Very Computer

1. va_arg, mips-sgi-irix5.3, __builtin_alignof

Using gcc-2.6.3 I am trying to build 19.12 on mips-sgi-irix5.3.  Before
I embark on a debugging mission, I wonder if anyone else has already
solved the problem below or knows how to fix it.

Everything compiled fine except for lines containing va_arg().
When I look at the source:

1375      for (i = 0; i < nargs; i++)
1376        (void) va_arg (vargs, Lisp_Object);
1377      va_end (vargs);

the error message:

    .../xemacs-19.12/src/fns.c: In function `run_hook_with_args':
    .../xemacs-19.12/src/fns.c:1376: parse error before `Lisp_Object'
    .../xemacs-19.12/src/fns.c:1376: parse error before `)'

and at the output of the pre-processor:

        (void) ((  Lisp_Object  *)( vargs  = (char *) \
               ( (__builtin_alignof(  Lisp_Object ) == 8) ? \
                 (((long) vargs  + (long)sizeof(  Lisp_Object ) \
                    + 8 - 1) & -8 ) : (((long) vargs  + \
                 (((long)sizeof(  Lisp_Object ) > 4)? \
                 sizeof(  Lisp_Object ):4) + 4 - 1) & \
                 (unsigned long) -4) ) )) [-1] ;

it makes me think that __builtin_alignof() is somehow confusing the
compiler. Perhaps my gcc is no good.

Thanks,
Jeff Finger
Adobe Systems

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