Fix support for `mock --uniqueext'.

diff --git a/bin/mockrun b/bin/mockrun
index 41e1e45..8163f24 100755 (executable)
--- a/bin/mockrun
+++ b/bin/mockrun
@@ -23,7 +23,7 @@ $user=($user=~/$safe/)[0];
 # my $mock="/usr/bin/mock";
 # my @l=(qw(mock -r),$_,qw(--shell));
 my $mock="/usr/bin/setarch";
-my $arch=(/-([^-]+)$/)[0];
+my $arch=(/-(i386|x86_64)(?:-.*)?$/)[0] or die;
 my @l=("setarch",$arch,"/usr/sbin/chroot",$rpath);
 
 # Untaint @ARGV->@args.