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devsk
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PostPosted: Sat Oct 23, 2021 8:44 pm    Post subject: minecraft-launcher wants curl with -threads Reply with quote

Does anybody have any ideas around this? I don't want to disable threads support in 'curl' but it looks like minecraft depends on curl[adns] and 'adns' can not be enabled on curl if 'threads' is enabled.

Code:

# time emerge -pv games-action/minecraft-launcher

These are the packages that would be merged, in order:

Calculating dependencies  .... done!

The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by games-action/minecraft-launcher-1035::gentoo
# required by games-action/minecraft-launcher (argument)
>=net-misc/curl-7.79.1 adns

!!! The ebuild selected to satisfy "net-misc/curl[adns]" has unmet requirements.
- net-misc/curl-7.79.1::gentoo USE="ftp http2 imap ipv6 kerberos openssl pop3 progress-meter samba smtp ssl static-libs tftp threads zstd -adns -alt-svc -brotli -gnutls -gopher -hsts -idn -ldap -mbedtls (-nghttp3) -nss -quiche -rtmp -ssh -sslv3 -telnet -test (-winssl)" ABI_X86="(64) -32 (-x32)" CURL_SSL="openssl -gnutls -mbedtls -nss (-winssl)"

  The following REQUIRED_USE flag constraints are unsatisfied:
    threads? ( !adns )

  The above constraints are a subset of the following complete expression:
    winssl? ( elibc_Winnt ) threads? ( !adns ) ssl? ( exactly-one-of ( curl_ssl_gnutls curl_ssl_mbedtls curl_ssl_nss curl_ssl_openssl curl_ssl_winssl ) )

(dependency required by "games-action/minecraft-launcher-1035::gentoo" [ebuild])
(dependency required by "games-action/minecraft-launcher" [argument])

If I enabled adns for curl:

Code:

# time emerge -pv games-action/minecraft-launcher

These are the packages that would be merged, in order:

Calculating dependencies  ... done!

!!! The ebuild selected to satisfy "net-misc/curl[adns]" has unmet requirements.
- net-misc/curl-7.79.1::gentoo USE="adns ftp http2 imap ipv6 kerberos openssl pop3 progress-meter samba smtp ssl static-libs tftp threads zstd -alt-svc -brotli -gnutls -gopher -hsts -idn -ldap -mbedtls (-nghttp3) -nss -quiche -rtmp -ssh -sslv3 -telnet -test (-winssl)" ABI_X86="(64) -32 (-x32)" CURL_SSL="openssl -gnutls -mbedtls -nss (-winssl)"

  The following REQUIRED_USE flag constraints are unsatisfied:
    threads? ( !adns )

  The above constraints are a subset of the following complete expression:
    winssl? ( elibc_Winnt ) threads? ( !adns ) ssl? ( exactly-one-of ( curl_ssl_gnutls curl_ssl_mbedtls curl_ssl_nss curl_ssl_openssl curl_ssl_winssl ) )

(dependency required by "games-action/minecraft-launcher-1035::gentoo" [ebuild])
(dependency required by "games-action/minecraft-launcher" [argument])


Is there a path to keeping threads enabled for curl and still install minecraft? The wiki seems to suggest that curl's threads support is needed for minecraft.
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alamahant
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PostPosted: Sat Oct 23, 2021 9:22 pm    Post subject: Reply with quote

Maybe
https://flathub.org/apps/details/com.mojang.Minecraft
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Ionen
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PostPosted: Sat Oct 23, 2021 10:37 pm    Post subject: Reply with quote

USE=threads isn't always the best/good choice, sometime it can even enable a worse implementation. Ebuilds will typically enable it by default if it should be used, and shouldn't set USE=threads globally.

curl use the flag for it's builtin threaded resolver and has 3 resolver implementation that I know of
1. default signal based implementation (USE="-threads -adns")
2. its builtin threaded implementation (USE="threads -adns")
3. what is probably the better choice, but with an extra dependency on c-ares (USE="adns -threads"), aka library for asynchronous resolution
There's a bug about enabling #3 by default but hasn't seen attention yet ( https://bugs.gentoo.org/699632 )

adns and threads can't be enabled at same time simply because they are used for the same thing, it's one or the other
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devsk
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PostPosted: Sat Oct 23, 2021 11:04 pm    Post subject: Reply with quote

Ionen wrote:
USE=threads isn't always the best/good choice, sometime it can even enable a worse implementation. Ebuilds will typically enable it by default if it should be used, and shouldn't set USE=threads globally.

curl use the flag for it's builtin threaded resolver and has 3 resolver implementation that I know of
1. default signal based implementation (USE="-threads -adns")
2. its builtin threaded implementation (USE="threads -adns")
3. what is probably the better choice, but with an extra dependency on c-ares (USE="adns -threads"), aka library for asynchronous resolution
There's a bug about enabling #3 by default but hasn't seen attention yet ( https://bugs.gentoo.org/699632 )

adns and threads can't be enabled at same time simply because they are used for the same thing, it's one or the other
Thank you for your answer! That helps!

This makes sense now. I didn't know what threads were being used for. Since it is for DNS resolution only, then its perfectly fine to go -threads.
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netfab
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PostPosted: Sun Oct 24, 2021 8:28 am    Post subject: Reply with quote

See also Bug 809098 - games-action/minecraft-launcher: missing runtime dependency net-misc/curl[adns] .
Without adns, minecraft-launcher can crash with this error :
Code:

*** longjmp causes uninitialized stack frame ***: terminated
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