Re: EU::MM again.

Can anyone offer pointers?

I may be being thick (it wouldn't be the first time) and thus be missing a subtle point to your question, but what you want to do is quite simple:

my @lib_flags = qw(this that other);

if (running_on_64bit()) {
    push @lib_flags, 'libpq64.lib';
}
else {
    push @lib_flags, 'libpq.lib';
}

# ... time passes

WriteMakefile(
    NAME => 'DBD::Pg',
    LIBS => ["@LIB_FLAGS"],
    ...
);
[download]

The reference to a stringified array is a little weird, I'll grant you that. But it should work. Looking at the Makefile.PL, it seems that setting the POSTGRES_LIB environment variable should work out of the box.

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