When was scm_sizet deprecated?

[Bruce Korb]

Hi,

I need to know which version:  1.6? 1.7? 1.8?
I don't have history, though I know the #define showed up
in deprecated.h by 1.8.8.  But I still have 1.6 clients,
so I cannot just replace all scm_sizet's with size_t.
I think I need to add another ag_scm_size_t thinegy that
is sometimes #defined to scm_sizet and other times size_t.
Since I do not have a history of sources, I need to know
the version when scm_sizet was deprecated.  Thank you.