29 Nov
2012
29 Nov
'12
6:47 p.m.
Charles Davis <cdavis5x(a)gmail.com> writes:
From: Charles Davis <cdavis(a)mymail.mines.edu>
Autoconf checks for a field of a struct by using it in an if()
expression. Of course, you can't do this for an aggregate field, so you
must instead check a field of that aggregate instead. Up until now, the
conftests for the st_?tim fields were all failing, even on systems that
had them, because of this.
It does a sizeof, which should work just fine. On what system do you see
a problem?
--
Alexandre Julliard
julliard(a)winehq.org
29 Nov
29 Nov
9:22 p.m.
New subject: [PATCH] ntdll: Fix existing conftests for nanosecond precision time fields.
On Nov 29, 2012, at 11:47 AM, Alexandre Julliard wrote:
Charles Davis <cdavis5x(a)gmail.com> writes:
No it doesn't. This is the
conftest.c template that it uses (ac_fn_c_check_member() function, at line 2036 in
configure):
<contents of confdefs.h>
/* end confdefs.h. */
$5
int
main ()
{
static $2 ac_aggr;
if (ac_aggr.$3)
return 0;
;
return 0;
}
I see no sizeof in there.
Chip
From: Charles Davis
<cdavis(a)mymail.mines.edu>
Autoconf checks for a field of a struct by using it in an if()
expression. Of course, you can't do this for an aggregate field, so you
must instead check a field of that aggregate instead. Up until now, the
conftests for the st_?tim fields were all failing, even on systems that
had them, because of this.
It does a sizeof, which should work just fine.
9:33 p.m.
New subject: [PATCH] ntdll: Fix existing conftests for nanosecond precision time fields.
On Nov 29, 2012, at 2:22 PM, Charles Davis wrote:
On Nov 29, 2012, at 11:47 AM, Alexandre Julliard wrote:
Oh wait... there's the second conftest later on in that function, that does
use sizeof. Sorry for the noise. (But I have to wonder why they don't just have one
test using sizeof... Autoconf is just one, big horrible hack.)
Chip
Charles Davis <cdavis5x(a)gmail.com> writes:
No it doesn't. This is the
conftest.c template that it uses (ac_fn_c_check_member() function, at line 2036 in
configure):
<contents of confdefs.h>
/* end confdefs.h. */
$5
int
main ()
{
static $2 ac_aggr;
if (ac_aggr.$3)
return 0;
;
return 0;
}
I see no sizeof in there.
From: Charles Davis
<cdavis(a)mymail.mines.edu>
Autoconf checks for a field of a struct by using it in an if()
expression. Of course, you can't do this for an aggregate field, so you
must instead check a field of that aggregate instead. Up until now, the
conftests for the st_?tim fields were all failing, even on systems that
had them, because of this.
It does a sizeof, which should work just fine.
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Charles Davis