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[Gcl-devel] Problem compiling embedded C code

From: jeff
Subject: [Gcl-devel] Problem compiling embedded C code
Date: Fri, 08 Feb 2008 15:52:07 +0000
User-agent: Internet Messaging Program (IMP) H3 (4.0.4)

As I mentioned in an earlier message, I am trying to get some
software -- O-Plan, an AI planning system -- to work in a current
GCL.  I think I've mostly succeeded, for the Lisp code.

However, I also have some embedded C code, defined with Clines,
defentry and so on, and I can't get it to even compile successfully.
(I'm using gcl-2.6.8pre.)


(compile-file "c-example.lsp")

Compiling c-example.lsp.
End of Pass 1. End of Pass 2. c-example.c:5150: error: static declaration of ?zwait? follows non-static declaration
c-example.h:3: error: previous declaration of ?zwait? was here

For this source:

;;; The recommended macro...

(eval-when (eval compile)
 (set-macro-character #\%
   #'(lambda (s c) (declare (ignore c)) (values (read-line s)))))

;;; (WAIT) returns (pid . status) when the next child exits.


%       static object zwait()
%       {
%           int status = -1, pid;
%           object result;
%           extern int errno;

%           check_arg(0);
%           pid = wait(&status);

%           result = make_cons(Cnil, Cnil);
%           vs_push(result);
%           result->c.c_car = make_fixnum(pid);
%           result->c.c_cdr = make_fixnum(pid != -1 ? status : errno);
%           return(vs_pop);
%       }


(defentry wait () (object zwait))

-- Jeff

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