Shared Libraries: Unique to Suns??

[Guy Harris]

>This is not entirely true.  Yes, the SVR4 dynamic shared libraries
>began with the SunOS shared libraries.  But the programming interface
>(dlopen() et al) and many performance improvements were done at AT&T
>for SVR4.

The implementations of "dlopen()" and company were, as I remember, a bit
different, even though the interfaces were compatible.  Was the
interface was originally done by AT&T? (I've asked Rob Gingell as
well....)

>I don't know for sure how much of the AT&T code Sun wound up using, since
>I don't know if the latest SunOS shared libraries are in ELF format, as
>the AT&T ones are.

SunOS 4.1 doesn't use ELF.