cmake HAVE_LTDL_H examples

mongodb/mongo-bi-connector-odbc-driver cmake/FindLtdl.cmake :40 

CHECK_INCLUDE_FILES(ltdl.h HAVE_LTDL_H)

mongodb/mongo-bi-connector-odbc-driver cmake/FindLtdl.cmake :44 

ENDIF(NOT HAVE_LTDL_H)