From 24b484ecb19bd5fad60049365232959405ee96c2 Mon Sep 17 00:00:00 2001
From: Etienne Millon <me@emillon.org>
Date: Fri, 4 Jun 2021 12:27:49 +0200
Subject: [PATCH] Document (enabled_if)

Signed-off-by: Etienne Millon <me@emillon.org>
---
 doc/dune-files.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/dune-files.rst b/doc/dune-files.rst
index 71b63964b740..8d7a5170600d 100644
--- a/doc/dune-files.rst
+++ b/doc/dune-files.rst
@@ -1881,6 +1881,9 @@ Where ``<optional-fields>`` are:
   See `MDX's documentation <https://github.com/realworldocaml/mdx>`__ for more
   details on preludes.
 
+- ``(enabled_if <blang expression>)`` is the same as the corresponding field of
+  `library`_.
+
 - ``(package <package>)`` specifies which package to attach this stanza to
   (similarly to when ``(package)`` is attached to a ``(rule)`` stanza. When
   ``-p`` is passed, ``(mdx)`` stanzas with an other package will be ignored.