From 07b4cd3a48022a472c90ec46f2e8b08d9cc8fc3e Mon Sep 17 00:00:00 2001
From: Julien Lepiller <julien@lepiller.eu>
Date: Sat, 21 Oct 2017 15:54:04 +0200
Subject: [PATCH] gnu: camlp5: install META file.

* gnu/packages/ocaml.scm (camlp5) [phases]: New install-meta phase.
---
 gnu/packages/ocaml.scm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index aa2f006674..40d42a5d49 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -401,7 +401,12 @@ syntax of OCaml.")
                   (lambda _
                     (zero? (system* "make" "-j" (number->string
                                                  (parallel-job-count))
-                                    "world.opt")))))))
+                                    "world.opt"))))
+         ;; Required for findlib to find camlp5's libraries
+         (add-after 'install 'install-meta
+           (lambda* (#:key outputs #:allow-other-keys)
+             (install-file "etc/META" (string-append (assoc-ref outputs "out")
+                                                     "/lib/ocaml/camlp5/")))))))
     (home-page "http://camlp5.gforge.inria.fr/")
     (synopsis "Pre-processor Pretty Printer for OCaml")
     (description