Patch to not fork/exec xkbcomp on X Server initialization

[pcpa at mandriva.com.br]

Quoting Daniel Stone <daniel at fooishbar.org>:

> On Tue, Jul 01, 2008 at 02:05:11PM -0300, Paulo Cesar Pereira de 
> Andrade wrote:
>>  I talked with Peter Hutterer in the weekend about a patch I was working
>> on, to not fork/exec xkbcomp.
>>
>>  I worked on it, because after some profiling, it seems xkb initialization
>> takes around 60% of the time required to start the X Server.  Initially I
>> wrote it as an optional patch for server 1.4 branch, but yesterday I rewrote
>> it almost from scratch, to not be optional and also adapted it to git
>> master.
>
> Hi,
> Yes, I was expecting around 50% or so.  If this is tested and working
> fine for you, I'm perfectly happy for you to recommend this to people
> who need it, but I'm definitely not merging it.  In theory, xkbcomp
> should just be xkbcomp(), which hands us back the XkbDescRec it
> generates while parsing anyway.
>
> I smashed this together last year and it was phenomenally ugly, but then
> I decided to give my laptop (as well as my sunglasses, earphones,
> camera, cash, etc) away to some people who kindly let themselves into
> our house, and I really don't want to be doing it twice.  But it's high
> on my todo list, so let's see what these holidays produce.
>
> FWIW, xkbcomp is getting rewritten at some stage as well.  I'm willing
> to believe that alone will cut a huge swathe of time out: that code is
> worse, both in design and implementation, than anything else in XKB.
>
> Cheers,
> Daniel
>