On Fri, May 21, 2010 at 02:04:38PM -0700, Torsten Rohlfing wrote: > FIND_PACKAGE(ZLIB) > IF(ZLIB_FOUND) > MESSAGE( WARNING "HAVE system zlib" ) > ELSEIF(ZLIB_FOUND) > MESSAGE( WARNING "NO system zlib" ) > ENDIF(ZLIB_FOUND) I don't see an else clause here, just two ifs (that check the same condition). tyler