🚀 go-pugleaf

HP9000/720 HPUX 8.07 gcc 2.2.2 (configured for hppa1.1-hp-hpux)

This is really HP's fault, I would guess.

The GNU C compiler defines its own version of stdarg/varargs data
structures, defining the type va_list as a structure of pointers,
thusly:

typedef struct
{
  char *__va_stack_start;	/* Real start of stack args. */
  char *__va_int;		/* Pointer to the general register */
				/* args and stack. */
  char *__va_float;		/* Pointer to the fp register args.  */
  char *__va_double;
} va_list;


In the HPUX headers, the v?printf's are declared to take the type
__va_list which is typedef'ed as a pointer to double.  So any calls to
v?printf either cause a compile error or fail badly at runtime.

I have experimentally determined that one should pass the __va_int
member to v?printf, (cast as a (double *) or (__va_list) to suppress a
warning, if desired).

This perhaps could be fixed by including a set of macros such as

  #define vprintf(a,b) vprintf(a,(__va_list)(b).__va_int)

to the gnu include files.  Except that would interfere with the
declaration of vprintf in stdio.h.

A better fix would be to write vprintf et.al., using _doprnt, which
HP's libc apparently contains, to do the work.

--
Steve Preston (scp2@gte.com)