[En-Nut-Discussion] Viral licenses, no trunk build

[Ole Reinhardt]

Hi Harald,

> after restoring the Luminary license, which had been unintentionally
> removed by the contributor, I checked a large number of dependencies.
> It turned out that due to code inclusion, essential part of Nut/OS
> require non-permissive licenses.

Oh, I did not know that these files include Luminary code parts. This
indeed is a real problem and we should find a solution ASAP.

Btw: Are you sure about: nut/arch/cm3/dev/atmel/sam3u_clk.c

For me this looks like pure Atmel code? Or was this ported from the
luminary library?

>Actually it should be no big deal to solve this. I'm just not sure,
> what would be the best way to continue.

To prevent all architectures except CM3 to be infected by this license I
would vote to first replace the affected files:

   M /trunk/nut/arch/cm3/cmsis/cortex_interrupt.c
   M /trunk/nut/arch/cm3/cmsis/cortex_interrupt1.c
   M /trunk/nut/arch/cm3/cmsis/cortex_sysctl.c
   M /trunk/nut/arch/cm3/cmsis/cortex_systick.c
   M /trunk/nut/arch/cm3/dev/atmel/sam3u_clk.c
   M /trunk/nut/include/arch/cm3/cortex_clk.h
   M /trunk/nut/include/arch/cm3/cortex_sysctl.h
   M /trunk/nut/include/arch/cm3/cortex_systick.h


by a clean-room implementation or at least a version of a different
source with acceptable license. In fact there is not much active code in
these files anyway.

Are there more files I missed?

Unfortunately I'm currectly a quite full of work but will do my best to
solve this problem ASAP as we need this as well on our project.

Bye,

Ole

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