[step] appstream f20+ only

[Rex Dieter]

commit b3ec4e46afd3926f6f8528a553a1612f1278046d
Author: Rex Dieter <rdieter at math.unl.edu>
Date:   Mon Sep 29 13:39:03 2014 -0500

    appstream f20+ only

 step.spec |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/step.spec b/step.spec
index f2590a8..680245e 100644
--- a/step.spec
+++ b/step.spec
@@ -15,7 +15,9 @@ Source0: http://download.kde.org/%{stable}/%{version}/src/%{name}-%{version}.tar
 
 BuildRequires: desktop-file-utils
 BuildRequires: kdelibs4-devel >= %{version}
+%if 0%{?fedora} > 20
 BuildRequires: libappstream-glib
+%endif
 BuildRequires: pkgconfig(eigen2)
 BuildRequires: pkgconfig(gsl)
 BuildRequires: pkgconfig(libqalculate)