From 1366d0af6d4be19983fa678cb4f84270f9795ffe Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Thu, 5 May 2016 09:14:58 +0100
Subject: [PATCH] note --with-modules flag for IM

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index b9b0ff3e..3f5112e9 100644
--- a/README.md
+++ b/README.md
@@ -234,6 +234,10 @@ If available, libvips adds support for loading all libMagick-supported
 image file types. Use `--with-magickpackage=GraphicsMagick` to build against 
 graphicsmagick instead.
 
+Imagemagick 6.9+ needs to have been built with `--with-modules`. Most packaged
+IMs are, I think, but if you are rolling your own, you'll need to pass
+this flag to configure. 
+
 ### pangoft2
 
 If available, libvips adds support for text rendering. You need the