Hello,

> However, I see that cross-compilation with compiler support does not 
> currently work. I'm wondering what the core technical blockers are 
> behind that and how much work it might be to get it working.

Basically, instead of 2 compilers now (system and opencl kernel
compiler) you would have to deal with 3 compilers. E.g. if you want to
compile for ARM on x86-64, you'll need:

1) arm-whatever-gcc
2) llvm x86-64 (for compiling pocl's kernel library code on x86-64)
3) llvm arm

The new compiler (3) is required because pocl has some code that links 
against LLVM, and you need to link it to target arch LLVM. It's not
impossible to get done, just quite a bit of work. I've originally
started cross-compilation work with this goal, but dropped it since
non-LLVM builds were sufficient for us. Plus you'll need all the
libraries (hwloc etc) for target, and pkg-config must recognize them and
their versions.

Cheers,
-- mb

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