tslib: needs kernel headers 3.12

Kernel headers 3.12+ are required since tslib version 1.3.

https://github.com/kergoth/tslib/blob/master/README.markdown

Update tslib reverse dependencies.

Fixes:
http://autobuild.buildroot.net/results/28d/28df38e2a042f1b5940bf35c18334ebf8810a348/
http://autobuild.buildroot.net/results/c38/c383cfee3673aa9fba36a86f1e68de63413c2987/
http://autobuild.buildroot.net/results/6dd/6ddb2cd9f4f41ee03dc10a73422ad37070811732/

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---
 package/directfb/Config.in                       | 5 +++--
 package/qt/Config.mouse.in                       | 5 +++--
 package/qt5/qt5base/Config.in                    | 5 +++--
 package/tslib/Config.in                          | 5 +++--
 package/x11r7/xdriver_xf86-input-tslib/Config.in | 5 +++--
 5 files changed, 15 insertions(+), 10 deletions(-)

>>>>> "Baruch" == Baruch Siach <baruch@tkos.co.il> writes:

 > Kernel headers 3.12+ are required since tslib version 1.3.
 > https://github.com/kergoth/tslib/blob/master/README.markdown

 > Update tslib reverse dependencies.

 > Fixes:
 > http://autobuild.buildroot.net/results/28d/28df38e2a042f1b5940bf35c18334ebf8810a348/
 > http://autobuild.buildroot.net/results/c38/c383cfee3673aa9fba36a86f1e68de63413c2987/
 > http://autobuild.buildroot.net/results/6dd/6ddb2cd9f4f41ee03dc10a73422ad37070811732/

 > Signed-off-by: Baruch Siach <baruch@tkos.co.il>

Committed, thanks.

Hello,

On Thu, 19 Jan 2017 14:50:47 +0200, Baruch Siach wrote:
> Kernel headers 3.12+ are required since tslib version 1.3.
> 
> https://github.com/kergoth/tslib/blob/master/README.markdown
> 
> Update tslib reverse dependencies.
> 
> Fixes:
> http://autobuild.buildroot.net/results/28d/28df38e2a042f1b5940bf35c18334ebf8810a348/
> http://autobuild.buildroot.net/results/c38/c383cfee3673aa9fba36a86f1e68de63413c2987/
> http://autobuild.buildroot.net/results/6dd/6ddb2cd9f4f41ee03dc10a73422ad37070811732/
> 
> Signed-off-by: Baruch Siach <baruch@tkos.co.il>

Isn't this a bit annoying for people using tslib on kernel olders than
3.12 ? Isn't there a simpler patch to tslib to avoid depending on
headers >= 3.12 ?

Thanks,

Thomas

Hi Thomas,

On Fri, Jan 20, 2017 at 11:26:30AM +1100, Thomas Petazzoni wrote:
> On Thu, 19 Jan 2017 14:50:47 +0200, Baruch Siach wrote:
> > Kernel headers 3.12+ are required since tslib version 1.3.
> > 
> > https://github.com/kergoth/tslib/blob/master/README.markdown
> > 
> > Update tslib reverse dependencies.
> > 
> > Fixes:
> > http://autobuild.buildroot.net/results/28d/28df38e2a042f1b5940bf35c18334ebf8810a348/
> > http://autobuild.buildroot.net/results/c38/c383cfee3673aa9fba36a86f1e68de63413c2987/
> > http://autobuild.buildroot.net/results/6dd/6ddb2cd9f4f41ee03dc10a73422ad37070811732/
> > 
> > Signed-off-by: Baruch Siach <baruch@tkos.co.il>
> 
> Isn't this a bit annoying for people using tslib on kernel olders than
> 3.12 ? Isn't there a simpler patch to tslib to avoid depending on
> headers >= 3.12 ?

The present build failure seems to be easy to fix by skipping the ts_uinput 
tool on pre 3.12 kernels. But since upstream explicitly states that 3.12 is 
the oldest supported kernel (see commit message link) we are on our own here.

baruch

>>>>> "Baruch" == Baruch Siach <baruch@tkos.co.il> writes:

Hi,

 >> Isn't this a bit annoying for people using tslib on kernel olders than
 >> 3.12 ? Isn't there a simpler patch to tslib to avoid depending on
 >> headers >= 3.12 ?

 > The present build failure seems to be easy to fix by skipping the ts_uinput 
 > tool on pre 3.12 kernels. But since upstream explicitly states that 3.12 is 
 > the oldest supported kernel (see commit message link) we are on our own here.

I had the same idea originally, but as it isn't completely nontrivial to
disable the new code and against the wishes of upstream I decided to
leave that work for people needing it on pre-3.12 kernels.

With that said, if upstream isn't interested in integrating such a patch
then it isn't really nice having to carry it in Buildroot either.

On 2017-01-20 14:46, Peter Korsgaard wrote:
>>>>>> "Baruch" == Baruch Siach <baruch@tkos.co.il> writes:
> 
> Hi,
> 
>  >> Isn't this a bit annoying for people using tslib on kernel olders than
>  >> 3.12 ? Isn't there a simpler patch to tslib to avoid depending on
>  >> headers >= 3.12 ?
> 
>  > The present build failure seems to be easy to fix by skipping the ts_uinput 
>  > tool on pre 3.12 kernels. But since upstream explicitly states that 3.12 is 
>  > the oldest supported kernel (see commit message link) we are on our own here.
> 
> I had the same idea originally, but as it isn't completely nontrivial to
> disable the new code and against the wishes of upstream I decided to
> leave that work for people needing it on pre-3.12 kernels.
> 
> With that said, if upstream isn't interested in integrating such a patch
> then it isn't really nice having to carry it in Buildroot either.
> 

I (as the upstream maintainer) would happily take a patch that brings
back support for old kernels. plugins/input-raw and tools/ts_uinput
should be affected as they use multitouch.

Simply properly disabling them during configure would be an acceptable
first step to have as a requirement for old kernels.

A github pull request or a patch here would be equally fine with me and
I'd be happy to have it in version 1.4.