Don't build aarch64 on el7

sysbench.spec

@@ -1,7 +1,7 @@
 Summary:       System performance benchmark
 Name:          sysbench
 Version:       1.0.4
-Release:       1%{?dist}
+Release:       2%{?dist}
 License:       GPLv2+
 Group:         Applications/System
 Source0:       https://github.com/akopytov/%{name}/archive/%{version}/%{name}-%{version}.tar.gz
@@ -20,7 +20,12 @@ BuildRequires: /usr/bin/cram
 
 # luajit is needed and is not available for ppc64 and ppc64le.
 # Use the same arches as luajit.
+# luajit 2.0.4, which is in EL7, doesn't have support for aarch64
+%if %{?el7}
+ExclusiveArch:  %{arm} %{ix86} x86_64 %{mips}
+%else
 ExclusiveArch:  %{arm} %{ix86} x86_64 %{mips} aarch64
+%endif
 
 
 %description
@@ -84,6 +89,9 @@ cd tests
 
 
 %changelog
+* Mon Mar 13 2017 Xavier Bachelot <xavier@bachelot.org> 1.0.4-2
+- Don't build aarch64 on el7.
+
 * Mon Mar 13 2017 Xavier Bachelot <xavier@bachelot.org> 1.0.4-1
 - Fix build for i686.
 - Drop bundled cram.