[PATCH 28/96] gnu: Add ocaml-lwt

[Julien Lepiller]

* gnu/packages/ocaml.scm (ocaml-lwt): New variable.
---
 gnu/packages/ocaml.scm | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 7328004a0..5418ee235 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -47,6 +47,8 @@
   #:use-module (gnu packages lynx)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages glib)
+  #:use-module (gnu packages libevent)
   #:use-module (gnu packages m4)
   #:use-module (gnu packages multiprecision)
   #:use-module (gnu packages ncurses)
@@ -1313,3 +1315,38 @@ lets the client choose the concrete timeline.")
     (synopsis "OCaml bindings for OpenSSL")
     (description "OCaml bindings for OpenSSL.")
     (license license:lgpl2.1)))
+
+(define-public ocaml-lwt
+  (package
+    (name "ocaml-lwt")
+    (version "2.6.0")
+    (home-page "https://github.com/ocsigen/lwt";)
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append home-page "/archive/" version ".tar.gz"))
+        (sha256 (base32
+                  "1gbw0g8a5a4b16diqrmlhc8ilnikrm4w3jjm1zq310maqg8z0zxz"))))
+    (build-system ocaml-build-system)
+    (arguments `(#:configure-flags
+                 (list "--enable-ssl" "--enable-glib" "--enable-react"
+                       "--enable-ppx")
+                 #:phases
+                 (modify-phases %standard-phases
+                   (add-before 'configure 'disable-some-checks
+                     (lambda* (#:key #:allow-other-keys)
+                       (substitute* "tests/unix/main.ml"
+                         (("Test_mcast.suite;") "")))))))
+    (native-inputs `(("pkg-config" ,pkg-config)
+                     ("ppx-tools" ,ocaml-ppx-tools)))
+    (inputs `(("libev" ,libev)
+              ("glib" ,glib)))
+    (propagated-inputs `(("result" ,ocaml-result)
+                         ("ocaml-ssl" ,ocaml-ssl)
+                         ("ocaml-react" ,ocaml-react)))
+    (synopsis "Cooperative threads and I/O in monadic style")
+    (description "Lwt provides typed, composable cooperative threads.  These
+make it easy to run normally-blocking I/O operations concurrently in a single
+process.  Also, in many cases, Lwt threads can interact without the need for
+locks or other synchronization primitives.")
+    (license license:lgpl2.1)))
-- 
2.11.0