[PATCH 02/86] gnu: Add rust-spin.

[ng0 <ng0@libertad.pw>]

* gnu/packages/rust.scm (rust-spin): New variable.
---
 gnu/packages/rust.scm | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/gnu/packages/rust.scm b/gnu/packages/rust.scm
index 2137ba601..b0ac22a78 100644
--- a/gnu/packages/rust.scm
+++ b/gnu/packages/rust.scm
@@ -286,3 +286,25 @@ safety and thread safety guarantees.")
      "Libc provides a library for types and bindings to native
 C functions often found in libc or other common platform libraries.")
     (license (list license:expat license:asl2.0))))
+
+(define-public rust-spin
+  (package
+    (name "rust-spin")
+    (version "0.4.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "spin" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0lvyyxg646wl67b41655p2z25s725sw1rsfvpnm8d7vq5dpa45hx"))))
+    (build-system cargo-build-system)
+    (home-page "https://github.com/mvdnes/spin-rs.git")
+    (synopsis "Spin is a library which implements a simple spinlock")
+    (description
+     "Synchronization primitives based on spinning.  They may contain
+data, they are usable without `std` and static initializers are
+available.")
+    (license license:expat)))
-- 
2.11.0