[yocto] configure optimization feature update

[Khem Raj]

On Sun, Jun 19, 2011 at 1:02 PM, Esben Haabendal
<eha at dev.doredevelopment.dk> wrote:
> On Wed, 2011-06-15 at 18:28 -0700, Khem Raj wrote:
>> On Wed, Jun 15, 2011 at 5:57 PM, Xu, Dongxiao <dongxiao.xu at intel.com> wrote:
>> > Hi Richard,
>> >
>> > Recently I was doing the "configure optimization" feature and collecting data for it.
>> >
>> > The main logic of this feature is straight forward:
>> >
>> > 1. Use the diff file as autoreconf cache. (I use command: "diff -ruN SOURCE-ORIG SOURCE", here "SOURCE-ORIG" is the source directory before running autoreconf, while "SOURCE" is the directory after running autoreconf).
>> > 2. Add SRC_URI checksum for all patches of the source code.
>> > 3. Tag each autoreconf cache file with ${PN} and the SRC_URI checksum of source code and all patches.
>> > 4. If the currently SRC_URI checksum matches the cached checksum, then we can patch the cache instead of running "autoreconf" stage.
>> >
>>
>> The autoconf'ing is sort of arbitrary at the moment. Depending on what
>> is staged the results may vary.
>
> Which can be properly fixed by using per-recipe (per-workdir) staging.
>

you seem to be stuck in this tight while(1) loop per recipe staging is
not panacea
Do you have some prototypes ? where you can control what staging is presented
and its like beaning coffee when it comes to autoconf options.


> /Esben
>
>