From c287d67872a221c4dd3792c9e7d1f83b6e018be6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A1s=20Retzler?= <ha7ilm@users.noreply.github.com>
Date: Sat, 9 Apr 2016 19:15:04 +0200
Subject: [PATCH] Update README.md

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

diff --git a/README.md b/README.md
index 56e69fb..86a5248 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ The project was only tested on Linux. It has the following dependencies: `libfft
 
 If you compile on ARM, please edit the Makefile and tailor `PARAMS_NEON` for your CPU.
 To run the examples, you will also need <a href="http://sdr.osmocom.org/trac/wiki/rtl-sdr">rtl_sdr</a> from Osmocom, and the following packages (at least on Debian): `mplayer octave gnuplot gnuplot-x11`
+If you compile *fftw3* from sources to use with *libcsdr*, you need to configure it with 32-bit float support enabled: `./configure --enable-float`
 
 Credits
 -------