Building an LLVM cross-compiler

Project Infrastructure LLVM Dev List Archives
#1

Just a note about this:

I like this. I hope you don't mind if I borrow some of these ideas to
play with. C_COMPILER_WORKS is something I've never heard of.

I'm also working on building a clang-based toolchain from scratch.
To avoid CMake bailing out when a binary can't be linked, I use:

-DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY

Along with:

-DCMAKE_SYSTEM_NAME="Generic"
-DCMAKE_SYSTEM_PROCESSOR="powerpc"

Best Regards,

Vlad

#2

Oh, right, that's the one - I remembered that there was a more proper cmake option to use, but I didn't find it when I sent the previous mail.

Yeah, that option probably is more correct than CMAKE_C_COMPILER_WORKS. We set it already in libunwind/CMakeLists.txt, I guess we should set it in a few more places, at least compiler-rt/lib/builtins/CMakeLists.txt.

// Martin