* gnu/packages/ocaml.scm (ocaml-stdio): New variable.
---
 gnu/packages/ocaml.scm | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index bce2f4f13..dddad4f33 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -5300,3 +5300,31 @@ Supported versions are 4.02, 4.03, 4.04, 4.05 and 4.06.  For each version,
 there is a snapshot of the parsetree and conversion functions to the next
 and/or previous version.")
     (license license:lgpl2.1+)))
+
+(define-public ocaml-stdio
+  (package
+    (name "ocaml-stdio")
+    (version "0.11.0")
+    (home-page "https://github.com/janestreet/stdio")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url (string-append home-page ".git"))
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32
+         "1facajqhvq34g2wrg368y0ajxd6lrj5b3lyzyj0jhdmraxajjcwn"))))
+    (build-system dune-build-system)
+    (inputs `(("ocaml-base" ,ocaml-base)
+              ("ocaml-sexplib0" ,ocaml-sexplib0)))
+    (arguments
+     '(#:tests? #f)) ;no tests
+    (synopsis "Standard IO library for OCaml")
+    (description
+     "Stdio implements simple input/output functionalities for OCaml.
+
+It re-exports the input/output functions of the OCaml standard
+libraries using a more consistent API.")
+    (license license:expat)))
-- 
2.20.1