[OpenImageIO/el6] Try and make sure QT4 is installed.

[Richard Shaw]

commit a746e34c3f1bcd96e781bc7830ed10394b1e0748
Author: Richard M. Shaw <hobbes1069 at gmail.com>
Date:   Tue May 1 13:09:33 2012 -0500

    Try and make sure QT4 is installed.

 OpenImageIO.spec |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/OpenImageIO.spec b/OpenImageIO.spec
index a853c6b..46144ec 100644
--- a/OpenImageIO.spec
+++ b/OpenImageIO.spec
@@ -18,7 +18,8 @@ Patch1:         OpenImageIO-1.0.0-tbb_include.patch
 Patch2:         OpenImageIO-1.0.3-ppc64.patch
 
 BuildRequires:  cmake
-BuildRequires:  boost-devel glew-devel qt-devel OpenEXR-devel ilmbase-devel
+BuildRequires:  boost-devel glew-devel OpenEXR-devel ilmbase-devel
+BuildRequires:  qt-devel >= 4
 BuildRequires:  python2-devel txt2man
 BuildRequires:  libpng-devel libtiff-devel openjpeg-devel
 BuildRequires:  zlib-devel jasper-devel