm_BINARY_DIR}/loudmouth.html DESTINATION share/doc/${CPACK_PACKAGE_NAME})
 endif()
 install(FILES README TODO COPYING DESTINATION share/doc/${CPACK_PACKAGE_NAME})