[Picolibc] meson and ninja

[Keith Packard]

Larry Doolittle <ldoolitt at recycle.lbl.gov> writes:

> Is there a supported way to force meson to use a non-automatic 
> architecture list?  All I'm really intersted in is
> rv32im/ilp32;@march=rv32im at mabi=ilp32
> rv32imc/ilp32;@march=rv32imc at mabi=ilp32

I've added (to picolibc master), a 'multilib-list' option which lets you
limit the target configurations to a subset of that supported by the
compiler.  With that, you can do:

        $ meson -Dmultilib-list=rv32imac/ilp32,rv32im/ilp32 --cross-file cross-riscv64-unknown-elf.txt build-riscv

(my compiler doesn't support rv32imc currently)

-- 
-keith
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