Dear GPC Users, I have pascal code that reads and writes from standard io. I would like to compile it into a library that someone who has only GCC can link to. With the help of the GPC demo programs, I have arrived at the solution I give below. What is the standard way of solving this problem? Yours, Kevan Hashemi ----------- My Solution ----------- We arrange our pascal code as a program (as in gcc_c_pas.pas demo): program example; procedure pascal_procedure; attribute (name='Pascal_Procedure'); begin WriteLn('Here we are in the Pascal Procedure.'); Flush(Output) end; begin end. We compile this program as a dynamic library: gpc -o example.o -dynamiclib example.pas --gpc-main=dummy We can look inside with UNIX command "otool -T -v example.o" and see the _p_initialize routine is there for us to link to. In our C program we have: extern int _p_initialize (int argc, char **argv, char **envp); and in the main loop or init routine we put: _p_initialize (0,NULL,NULL); Now we link with GCC: gcc -o lwdaq lwdaq.o example.o We can call Pascal_Procedure from the C program and get output to the terminal.