compile: link dynamic OR static library in Windows

[Richard (Rikki) Andrew Cattermole]

Ah doh, MSVC link doesn't use -L.

$ dmd -i "-L/LIBPATH:C:\Program Files\PostgreSQL\15\lib" -Llpq app.d

I think that is the option you want.

Worst case scenario just copy the files to your working directory and it 
should find it without the additional search path.