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zcashd/depends/packages/crate_crossbeam_queue.mk

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Upgrade librustzcash to 0.2.0 librustzcash now requires a minimum of Rust 1.36.0. The proc-macro2, quote, syn, and unicode-xid dependencies are pulled in because we moved to using ff_derive inside pairing to derive the BLS12-381 fields. We will be going back to explicit implementations with the jubjub and bls12_381 crates, so these dependencies will disappear once that is done. The autocfg crate is pulled in by the upgraded num-integer crate, which is transitively used by fpe. Rewriting fpe to not use num-bigint would drop: - autocfg - num-bigint - num-integer - num-traits We primarily depend on rand_core in our crates. The rand crate, and its other dependencies, are pulled in for two reasons: - The group crate exposes testing helper functions in its public API that use distribution sampling APIs in the rand crate. - zcash_primitives::transaction::Builder uses rand::seq::SliceRandom to shuffle the order of Sapling spends and outputs. Refactoring these in order to drop rand would additionally drop: - c2-chacha - rand_chacha - rand_hc - rand_xorshift
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package=crate_crossbeam_queue
$(package)_crate_name=crossbeam-queue
depends: cargo update
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$(package)_version=0.2.3
depends: Update to latest librustzcash with sapling-crypto dependencies
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$(package)_download_path=https://static.crates.io/crates/$($(package)_crate_name)
$(package)_file_name=$($(package)_crate_name)-$($(package)_version).crate
depends: cargo update
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$(package)_sha256_hash=774ba60a54c213d409d5353bda12d49cd68d14e45036a285234c8d6f91f92570
depends: Update to latest librustzcash with sapling-crypto dependencies
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$(package)_crate_versioned_name=$($(package)_crate_name)
define $(package)_preprocess_cmds
$(call generate_crate_checksum,$(package))
endef
define $(package)_stage_cmds
$(call vendor_crate_source,$(package))
endef