17/20: gnu: Add ocaml-syntax-shims.

[guix-commits]

roptat pushed a commit to branch master
in repository guix.

commit 5b61a1472b998c39b069e9a557c3029e1351d0a7
Author: pukkamustard <pukkamustard@posteo.net>
AuthorDate: Tue Jun 1 20:23:00 2021 +0000

    gnu: Add ocaml-syntax-shims.
    
    * gnu/packages/ocaml.scm (ocaml-syntax-shims): New variable.
    
    Signed-off-by: Julien Lepiller <julien@lepiller.eu>
---
 gnu/packages/ocaml.scm | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index b378708..4f94273 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -6627,3 +6627,28 @@ exposed the intrinsics properly, the compiler doesn't 
have any fast blits
 between Bigstrings and other string-like types.  @code{bigstringaf} provides
 these missing pieces.")
     (license license:bsd-3)))
+
+(define-public ocaml-syntax-shims
+  (package
+    (name "ocaml-syntax-shims")
+    (version "1.0.0")
+    (home-page "https://github.com/ocaml-ppx/ocaml-syntax-shims";)
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url home-page)
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32
+         "0l1i8z95qgb0lxlrv3yb5nkp391hqsiyi4r91p12k3xmggqixagf"))))
+    (build-system dune-build-system)
+    (properties
+     `((upstream-name . "ocaml-syntax-shims")))
+    (synopsis
+     "Backport new syntax to older OCaml versions")
+    (description
+     "This packages backports new features of the language to older
+compilers, such as let+.")
+    (license license:expat)))