[Scons-users] Scons Implicity Dependency not found issue

[Bill Deegan]

Is `build/configs/pangu/usw/firmware/arch/pangu/include/io.h' the correct
path to io.h?
Are you using duplicate=0, or not specifying in you SConscript()?
Are you using chdir somewhere in your SCons logic?

Also, please paste the compile line for the compile which should find io.h
when it's passing?

On Tue, Oct 16, 2018 at 11:14 AM Hua Yanghao <huayanghao at gmail.com> wrote:

> no it is static file.
>
> On Tue 16. Oct 2018 at 17:08, Bill Deegan <bill at baddogconsulting.com>
> wrote:
>
>> Is io.h a generated file?
>> Paste the compile line for the compile which should find io.h when it's
>> passing?
>>
>>
>> On Tue, Oct 16, 2018 at 8:54 AM Hua Yanghao <huayanghao at gmail.com> wrote:
>>
>>> Hi Bill,
>>> Yes io.h is on my CPPPATH. And I am using variant_dir="build" for
>>> SConscript files. So normally all used header files will end up in the
>>> build folder too. But occasionally scons seems missed it. I am
>>> struggling to reproduce it ...
>>>
>>> BR, Yanghao
>>> On Tue, Oct 16, 2018 at 2:51 PM Bill Deegan <bill at baddogconsulting.com>
>>> wrote:
>>> >
>>> > Yes. Headers are scanned recursively.
>>> > Implicit cache should only be enable by command line flag or
>>> SetOption()
>>> >
>>> > Where is io.h located? is it in your CPPPATH?
>>> >
>>> > On Tue, Oct 16, 2018 at 6:43 AM Hua Yanghao <huayanghao at gmail.com>
>>> wrote:
>>> >>
>>> >> By the way, is scons scanner scans C file headers recursively? Thanks.
>>> >> On Tue, Oct 16, 2018 at 12:40 PM Hua Yanghao <huayanghao at gmail.com>
>>> wrote:
>>> >> >
>>> >> > scons: *** [build/configs/pangu/usw/firmware/arch/pangu/test.os]
>>> >> > Implicit dependency
>>> >> > `build/configs/pangu/usw/firmware/arch/pangu/include/io.h' not
>>> found,
>>> >> > needed by target
>>> `build/configs/pangu/usw/firmware/arch/pangu/test.os'
>>> >> >
>>> >> > I recently run into this odd problem, and it is very difficult to
>>> >> > reproduce. I did not explicitly enable the "implicit_cache" option
>>> >> > anywhere in my code. If I simply remove the build folder and then
>>> >> > re-build everything works as normal. the problem happens when there
>>> is
>>> >> > a old build, and then I pulled in some new code where this "test.c"
>>> >> > has included an additional header io.h and scons seems not
>>> re-scanning
>>> >> > the file by default.
>>> >> >
>>> >> > I am using scons 3.0.1, is the implict_cache by default enabled
>>> there
>>> >> > and I have to disable it manually?
>>> >> >
>>> >> > Thanks,
>>> >> > Yanghao Hua
>>> >> _______________________________________________
>>> >> Scons-users mailing list
>>> >> Scons-users at scons.org
>>> >> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>> >
>>> > _______________________________________________
>>> > Scons-users mailing list
>>> > Scons-users at scons.org
>>> > https://pairlist4.pair.net/mailman/listinfo/scons-users
>>> _______________________________________________
>>> Scons-users mailing list
>>> Scons-users at scons.org
>>> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>>
>> _______________________________________________
>> Scons-users mailing list
>> Scons-users at scons.org
>> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>
> _______________________________________________
> Scons-users mailing list
> Scons-users at scons.org
> https://pairlist4.pair.net/mailman/listinfo/scons-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist4.pair.net/pipermail/scons-users/attachments/20181016/3221c303/attachment.html>