cmake HAVE_ISWCTYPE examples

arkdb/inception cmake/readline.cmake :51 

CHECK_FUNCTION_EXISTS(iswctype HAVE_ISWCTYPE)

alibaba/AliSQL cmake/readline.cmake :53 

CHECK_FUNCTION_EXISTS(iswctype HAVE_ISWCTYPE)

Tokutek/mysql-5.5 cmake/readline.cmake :51 

CHECK_FUNCTION_EXISTS(iswctype HAVE_ISWCTYPE)