[gentoo-commits] repo/gentoo:master commit in: dev-util/sccache/

[Sam James]

commit:     bb6123c2abf0ba1c813d848122445a7ef5033916
Author:     idealseal <realidealseal <AT> protonmail <DOT> com>
AuthorDate: Wed Jan  8 20:49:22 2025 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Tue Jan 14 04:51:37 2025 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=bb6123c2

dev-util/sccache: add 0.9.1

Signed-off-by: idealseal <realidealseal <AT> protonmail.com>
Signed-off-by: Sam James <sam <AT> gentoo.org>

 dev-util/sccache/Manifest             |   2 +
 dev-util/sccache/sccache-0.9.1.ebuild | 482 ++++++++++++++++++++++++++++++++++
 2 files changed, 484 insertions(+)

diff --git a/dev-util/sccache/Manifest b/dev-util/sccache/Manifest
index 36fa11e8d864..ed884ec75c26 100644
--- a/dev-util/sccache/Manifest
+++ b/dev-util/sccache/Manifest
@@ -42,6 +42,7 @@ DIST byteorder-1.5.0.crate 23288 BLAKE2B 
7f85a7948406844070a2c8202e0bd52f73b3dfc
 DIST bytes-1.6.0.crate 60605 BLAKE2B 
3e4cd094443969c6062b51917ad9df314b61ec9ddcb0336cf2621d8966c568d5b1fdbf16b11b5e2fab01b43ea76f6609f753eb5c2380a5e4aa8fb6e807a2ff5d
 SHA512 
6507bc4274204d0a19b6a95c3284c52245c71cbf5f2dfb5cd372193d989e49869ec557c0c4e449e96ed4e3028c90606dfb0dcdc1d72bb234a36bc5f344c0a7a8
 DIST cbc-0.1.2.crate 23501 BLAKE2B 
c0d537af0323a92cd01a9ec197bbe46507835348e16dcec7360072226647abe2eaa4823023930da93885347fe1429acc2f9c079b7bcac686c1293ef73b91bf0a
 SHA512 
d3b33deff64d839ad25141f1c3b5fbeaa21f71aee7b58dbed91e7d257f93e68073c8d4a63d4c4eb9775c20f00bb0ceeee714a8218e85a231f30cd7423022f820
 DIST cc-1.0.83.crate 68343 BLAKE2B 
33245b33fa845ea2f36da36e3830ec835f937e4319865b357ee9d5ea29a0f9f8392eadb38bf1d95e3c15ed201e561acaa87aedcef744f8db3dabff87a96c7f02
 SHA512 
742a248c3a7547bb220a0b9c97b67a831fab9b4ac21daa08c85a3966b9fe576088def33e16132fcabec9a2828a6fc437088bb045bfc98b2cea829df6742565a7
+DIST cc-1.1.10.crate 82159 BLAKE2B 
81168fd673e065a3ecc5b3aea8b288c5353bdf5ff82e9dc1c0970225ab7f51dc2be00bc977690934af1df094f89c7e57e35702950849a9a2a07b1876ef950cec
 SHA512 
8c72753166fdb0d9d4b326938c5423d996dac82b5af65c8fb16734bb3ddbbc31a9254a18f1ef5f06a770261ab947d06757acbc60af9486496d3562dab30b3733
 DIST cfg-if-0.1.10.crate 7933 BLAKE2B 
063a96ed176f34f788666b40adc483d147fc011dee941ab60569ddd0e57502b5dd06ed71090f4e14ce005d06e240500a286f74652615e9d068fba649610d8cf8
 SHA512 
9d22616bfb4a75770a828a0a3cddac6787297a5fdc53eb17e25811cc94de717f2de8bd66d53c5d65ba1c83d8892aefee5ae758cf56a1ef0a0c3120f70b244339
 DIST cfg-if-1.0.0.crate 7934 BLAKE2B 
e99a5589c11d79d77a4537b34ce0a45d37b981c123b79b807cea836c89fc3926d693458893baca2882448d3d44e3f64e06141f6d916b748daa10b8cc1ae16d1b
 SHA512 
0fb16a8882fd30e86b62c5143b1cb18ab564e84e75bd1f28fd12f24ffdc4a42e0d2e012a99abb606c12efe3c11061ff5bf8e24ab053e550ae083f7d90f6576ff
 DIST cfg_aliases-0.1.1.crate 6009 BLAKE2B 
6acfae9a89d3479f7ce1f0b5dbb13bfe27c006b936a96685606a61a06f69d17ab754a8a0d96c54213f758281c2fb32ac74d03a34e0f836dc7e438387955aac37
 SHA512 
238828445c5b48ca41ff88825af0a1ad30494e423bb6f89b6d5e4d26042afaa1ceb0e32041f7cddd79c3e15c6c82a1ddb9469c4b63a1ac52d4bcc1174900f880
@@ -260,6 +261,7 @@ DIST same-file-1.0.6.crate 10183 BLAKE2B 
a320c8343e0b38078ba81c4f0159d886bf47764
 DIST scc-2.1.0.crate 122739 BLAKE2B 
12508415de1d856cac46ac042ff8ec738fdf234dc34b54b848cb5964a29d12f6ae705fa47e467ae72b4dac3289ab1168490050aaa25cc9e992a077f4f4c5f4a3
 SHA512 
8ac3754d63e350d43404bcaf1ef79657194e4188fd026f0f504196b5f27552dd380614966bb75d43282d57f0d1bc050d5417abd7774353088eeecc84201d5bdd
 DIST sccache-0.8.2.tar.gz 358026 BLAKE2B 
39ddadd8efab23937443eb39b441fa339f7ade5b908bd67cc05194a352fdfce0ed698becc44c226f935e7a966748aa5980a06a46a4101c7f247d7f55c4f150f4
 SHA512 
4418f650d75fa1cffc4bd6831ef5cf2f4d9d2d3e82ebf64efee69fb4650bf754ba5b73bc1979163ba747edb3515e9f40203e2f355d8feaa57fd6c457f9922b44
 DIST sccache-0.9.0.tar.gz 387733 BLAKE2B 
39d14a3ff06dd69f55be006273b84cb19223f42f85b396019297dae3f20bde9b291716e8de275f4cf09665cc7004af3c4d986a9ad7982a653d175c913e6c241f
 SHA512 
4e806bff4fd7496024743faa06963fd6e64f452ddc702f02ae3eeab65a44c7d37ff4f4600d6f845f080f6cf5a29bde1cb51c6f50b8b9cca4329d1e78b1065327
+DIST sccache-0.9.1.tar.gz 390867 BLAKE2B 
b9fbdc629812a9c9ffea628984c7965585112fde9cf11fb1c8dfa51236b9600041d87032fbd9df3eb7bc8a2a933fec6404b626abf0a84cc0e7eed6c1682ba3c8
 SHA512 
3296aecf0c49c7171f6c65004001bc80fd259f7b85c3e52527c74b24549b677eb3056cf74f574fc645df0cab41b08e0bf8416b478b606d3f90b62f2f709f1969
 DIST schannel-0.1.23.crate 41667 BLAKE2B 
3f34ecf4cc519f5302f0ab5207907a275c68e6fcbb47630aec4ed5d5f1a1cc7475f6d7a8c22361e9878002f9f54314c1f630ab0c1f77ea309714bdb7ada6c9af
 SHA512 
dfce25e3b8bc09d8dd1fce2783fe02ec83f74697cb24aa212ef9369a628685ba488f821cb3e5f863798e0e59995038c8d748f74b89f7929eb8cfd804d5066b84
 DIST scopeguard-1.2.0.crate 11619 BLAKE2B 
8b7e9ed6cefef9ee55407fb9690d57a2a98bb93e5105aeebdb475a52485e9e185255249e1dce8f83cd80534e7402d485aac3efa7e8493b13135de27550cd4bc4
 SHA512 
6247719a15fe1e4e2d179127b9a934bd2f99367724f41175ed9522f58824b6bc69b35002eae66b35880375ff61d77ac43ddaa78cbde7160a35183a1da32d3fbb
 DIST scrypt-0.11.0.crate 13440 BLAKE2B 
c2378aaa8e81c5b18fa5954b7b72fd3c4e02f61e4f8c8472de4822279d3cdbabf26200492c332581e1d6397e6b4a2e62e38bc09e5472871501c1883de7649894
 SHA512 
d7910b277ef814a470361c12a7f2c90ef5b1df56cba9b62662f52a36f076872cf21d18f6c81d33d5a7e94184625753e8a6224d6559ab3cf82ae1a0b7f704e544

diff --git a/dev-util/sccache/sccache-0.9.1.ebuild 
b/dev-util/sccache/sccache-0.9.1.ebuild
new file mode 100644
index 000000000000..ee839eb86813
--- /dev/null
+++ b/dev-util/sccache/sccache-0.9.1.ebuild
@@ -0,0 +1,482 @@
+# Copyright 2017-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# Autogenerated by pycargoebuild 0.7
+
+EAPI=8
+
+CRATES="
+       addr2line@0.21.0
+       adler@1.0.2
+       aes@0.8.4
+       aho-corasick@1.1.2
+       android-tzdata@0.1.1
+       android_system_properties@0.1.5
+       anstream@0.6.11
+       anstyle-parse@0.2.1
+       anstyle-query@1.0.0
+       anstyle-wincon@3.0.2
+       anstyle@1.0.2
+       anyhow@1.0.86
+       ar@0.9.0
+       arc-swap@1.7.1
+       arrayref@0.3.7
+       arrayvec@0.7.4
+       ascii@1.1.0
+       assert_cmd@2.0.13
+       async-trait@0.1.83
+       atomic-waker@1.1.2
+       autocfg@1.1.0
+       backon@1.2.0
+       backtrace@0.3.69
+       base64@0.13.1
+       base64@0.21.7
+       base64@0.22.1
+       base64ct@1.6.0
+       bb8@0.8.1
+       bincode@1.3.3
+       bitflags@1.3.2
+       bitflags@2.4.1
+       blake3@1.5.0
+       block-buffer@0.10.4
+       block-padding@0.3.3
+       bstr@1.9.0
+       buf_redux@0.8.4
+       bumpalo@3.14.0
+       byteorder@1.5.0
+       bytes@1.6.0
+       cbc@0.1.2
+       cc@1.1.10
+       cfg-if@0.1.10
+       cfg-if@1.0.0
+       cfg_aliases@0.1.1
+       chrono@0.4.38
+       chunked_transfer@1.5.0
+       cipher@0.4.4
+       clap@4.4.18
+       clap_builder@4.4.18
+       clap_derive@4.4.7
+       clap_lex@0.6.0
+       colorchoice@1.0.0
+       combine@4.6.6
+       const-oid@0.9.6
+       const-random-macro@0.1.16
+       const-random@0.1.17
+       constant_time_eq@0.3.0
+       core-foundation-sys@0.8.6
+       core-foundation@0.9.4
+       core_affinity@0.8.1
+       cpufeatures@0.2.12
+       crc16@0.4.0
+       crc32c@0.6.8
+       crc32fast@1.3.2
+       crossbeam-utils@0.8.18
+       crunchy@0.2.2
+       crypto-common@0.1.6
+       daemonize@0.5.0
+       der@0.7.8
+       deranged@0.3.11
+       derive_more@0.99.17
+       difflib@0.4.0
+       digest@0.10.7
+       directories@5.0.1
+       dirs-sys@0.4.1
+       displaydoc@0.1.7
+       dlv-list@0.5.2
+       doc-comment@0.3.3
+       either@1.9.0
+       encoding_rs@0.8.34
+       env_logger@0.10.2
+       equivalent@1.0.1
+       errno@0.3.8
+       error-chain@0.12.4
+       fastrand@2.0.1
+       filetime@0.2.23
+       flagset@0.4.4
+       flate2@1.0.28
+       float-cmp@0.9.0
+       flume@0.10.14
+       fnv@1.0.7
+       foreign-types-shared@0.1.1
+       foreign-types@0.3.2
+       form_urlencoded@1.2.1
+       fs-err@2.11.0
+       futures-channel@0.3.30
+       futures-core@0.3.30
+       futures-executor@0.3.30
+       futures-io@0.3.30
+       futures-macro@0.3.30
+       futures-sink@0.3.30
+       futures-task@0.3.30
+       futures-util@0.3.30
+       futures@0.3.30
+       generic-array@0.14.7
+       getrandom@0.2.11
+       gimli@0.28.1
+       gloo-timers@0.3.0
+       gzp@0.11.3
+       h2@0.3.26
+       h2@0.4.5
+       hashbrown@0.14.3
+       heck@0.4.1
+       hermit-abi@0.3.9
+       hex@0.4.3
+       hmac@0.12.1
+       home@0.5.9
+       hostname@0.3.1
+       http-body-util@0.1.1
+       http-body@0.4.6
+       http-body@1.0.0
+       http@0.2.11
+       http@1.1.0
+       httparse@1.8.0
+       httpdate@1.0.3
+       humantime@2.1.0
+       hyper-rustls@0.27.2
+       hyper-tls@0.5.0
+       hyper-tls@0.6.0
+       hyper-util@0.1.3
+       hyper@0.14.28
+       hyper@1.1.0
+       iana-time-zone-haiku@0.1.2
+       iana-time-zone@0.1.59
+       idna@0.5.0
+       indexmap@2.2.5
+       inout@0.1.3
+       ipnet@2.9.0
+       is-terminal@0.4.12
+       itertools@0.12.0
+       itoa@0.3.4
+       itoa@1.0.10
+       jobserver@0.1.32
+       js-sys@0.3.66
+       jsonwebtoken@9.2.0
+       lazy_static@1.4.0
+       libc@0.2.155
+       libm@0.2.8
+       libmount@0.1.15
+       libredox@0.0.1
+       linked-hash-map@0.5.6
+       linux-raw-sys@0.4.12
+       lock_api@0.4.11
+       log@0.4.22
+       match_cfg@0.1.0
+       md-5@0.10.6
+       memchr@2.7.1
+       memmap2@0.9.4
+       mime@0.3.17
+       mime_guess@2.0.4
+       miniz_oxide@0.7.1
+       mio@1.0.2
+       multipart@0.18.0
+       nanorand@0.7.0
+       native-tls@0.2.11
+       nix@0.14.1
+       nix@0.28.0
+       normalize-line-endings@0.3.0
+       num-bigint-dig@0.8.4
+       num-bigint@0.4.6
+       num-conv@0.1.0
+       num-integer@0.1.46
+       num-iter@0.1.43
+       num-traits@0.2.19
+       num_cpus@1.16.0
+       num_threads@0.1.6
+       number_prefix@0.4.0
+       object@0.32.2
+       once_cell@1.19.0
+       opendal@0.50.1
+       openssl-macros@0.1.1
+       openssl-probe@0.1.5
+       openssl-src@300.2.1+3.2.0
+       openssl-sys@0.9.101
+       openssl@0.10.64
+       option-ext@0.2.0
+       ordered-multimap@0.7.0
+       parking_lot@0.12.1
+       parking_lot_core@0.9.9
+       pbkdf2@0.12.2
+       pem-rfc7468@0.7.0
+       pem@3.0.3
+       percent-encoding@2.3.1
+       pin-project-internal@1.1.7
+       pin-project-lite@0.2.13
+       pin-project@1.1.7
+       pin-utils@0.1.0
+       pkcs1@0.7.5
+       pkcs5@0.7.1
+       pkcs8@0.10.2
+       pkg-config@0.3.28
+       powerfmt@0.2.0
+       ppv-lite86@0.2.17
+       predicates-core@1.0.6
+       predicates-tree@1.0.9
+       predicates@3.1.0
+       proc-macro2@1.0.75
+       quick-error@1.2.3
+       quick-xml@0.35.0
+       quick-xml@0.36.1
+       quinn-proto@0.11.8
+       quinn-udp@0.5.2
+       quinn@0.11.2
+       quote@1.0.35
+       rand@0.8.5
+       rand_chacha@0.3.1
+       rand_core@0.6.4
+       redis@0.27.5
+       redox_syscall@0.4.1
+       redox_users@0.4.4
+       regex-automata@0.4.5
+       regex-syntax@0.8.2
+       regex@1.10.3
+       reqsign@0.16.0
+       reqwest@0.11.23
+       reqwest@0.12.5
+       retry@2.0.0
+       ring@0.17.7
+       rouille@3.6.2
+       rsa@0.9.6
+       rust-ini@0.21.0
+       rustc-demangle@0.1.23
+       rustc-hash@1.1.0
+       rustc-hash@2.0.0
+       rustc_version@0.4.0
+       rustix@0.38.34
+       rustls-native-certs@0.7.0
+       rustls-pemfile@2.1.2
+       rustls-pki-types@1.7.0
+       rustls-webpki@0.102.4
+       rustls@0.23.10
+       ruzstd@0.5.0
+       ryu@1.0.16
+       safemem@0.3.3
+       salsa20@0.10.2
+       same-file@1.0.6
+       scc@2.1.0
+       schannel@0.1.23
+       scopeguard@1.2.0
+       scrypt@0.11.0
+       sdd@0.2.0
+       security-framework-sys@2.9.1
+       security-framework@2.9.2
+       semver@1.0.23
+       serde@1.0.201
+       serde_derive@1.0.201
+       serde_json@1.0.114
+       serde_repr@0.1.18
+       serde_spanned@0.6.5
+       serde_urlencoded@0.7.1
+       serial_test@3.1.0
+       serial_test_derive@3.1.0
+       sha1@0.10.6
+       sha1_smol@1.0.0
+       sha2@0.10.8
+       shlex@1.3.0
+       signal-hook-registry@1.4.1
+       signature@2.2.0
+       simple_asn1@0.6.2
+       slab@0.4.9
+       smallvec@1.11.2
+       socket2@0.5.5
+       spin@0.5.2
+       spin@0.9.8
+       spki@0.7.3
+       static_assertions@1.1.0
+       stringmatch@0.3.3
+       strip-ansi-escapes@0.2.0
+       strsim@0.10.0
+       subtle@2.5.0
+       syn@1.0.109
+       syn@2.0.48
+       sync_wrapper@1.0.1
+       syslog@6.1.0
+       system-configuration-sys@0.5.0
+       system-configuration@0.5.1
+       tar@0.4.40
+       temp-env@0.3.6
+       tempfile@3.10.1
+       termcolor@1.4.0
+       terminal_size@0.3.0
+       termtree@0.4.1
+       test-case-core@3.3.1
+       test-case-macros@3.3.1
+       test-case@3.3.1
+       thirtyfour@0.27.3
+       thirtyfour_sync@0.27.1
+       thiserror-impl@1.0.56
+       thiserror@1.0.56
+       threadpool@1.8.1
+       time-core@0.1.2
+       time-macros@0.2.18
+       time@0.3.36
+       tiny-keccak@2.0.2
+       tiny_http@0.12.0
+       tinyvec@1.6.0
+       tinyvec_macros@0.1.1
+       tokio-macros@2.4.0
+       tokio-native-tls@0.3.1
+       tokio-retry2@0.5.6
+       tokio-rustls@0.26.0
+       tokio-serde@0.8.0
+       tokio-util@0.7.10
+       tokio@1.41.0
+       toml@0.8.10
+       toml_datetime@0.6.5
+       toml_edit@0.22.6
+       tower-layer@0.3.2
+       tower-service@0.3.2
+       tower@0.4.13
+       tracing-attributes@0.1.27
+       tracing-core@0.1.32
+       tracing@0.1.40
+       trim-in-place@0.1.7
+       try-lock@0.2.5
+       twoway@0.1.8
+       twox-hash@1.6.3
+       typenum@1.17.0
+       unicase@2.7.0
+       unicode-bidi@0.3.14
+       unicode-ident@1.0.12
+       unicode-normalization@0.1.22
+       untrusted@0.9.0
+       url@2.5.0
+       urlparse@0.7.3
+       utf8parse@0.2.1
+       uuid@1.9.0
+       vcpkg@0.2.15
+       version-compare@0.1.1
+       version_check@0.9.4
+       void@1.0.2
+       vte@0.11.1
+       vte_generate_state_changes@0.1.1
+       wait-timeout@0.2.0
+       walkdir@2.5.0
+       want@0.3.1
+       wasi@0.11.0+wasi-snapshot-preview1
+       wasm-bindgen-backend@0.2.89
+       wasm-bindgen-futures@0.4.39
+       wasm-bindgen-macro-support@0.2.89
+       wasm-bindgen-macro@0.2.89
+       wasm-bindgen-shared@0.2.89
+       wasm-bindgen@0.2.89
+       wasm-streams@0.4.0
+       web-sys@0.3.66
+       webpki-roots@0.26.2
+       which@6.0.3
+       winapi-i686-pc-windows-gnu@0.4.0
+       winapi-util@0.1.8
+       winapi-x86_64-pc-windows-gnu@0.4.0
+       winapi@0.3.9
+       windows-core@0.52.0
+       windows-sys@0.48.0
+       windows-sys@0.52.0
+       windows-targets@0.48.5
+       windows-targets@0.52.0
+       windows_aarch64_gnullvm@0.48.5
+       windows_aarch64_gnullvm@0.52.0
+       windows_aarch64_msvc@0.48.5
+       windows_aarch64_msvc@0.52.0
+       windows_i686_gnu@0.48.5
+       windows_i686_gnu@0.52.0
+       windows_i686_msvc@0.48.5
+       windows_i686_msvc@0.52.0
+       windows_x86_64_gnu@0.48.5
+       windows_x86_64_gnu@0.52.0
+       windows_x86_64_gnullvm@0.48.5
+       windows_x86_64_gnullvm@0.52.0
+       windows_x86_64_msvc@0.48.5
+       windows_x86_64_msvc@0.52.0
+       winnow@0.6.1
+       winreg@0.50.0
+       winreg@0.52.0
+       winsafe@0.0.19
+       xattr@1.2.0
+       zeroize@1.7.0
+       zip@0.6.6
+       zstd-safe@7.1.0
+       zstd-sys@2.0.10+zstd.1.5.6
+       zstd@0.13.1
+"
+
+# https://github.com/mozilla/sccache?tab=readme-ov-file#build-requirements
+RUST_MIN_VER="1.75.0"
+
+inherit cargo optfeature systemd
+
+DESCRIPTION="ccache/distcc like tool with support for rust and cloud storage"
+HOMEPAGE="https://github.com/mozilla/sccache/";
+SRC_URI="
+       https://github.com/mozilla/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz
+       ${CARGO_CRATE_URIS}
+"
+
+LICENSE="Apache-2.0"
+# Dependent crate licenses
+LICENSE+="
+       Apache-2.0 BSD-2 BSD CC0-1.0 ISC MIT MPL-2.0 Unicode-DFS-2016 ZLIB
+"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~ppc64"
+IUSE="azure dist-client dist-server gcs memcached redis s3 webdav"
+
+BDEPEND="virtual/pkgconfig"
+DEPEND="
+       app-arch/zstd
+       sys-libs/zlib:=
+       dist-server? ( dev-libs/openssl:= )
+       gcs? ( dev-libs/openssl:= )
+"
+RDEPEND="${DEPEND}"
+
+QA_FLAGS_IGNORED="usr/bin/sccache*"
+
+pkg_setup() {
+       export OPENSSL_NO_VENDOR=1
+       export PKG_CONFIG_ALLOW_CROSS=1
+       export ZSTD_SYS_USE_PKG_CONFIG=1
+       rust_pkg_setup
+}
+
+src_configure() {
+       local myfeatures=(
+               $(usev azure)
+               $(usev dist-client)
+               $(usev dist-server)
+               $(usev gcs)
+               $(usev memcached)
+               $(usev redis)
+               $(usev s3)
+       )
+
+       cargo_src_configure --no-default-features
+}
+
+src_test() {
+       # NOTE: Make sure to include itoa@0.3.4 (^0.3.4) manually in `CRATES` 
or disable
+       # `test_adv_cache_hit_rate` and `test_cache_hit_rate`.
+       cargo_src_test
+}
+
+src_install() {
+       cargo_src_install
+
+       keepdir /etc/sccache
+
+       dodoc -r docs
+
+       if use dist-server; then
+               newinitd "${FILESDIR}"/server.initd sccache-server
+               newconfd "${FILESDIR}"/server.confd sccache-server
+
+               newinitd "${FILESDIR}"/scheduler.initd sccache-scheduler
+               newconfd "${FILESDIR}"/scheduler.confd sccache-scheduler
+
+               systemd_dounit "${FILESDIR}"/sccache-server.service
+               systemd_dounit "${FILESDIR}"/sccache-scheduler.service
+       fi
+}
+
+pkg_postinst() {
+       use memcached && optfeature "memcached backend support" 
net-misc/memcached
+       use redis && optfeature "redis backend support" dev-db/redis
+}