My Windows box says: "PostgreSQL 8.1.4 on i686-pc-mingw32, compiled by GCC gcc.exe (GCC)3.4.2 (mingw-special)"
My BSD box says:"PostgreSQL 8.1.4 on i686-pc-mingw32, compiled by GCC gcc.exe (GCC)3.4.2 (mingw-special)"
Seems to be the same