Architecture specific change in rpms/cyrus-imapd.git

The package rpms/cyrus-imapd.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/cyrus-imapd.git/commit/?id=0a476b2b8....

Change:
+%ifnarch s390x ppc64 i686 armv7hl

Thanks.

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

commit 0a476b2b84a2b1f492518cd098047d58495584a1
Author: Jason Tibbitts 
Date:   Wed May 31 20:25:21 2017 -0500

OK, just avoid __isa_bits.

diff --git a/cyrus-imapd.spec b/cyrus-imapd.spec
index 11304d7..6b9d140 100644
--- a/cyrus-imapd.spec
+++ b/cyrus-imapd.spec
@@ -403,9 +403,10 @@ find %buildroot -name ".packlist" -exec rm {} ;
 # https://github.com/cyrusimap/cyrus-imapd/issues/1993
 %ifnarch s390x ppc64
 make %{?_smp_mflags} check || exit 1
+%endif

%if %{with cassandane}
-%if %__isa_bits == 64
+%ifnarch s390x ppc64 i686 armv7hl
 # Run the Cassandane test suite.  This will exhaustively test the various
 # server components, but running it in a mock chroot is rather an exercise.
 # Sadly Cassandane simply can't run on a 32-bit host at the moment.  It needs
@@ -487,7 +488,6 @@ export CYRUS_USER=$USER

%endif
 %endif
-%endif

%pre