CurrentMemoryContext

Is CurrentMemoryContext a postgres symbol that I can link against?

Sorry if this is not a postgres question, it may be down to my ignorance
of C, perl or something else.

I've got a bit of code (a stemmer written in C) that I want to make
accessable to postgres, as a .so, and perl. The .so bit works, but I'm
trying to now build the Perl module calling the C code. I'm getting

Undefined symbol "CurrentMemoryContext"

I can see this symbol refered to in palloc.h but beond that I'm stuck.

Bob Parkinson
rwp(at)biome(dot)ac(dot)uk
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