svn commit: r290433 - in head: share/mk sys/conf tools/build/options

[Bryan Drewery]

On 11/9/2015 1:04 PM, Bryan Drewery wrote:
> On 11/9/2015 9:08 AM, Bryan Drewery wrote:
>> On 11/7/2015 12:41 AM, Craig Rodrigues wrote:
>>>
>>>
>>> On Thu, Nov 5, 2015 at 8:45 PM, Bryan Drewery <bdrewery at freebsd.org
>>> <mailto:bdrewery at freebsd.org>> wrote:
>>>
>>>     Author: bdrewery
>>>     Date: Fri Nov  6 04:45:29 2015
>>>     New Revision: 290433
>>>     URL: https://svnweb.freebsd.org/changeset/base/290433
>>>
>>>     Log:
>>>       Add a FAST_DEPEND option, off by default, which speeds up the
>>>     build significantly.
>>>
>>>       Enabling this by default, for src or out-of-src, can be done once
>>>     more testing
>>>       has been done, such as a ports exp-run, and with more compilers.
>>>
>>>
>>> I put WITH_FAST_DEPEND="yes" in make.conf for these builds:
>>>
>>> https://jenkins.freebsd.org/job/FreeBSD_HEAD
>>> https://jenkins.freebsd.org/job/FreeBSD_HEAD_amd64_gcc4.9
>>> https://jenkins.freebsd.org/job/FreeBSD_HEAD_sparc64
>>>
>>>
>>> For the FreeBSD_HEAD_sparc64 build, there is a weird failure on bootstrap:
>>>
>>> https://jenkins.freebsd.org/job/FreeBSD_HEAD_sparc64/1311/console
>>>
>>> If you put these entries in make.conf:
>>>
>>> TARGET=sparc64
>>> WITH_FAST_DEPEND=yes
>>>
>>> and do:
>>>
>>> make -j 4 buildworld __MAKE_CONF=make.conf
>>>
>>> That seems to trigger it.
>>>
>>> Can you take a look?
>>>
>>
>> I'm finally getting to testing this. My initial guess is that
>> WITH_FAST_DEPEND is simply exposing an existing race. The entire
>> gnu/usr.bin/cc directory is full of races and duplication with
>> generating the headers. Something that has been a problem in META_MODE.
>> So either way I will fix it.
>>
>>
> 
> I have figured this out and will have a fix in soon. It's a subtle
> problem with having multiple files match expected objects based on
> suffix transformation rules, that mkdep was avoiding.
> 

r290629 fixes the GCC build with WITH_FAST_DEPEND.

-- 
Regards,
Bryan Drewery

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