Can't find lua_gethook in lua5.1.dll

[jdarling@...]

I've been working on a conversion to Lua 5.1 from Lua 5.0.  According to
the lua 5.1 docs lua_gethook still exists, but when I try and link to it
from my project (Pascal) I get an error saying that lua_gethook doesn't
exist in lua5.1.dll.  Is there by chance a debug version of Lua 5.1
that has this call, or is the prototype not properly documented?

Thanks,
 - Jeremy

PS: I googled the heck out of this to try and find an answer.  If I
missed it in the results I appologize, and would appriciate the link
that I missed :)

"Help I suffer from the oxymoron Corporate Security."