Prepending _ in C external names necessary?

[spw2562 at ritcv.UUCP]

In article <13697 at rochester.UUCP> ken at rochester.UUCP (Ipse dixit) writes:
>Ah, but all the assembler symbols like r6 are short. If ...
>-- 
>UUCP: ..!{allegra,decvax,seismo}!rochester!ken ARPA: ken at rochester.arpa
You're considering strictly assembler symbols.  I was refering also to
global names from libraries, et al, that are currently defined by (in?)
the assembler.  For example, say assembler ZZZ has 4 characters significance.
What will differentiate(sp?) a call to 'exit' from a call to 'exit_'?
'exit' and '_exit' are easy to differentiate.  I think that pre-pending
is much less likely to fail than appending.
But don't take that as a guarantee.. 8-)

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