Until openSUSE 11.1, we carried a patch unified-reject-files.diff in our patch
package, which implemented an option to generate reject files in unified
format, including support for including the C function names. Since openSUSE
11.2, this patch was dropped because upstream implemented roughly the same
feature. However the upstream implementation does not include C function names,
so we lost that feature.

If would be great if the missing piece could be forward ported (and ideally
sent upstream for inclusion.)