patching binaries at install time without breaking rpm -V?

[Christian Goetze <cg sensage com>]

How do people manufacture relocatable binary rpms when the binaries in 
question have hardwired paths in them?

Take, for example: perl. It is really unfortunate that all the search 
paths for the built-in libraries are encoded as absolute paths at 
compile time.PGSQL is the same way. The only way that comes to mind is 
to ensure these paths to be reasonably long, then to patch the binaries 
after installation to actually contain the install-time paths. 
Unfortunately, this breaks "rpm -V" - for good reason. Is there a way to 
invoke the signature step via the post-install scriptlet? Or do people 
have better ideas on how to make relocatable binary rpms?

I really wished that software writers would use the equivalent of perl's 
FindBin construct to construct their internal search paths...
--
cg