Evolution of ELF symbol management

[Andreas Schwab]

On Nov 22 2016, Florian Weimer <fweimer@redhat.com> wrote:

> There also configure scripts which do
>
> extern char whatever();
> main () { whatever(); }
>
> for link testing, without including the appropriate header (perhaps
> deliberately).  That could be considered broken.  I'm not sure.

While getting the return type wrong makes it slightly broken, the C
standard does support declaring standard functions on your own, as long
as you don't need special types.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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