Please test and consider for stable. Its been in the tree for awhile and I don't think I've ever had a bug about it. hppa: I know you don't have a version stable, but I just threw you on here incase you wanted to make it stable :)
amd64 stable
sparc stable.
ppc stable
All done.
Created attachment 129603 [details, diff] xerces-c-2.7.0-r2.patch S variable wasn't set right