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gnu: Add rust-cfg-if.

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* gnu/packages/crates-io.scm (rust-cfg-if): New variable.
This commit is contained in:
Efraim Flashner 2019-08-04 12:53:04 +03:00
parent dcc0069932
commit f69bf22334
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1 changed files with 21 additions and 0 deletions
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21
gnu/packages/crates-io.scm
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@ -91,6 +91,27 @@ (define-public rust-bitflags
(license (list license:asl2.0
license:expat))))
(define-public rust-cfg-if
(package
(name "rust-cfg-if")
(version "0.1.9")
(source
(origin
(method url-fetch)
(uri (crate-uri "cfg-if" version))
(file-name (string-append name "-" version ".tar.gz"))
(sha256
(base32
"0csygklgz3ybpr0670rkip49zh76m43ar3k7xgypkzbzrwycx1ml"))))
(build-system cargo-build-system)
(home-page "https://github.com/alexcrichton/cfg-if")
(synopsis "Define an item depending on parameters")
(description "This package provides a macro to ergonomically define an item
depending on a large number of #[cfg] parameters. Structured like an
@code{if-else} chain, the first matching branch is the item that gets emitted.")
(license (list license:asl2.0
license:expat))))
(define-public rust-proc-macro2
(package
(name "rust-proc-macro2")