Some time ago, Hrvoje Niksic wrote...
|+
| For the record: I *do* note that md5 checksums are useful for things
| other than the internal buffer representation. But I don't think that
| `md5' *function* should have that additional CODING-SYSTEM argument.
| Couldn't it pick the coding system from a generally useful variable,
| like coding-system-for-write? Am I making any sense?
Buffer-local variable buffer-file-coding-system contains coding system
for the current buffer.
Kirill