Piergiorgio Valli <piervalli@xxxxxxxxx> writes: > When I am building the library with libpq.a it shows following error, > probably there are missings libraries. Do you know the additional library > that I need to link? >> ld: error: undefined symbol: pg_encoding_mblen >> ld: error: undefined symbol: pg_vsnprintf libpgcommon and libpgport regards, tom lane