file hashes embedded and fcheck

[Bart Silverstrim]

I am starting to use the application fcheck to test system integrity and 
in the MAN file the advanced scan recommends using the -s to "sign each 
file with a CRC/hash signature".

I've not studied how the ELF headers work exactly, but can doing this 
muck up the executable or effect anything with the original files, like 
doing comparisons for installation integrity against the DEB databases 
in apt/synaptic/etc?  Are there problems I could run into doing that?