[Buildroot] [PATCH v2] linux-tool-perf: permit TUI build

[Thomas Petazzoni <thomas.petazzoni@bootlin.com>]

Hello John,

On Mon, 2 Apr 2018 15:02:49 +0100, John Keeping wrote:
> Since Linux 3.10, perf's NO_NEWT configuration option simply sets
> NO_SLANG=1 and there is no dependency on libnewt.
> 
> We already handle NO_SLANG correctly based on whether or not
> BR2_PACKAGE_SLANG is selected, so all we accomplish by setting NO_NEWT=1
> is disabling perf's TUI when all of the dependencies are available.
> 
> To simplify all of this, introduce a new config option to enable the
> perf TUI which depends on slang and add a check to prevent building the
> TUI on versions which are too old.  The check for NO_SLANG is equivalent
> to checking if NO_NEWT is required as NO_SLANG was added in the same
> commit that removed the libnewt dependency and deprecated NO_NEWT
> (6692c262df4f, "perf tools: Remove dependency on libnewt", 2013-03-28).
> 
> Signed-off-by: John Keeping <john@metanate.com>
> ---
> On Mon, 2 Apr 2018 15:07:16 +0200, Yann E. MORIN wrote:

Applied to master after adding the BR2_USE_MMU, as pointed out by Yann,
and after tweaking a bit the commit title. Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com