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eth2_hashing: make cpufeatures dep optional (#3309)

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## Issue Addressed

#3308 

## Proposed Changes

* add `cpufeatures` feature.
* make `cpufeature` default feature to preserve the compatibility;
* hide all `cpufeature`-related code with `cpufeatures` feature.

Co-authored-by: Kirill <kirill@aurora.dev>
This commit is contained in:
Kirill
2022-07-06 22:00:58 +00:00
parent d5e2d98970
commit 5dbfb37d74
2 changed files with 6 additions and 5 deletions
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5
crypto/eth2_hashing/Cargo.toml
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@@ -8,9 +8,9 @@ description = "Hashing primitives used in Ethereum 2.0"
[dependencies]
lazy_static = { version = "1.4.0", optional = true }
cpufeatures = { version = "0.2.2", optional = true }
ring = "0.16.19"
sha2 = "0.10.2"
cpufeatures = "0.2.2"
[dev-dependencies]
rustc-hex = "2.1.0"
@@ -19,5 +19,6 @@ rustc-hex = "2.1.0"
wasm-bindgen-test = "0.3.18"
[features]
default = ["zero_hash_cache"]
default = ["zero_hash_cache", "detect-cpufeatures"]
zero_hash_cache = ["lazy_static"]
detect-cpufeatures = ["cpufeatures"]