I have been google searching but I have not yet found anything helpful

Try googling for "function declared but not defined" (including the quotes).
Seems that a solution might be as simple as removing "static" from line 3242 of Pg.c ... or maybe replacing that occurrence of "static" with "extern".
See https://docs.microsoft.com/en-us/cpp/error-messages/compiler-errors-1/compiler-error-c2129?view=vs-2019 for the fundamental explanation; also https://stackoverflow.com/questions/19609239/function-declared-but-not-defined-yet-it-is-defined for some discussion - though the latter link is actually C++.

Cheers,
Rob

In reply to Re: problem installing DBD::Pg by syphilis
in thread problem installing DBD::Pg by expo1967

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