Hi guys, been spending some time compiling my app but nothing seems to work. here's the picture: - created a Main.hsc which include some external libs. - included this pragma is Main.hsc {-# OPTIONS -fglasgow-exts #-} -compiled Main.hsc with: $ hsc2hs -I/usr/local/pgsql/include Main.hsc all went well with this - tried compiling this way: $ ghc -o test -L/usr/local/pgsql/lib Main.hs here's the error: Main.o(.text+0xbd): In function `r289_entry': : undefined reference to `PQgetvalue' Main.o(.text+0x28f): In function `r28b_entry': : undefined reference to `PQexec' Main.o(.text+0x42f): In function `r28d_entry': : undefined reference to `PQreset' Main.o(.text+0x573): In function `r28f_entry': : undefined reference to `PQfinish' Main.o(.text+0x6b7): In function `r28h_entry': : undefined reference to `PQstatus' Main.o(.text+0x82b): In function `r28j_entry': : undefined reference to `PQconnectdb' collect2: ld returned 1 exit status any ideas? kind regards, eyan -- http://www.eyan.org Object-oriented programming offers a sustainable way to write spaghetti code.