Embedded SQL in Firebird

Hi, I'm making aplications that connect to Firebird
using embedded SQL. It's C program.
I know i need to precompile, compile ( but not link ), and
finally link, so ...
i do precompile using gpre, from file with extension .e to .c
(it's ok), but I don't know what compiler to use for rest of
the job, I tried with gcc, cl, and bcc32 and failed. Maybe I
did not configure those .dll files that come with Firebird
(I'm newbee in Firebird).
If someone have done this before, have any idea or know
some link for tutorial, hm well THANKS a lot

bye