04/23: gnu: Add rust-calloop-0.4.

[guix-commits]

efraim pushed a commit to branch master
in repository guix.

commit b6d435dacbd046e9b00511b25e07c6badffcd5d8
Author: Valentin Ignatev <address@hidden>
AuthorDate: Mon Jan 20 01:10:21 2020 +0300

    gnu: Add rust-calloop-0.4.
    
    * gnu/packages/crates-io.scm (rust-calloop-0.4): New variable.
    
    Signed-off-by: Efraim Flashner <address@hidden>
---
 gnu/packages/crates-io.scm | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 002eb45..7c8889c 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -1500,6 +1500,39 @@ little-endian.")
      "The ChaCha family of stream ciphers.")
     (license (list license:asl2.0 license:expat))))
 
+(define-public rust-calloop-0.4
+  (package
+    (name "rust-calloop")
+    (version "0.4.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "calloop" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0q6ic9lr0s86886mbyn4yncg68b2sykgwjf3iygdw01swmxhk8ks"))
+        (modules '((guix build utils)))
+        (snippet
+         '(begin
+            (substitute* "Cargo.toml"
+              (("=1.0.0") "^1.0.0"))
+            #t))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-mio" ,rust-mio-0.6)
+        ("rust-mio-extras" ,rust-mio-extras-2)
+        ("rust-nix" ,rust-nix-0.14))
+       #:cargo-development-inputs
+       (("rust-lazycell" ,rust-lazycell-1.2))))
+    (home-page "https://github.com/Smithay/calloop";)
+    (synopsis "Callback-based event loop")
+    (description
+     "This package provides a callback-based event loop")
+    (license license:expat)))
+
 (define-public rust-caps-0.3
   (package
     (name "rust-caps")