> On 6 Feb 2023, at 06:00, Paul Eggert wrote:
>
> On 2023-02-04 09:26, Russ Allbery wrote:
>> The principle that one should always use an AS_* construct if one exists
>> rather than regular shell constructs could probably be documented more
>> aggressively.
>
> I gave that a shot by installing
* Russ Allbery:
> Florian Weimer writes:
>
>> I want to submit this upstream. Is there are some explanation somewhere
>> why it's not permitted to invoke AC_CHECK_HEADER under shell conditional
>> statement? I couldn't find it in the manual.
>
> It's documented under AS_IF:
>
> https://www.gnu.
On 2023-02-04 09:26, Russ Allbery wrote:
The principle that one should always use an AS_* construct if one exists
rather than regular shell constructs could probably be documented more
aggressively.
I gave that a shot by installing the attached.From 84e4582f534d5e1ded05547c54ca518e31604b1e Mon
On 2023-02-04 05:42, Florian Weimer wrote:
Is there are some explanation somewhere
why it's not permitted to invoke AC_CHECK_HEADER under shell conditional
statement? I couldn't find it in the manual.
The restriction is documented here:
https://www.gnu.org/savannah-checkouts/gnu/autoconf/manu
Florian Weimer writes:
> I want to submit this upstream. Is there are some explanation somewhere
> why it's not permitted to invoke AC_CHECK_HEADER under shell conditional
> statement? I couldn't find it in the manual.
It's documented under AS_IF:
https://www.gnu.org/savannah-checkouts/gnu/au
> On 4 Feb 2023, at 13:42, Florian Weimer wrote:
>
> The x11vnc configure.ac script contains this:
>
> | if test "x$with_v4l" != "xno"; then
> | AC_CHECK_HEADER(linux/videodev.h,
> | [AC_DEFINE(HAVE_LINUX_VIDEODEV_H)],,)
> | fi
>
> This is the point where all the default header check are inse
The x11vnc configure.ac script contains this:
| if test "x$with_v4l" != "xno"; then
| AC_CHECK_HEADER(linux/videodev.h,
| [AC_DEFINE(HAVE_LINUX_VIDEODEV_H)],,)
| fi
This is the point where all the default header check are inserted, so
when the condition is false, they are not
