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I asked this question before a few days ago about undefined references errors to custom library functions. By accident I found that the code compiled fine when the board target was set to an Uno, not the Intel Curie 101 that I was indending to use (and what is was set to when the errors appear) Can anyone explain why you would get undefined reference errors that are board specific?

Disclaimer - I haven't got access to the hardware I need to test at the moment so I don't know for certain that the code works on an Uno.

Edit: I have tested the compilation for a few board targets as below

  • Uno - no errors
  • Mega / Mega 2560 - no errors
  • Leonardo - no errors
  • Due - no errors
  • 101 - undefined reference as detailed in linked question

Additionally, moving the libaries into the sketch folder rather then having them in the Arduino libaries folder stops compilation errors. Is there a difference in how the 101 links to included files?

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    why did you create a new question instead of updating the original question with this new information?
    – jsotola
    Commented May 14, 2019 at 17:22
  • I made a new question as in my mind this is a different issue to the previous question. The original post was more asking for code advice as that's what I believed the issue was - where as this is now more about the behaviour of Arduino in general. For someone who has the same problems that I have encountered about baord specific compilation errors then this would be a more helpful question would it not? Commented May 14, 2019 at 17:34
  • if the other question gets deleted, then this one becomes broken .... your question should stand on its own
    – jsotola
    Commented May 14, 2019 at 17:55
  • it is unclear what your question actually is .... the Uno and the Curie use different microcontrollers, therefore the libraries are different
    – jsotola
    Commented May 14, 2019 at 18:01
  • @jsotola: The OP's question is about their own library. Commented May 14, 2019 at 18:25

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