[RFC] RTEMS Waf Clang support

[Sebastian Huber]

On 16/03/2020 13:51, Hesham Almatary wrote:
> Thanks Sebastian!
>
> I tried to follow your instructions for adding this as a new option, 
> but unfortunately, XLEN didn't evaluate for 
> RTEMS-BUILD-CPUKIT-OPTCLANG to use. Here's the diff:
>
>     diff --git a/spec/build/cpukit/RTEMS-BUILD-CPUKIT-OPTXLEN.yml
>     b/spec/build/cpukit/RTEMS-BUILD-CPUKIT-OPTXLEN.yml
>     new file mode 100644
>     index 0000000000..840a8ecc2c
>     --- /dev/null
>     +++ b/spec/build/cpukit/RTEMS-BUILD-CPUKIT-OPTXLEN.yml
>     @@ -0,0 +1,19 @@
>     +active: true
>     +build-type: option
>     +default: ''
>     +default-by-variant:
>     +- value: '64'
>     +  variants:
>     +  - riscv/rv64.*
>     +derived: false
>     +enabled-by: []
>     +header: ''
>     +level: '1.110'
>     +links: []
>     +name: XLEN
>     +normative: true
>     +order: -1000
>     +ref: ''
>     +reviewed: ChapNb5NSPl062d5CnU251RB5J6TljFz_mLkmFdgwVY=
>     +text: ''
>     +type: build
>
>
> grepping for XLEN only gets me:
>
>     c4che/spec_build.pickle:133389:ssS'RTEMS-BUILD-CPUKIT-OPTXLEN'
>     c4che/spec_build.pickle:133433:S'XLEN'
>     c4che/spec_build.pickle:154984:S'--target=${ARCH}${XLEN}-unknown-rtems${__RTEMS_MAJOR__}'
>
>
> Am I missing something?

Did you link the new item to

spec/build/cpukit/RTEMS-BUILD-CPUKIT-CPUOPTS.yml

?

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