18/45: gnu: Add ocaml-mirage-clock.

[guix-commits]

cbaines pushed a commit to branch master
in repository guix.

commit 0d4ff1c2ad9b1451e38ede6f647eae492125cc08
Author: raingloom <raingloom@riseup.net>
AuthorDate: Wed Feb 15 23:00:07 2023 +0100

    gnu: Add ocaml-mirage-clock.
    
    * gnu/packages/ocaml.scm (ocaml-mirage-clock): New variable.
    
    Signed-off-by: Christopher Baines <mail@cbaines.net>
---
 gnu/packages/ocaml.scm | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 061654facd..3c77cbfa9b 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -3825,6 +3825,30 @@ provided check the input and raise on negative or out of 
bound input.")
      "Defines the signature for time-related operations for MirageOS.")
     (license license:isc)))
 
+(define-public ocaml-mirage-clock
+  (package
+    (name "ocaml-mirage-clock")
+    (version "4.2.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/mirage/mirage-clock";)
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0rkara9i3dvnzrb8jl2vkx8hgamvxnksin67wmhbv9d4i758amjy"))))
+    (build-system dune-build-system)
+    (home-page "https://github.com/mirage/mirage-clock";)
+    (synopsis "Libraries and module types for portable clocks")
+    (description
+     "This library implements portable support for an operating system
+timesource that is compatible with the MirageOS library interfaces.  It
+implements an @code{MCLOCK} module that represents a monotonic timesource
+since an arbitrary point, and @code{PCLOCK} which counts time since the Unix
+epoch.")
+    (license license:isc)))
+
 (define-public ocaml-mirage-unix
   (package
     (name "ocaml-mirage-unix")