From 6261309d1b329537d8b968c8d9a9d7ae0be36178 Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Mon, 3 Sep 2018 12:09:14 +0200
Subject: [PATCH] document the fact that --define symbols are completely case
 insensitive; closes #7506

---
 doc/nimc.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/nimc.rst b/doc/nimc.rst
index 0346b98e9..4082b5378 100644
--- a/doc/nimc.rst
+++ b/doc/nimc.rst
@@ -143,6 +143,9 @@ which may be used in conjunction with the `compile time define
 pragmas<manual.html#implementation-specific-pragmas-compile-time-define-pragmas>`_
 to override symbols during build time.
 
+Compile time symbols are completely **case insensitive** and underscores are
+ignored too. ``--define:FOO`` and ``--define:foo`` are identical.
+
 
 Configuration files
 -------------------