[Buildroot] Problem compiling local code

Ryan Wilkins ryan at deadfrog.net
Mon Jul 22 20:38:39 UTC 2013

On Jul 22, 2013, at 4:14 PM, Ryan Wilkins <ryan at deadfrog.net> wrote:

> On Jul 19, 2013, at 1:29 AM, Thomas De Schampheleire <patrickdepinguin+buildroot at gmail.com> wrote:
>> Hi Ryan,
>> Is there any output regarding the hello package, like 'downloading',
>> 'extracting', 'building', etc. or nothing at all?
>> What is the name of the config option that you added, and are you sure
>> it's enabled in .config?
>> What happens if you explicitly run 'make hello' ?
>> Depending on what you did before, you may also need to clear previous
>> attempts from the output, for example with:
>> make hello-dirclean
>> If the hello package is seen correctly by buildroot, but the
>> compilation doesn't work correctly, you may want to add
>> KBUILD_VERBOSE=1 to the make command, to see the actual make command
>> executed.
>> Best regards,
>> Thomas
> Thomas,
> Thanks for the response.  After some digging around, I found that buildroot wasn't even trying to grab or compile my code.  What I discovered earlier today is that the variable names that I was using contained too many underscores.  My Config.in and hello.mk files were using variables set as BR2_PACKAGE_COMPANY_PROJECT_HELLO.  When I shortened it to just BR2_PACKAGE_HELLO then it started working properly.  Apparently the additional underscores confused some parsing of the buildroot and/or Kbuild system.  If that was mentioned in the documentation then I missed it.  Maybe it was assumed.  In any case, it's working now.
> Thanks for your help on this.  I appreciate it.

And I put the wrong variable names down in this email.  Was going from memory while my wife was driving the car. 


hello.mk had COMPANY_PROJECT_HELLO_ variable names prefix which changed to HELLO_.

That solved the issues.

Ryan Wilkins

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