[zynaddsubfx] /usr/bin/ld: cannot find -lXext

[Robert Scheck]

commit ad8d55f7f7a6d9f04103fa09f07d22cbeef3b43d
Author: Robert Scheck <robert at fedoraproject.org>
Date:   Sun Jan 15 18:25:12 2012 +0100

    /usr/bin/ld: cannot find -lXext

 zynaddsubfx.spec |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/zynaddsubfx.spec b/zynaddsubfx.spec
index d4b903f..c256fc6 100644
--- a/zynaddsubfx.spec
+++ b/zynaddsubfx.spec
@@ -31,6 +31,7 @@ BuildRequires:  fltk-fluid
 BuildRequires:  ImageMagick
 BuildRequires:  jack-audio-connection-kit-devel
 BuildRequires:  lash-devel
+BuildRequires:  libXext-devel
 BuildRequires:  libX11-devel
 BuildRequires:  mxml-devel
 BuildRequires:  zlib-devel