cmake HAVE_WCRTOMB examples

arkdb/inception cmake/readline.cmake :41 

CHECK_FUNCTION_EXISTS(wcrtomb HAVE_WCRTOMB)

alibaba/AliSQL cmake/readline.cmake :43 

CHECK_FUNCTION_EXISTS(wcrtomb HAVE_WCRTOMB)

Tokutek/mysql-5.5 cmake/readline.cmake :41 

CHECK_FUNCTION_EXISTS(wcrtomb HAVE_WCRTOMB)