Architecture specific change in rpms/fio.git

The package rpms/fio.git has added or updated architecture specific content in its
spec file (ExclusiveArch/ExcludeArch or %ifarch/%ifnarch) in commit(s):
https://src.fedoraproject.org/cgit/rpms/fio.git/commit/?id=84c4a84253b73b037....

Change:
+%ifarch x86_64

Thanks.

Full change:
============

commit 84c4a84253b73b03706cd683018e8c93d2e305a1
Author: Richard W.M. Jones 
Date:   Thu Oct 1 15:39:22 2020 +0100

Make the PMDK engines depend on ifarch x86_64.

diff --git a/fio.spec b/fio.spec
index ca6fabe..540bfa8 100644
--- a/fio.spec
+++ b/fio.spec
@@ -43,12 +43,14 @@ Requires:       %{name}%{?_isa} = %{version}-%{release}
 %description engine-libaio
 Linux libaio engine for %{name}.

+%ifarch x86_64
 %package engine-dev-dax
 Summary:        PMDK dev-dax engine for %{name}.
 Requires:       %{name}%{?_isa} = %{version}-%{release}

%description engine-dev-dax
 PMDK dev-dax engine for %{name}.
+%endif

%package engine-http
 Summary:        HTTP engine for %{name}.
@@ -64,12 +66,14 @@ Requires:       %{name}%{?_isa} = %{version}-%{release}
 %description engine-nbd
 Network Block Device (NBD) engine for %{name}.

+%ifarch x86_64
 %package engine-pmemblk
 Summary:        PMDK pmemblk engine for %{name}.
 Requires:       %{name}%{?_isa} = %{version}-%{release}

%description engine-pmemblk
 PMDK pmemblk engine for %{name}.
+%endif

%package engine-rados
 Summary:        Rados engine for %{name}.