Donn Terry <[EMAIL PROTECTED]> writes:
> The current code to detect if mmap() is present and operational is
> excessively draconian, in my opinion.
The GNU coding standards has a section about how to use mmap.
Following these guidelines always works for me. For short: use
AC_CHECK_FUNCS([mmap]) instead of AC_FUNC_MMAP. Then write, for
example,
void *p;
#if HAVE_MMAP && defined (PROT_*) && defined (MAP_*)
p = mmap (NULL, n, PROT_*, MAP_*, fd, 0);
if (p != NULL)
return p;
#endif
/* mmap() doesn't work, use malloc(). */
p = malloc (n);
if (p != NULL && read (fd, p, n) != n)
{
free (p);
p = NULL;
}
return p;
--
Ralph
