use prefix instead of platform to decide wether a package is binary

openpkg-tool/openpkg-build.pl

@@ -1632,7 +1632,7 @@ sub print_list1 ($$$@$) {
                 # $cmd1 = "$RPM_NPRIV$opt --makeproxy $ppkg -- -o $bpkg";
                 #
                 $cmd1 = "( cd $c->{rpmdir} && $RPM_NPRIV$opt --makeproxy $ppkg )";
-            } elsif (defined $_->{platform}) {
+            } elsif (defined $_->{prefix}) {
                 $cmd1 = "$CURL -q -s -o $bpkg $spkg";
             } else {
                 $cmd1 = "$RPM_NPRIV$opt --rebuild $spkg";