Package: curl Version: 7.74.0 When I invoke `curl --version', it list feature included on the curl library. Brotli compression library is included, but not Zstd. Both compression library are included is the same way .
See https://daniel.haxx.se/blog/2020/08/19/curl-7-72-0-more-compression/ for zstd added in feature. Here is a transcript on recent build of Debian 11: gvollant@debian11:~/soft_amabis$ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux bullseye/sid Release: testing Codename: bullseye gvollant@debian11:~/soft_amabis$ curl --version curl 7.74.0 (x86_64-pc-linux-gnu) libcurl/7.74.0 OpenSSL/1.1.1j zlib/1.2.11 brotli/1.0.9 libidn2/2.3.0 libpsl/0.21.0 (+libidn2/2.3.0) libssh2/1.9.0 nghttp2/1.43.0 librtmp/2.3 Release-Date: 2020-12-09 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps mqtt pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftp Features: alt-svc AsynchDNS brotli GSS-API HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM NTLM_WB PSL SPNEGO SSL TLS-SRP UnixSockets See transcript on manjaro Linux: [gillesvollant@gillesvollant-manj ~]$ lsb_release -a LSB Version: n/a Distributor ID: ManjaroLinux Description: Manjaro Linux Release: 20.2.1 Codename: Nibia [gillesvollant@gillesvollant-manj ~]$ curl --version curl 7.75.0 (x86_64-pc-linux-gnu) libcurl/7.75.0 OpenSSL/1.1.1i zlib/1.2.11 zstd/1.4.8 libidn2/2.3.0 libpsl/0.21.1 (+libidn2/2.3.0) libssh2/1.9.0 nghttp2/1.41.0 Release-Date: 2021-02-03 Protocols: dict file ftp ftps gopher gophers http https imap imaps mqtt pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp Features: alt-svc AsynchDNS GSS-API HTTP2 HTTPS-proxy IDN IPv6 I suggest adding zstd library support on curl package. I am using Debian GNU/Linux 2.2, kernel 2.2.17-pre-patch-13 and libc6 2.1.3-10.