Re: Scons Implicity Dependency not found issue

it is the correct path and io.h is actually duplicated from
firmware/include/io.h

On Tue 16. Oct 2018 at 17:34, Bill Deegan <[email protected]> wrote:

> 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 <[email protected]> wrote:
>
>> no it is static file.
>>
>> On Tue 16. Oct 2018 at 17:08, Bill Deegan <[email protected]>
>> 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 <[email protected]>
>>> 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 <[email protected]>
>>>> 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 <[email protected]>
>>>> wrote:
>>>> >>
>>>> >> By the way, is scons scanner scans C file headers recursively?
>>>> Thanks.
>>>> >> On Tue, Oct 16, 2018 at 12:40 PM Hua Yanghao <[email protected]>
>>>> 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
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