On 10/28/2015 12:23 PM, Anthony G. Basile wrote: > > A properly designed sub-USE flag would be useful here and clearly better > than our REQUIRED_USE. I think REQUIRED_USE is fine for heterogeneous > cases, but not when you have something like curl where you can either > turn ssl on or off. If it is off, nothing more needs to be specified, > if it is on, then you must further specify one and exactly one ssl > provider. >
Uhm, curl makes use of REQUIRED_USE heavily, otherwise the use_expand would not work: > REQUIRED_USE=" > curl_ssl_winssl? ( elibc_Winnt ) > threads? ( !adns ) > ssl? ( > ^^ ( > curl_ssl_axtls > curl_ssl_gnutls > curl_ssl_libressl > curl_ssl_openssl > curl_ssl_nss > curl_ssl_polarssl > curl_ssl_winssl > ) > )" With the providers syntax from exherbo, this monster would basically be gone.
