* gnu/packages/rust.scm (rust-unreachable): 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 22ce59869..9893e5a72 100644
--- a/gnu/packages/rust.scm
+++ b/gnu/packages/rust.scm
@@ -607,3 +607,25 @@ local storage (TLS) so any type can be stored into TLS.")
"Bitflags provides a macro to generate structures which
behave like bitflags.")
(license (list license:expat license:asl2.0))))
+
+(define-public rust-unreachable
+ (package
+ (name "rust-unreachable")
+ (version "0.1.1")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (crate-uri "unreachable" version))
+ (file-name
+ (string-append name "-" version ".tar.gz"))
+ (sha256
+ (base32
+ "14gzpm329nrfgjvxf6zh77sp7plxakcnsq8p8xk9474fn7fyaahz"))))
+ (build-system cargo-build-system)
+ (inputs `(("rust-void" ,rust-void "src")))
+ (home-page "https://github.com/reem/rust-unreachable.git";)
+ (synopsis "Unreachable code optimization hint stable rust")
+ (description
+ "Unreachable provides an unreachable code optimization hint in
+stable rust, and some useful extension traits for @code{Option} and
@code{Result}.")
+ (license license:expat)))
--
2.11.0
