Undefined symbols trying to build with nix (mainly OS X)

[spease]

Example:

Undefined symbols for architecture x86_64:
  "_LLVMInitializeAArch64AsmParser", referenced from:
      void std::__1::__call_once_proxy<std::__1::tuple<Halide::Internal::CodeGen_LLVM::initialize_llvm()::$_0&&> >(void*) in libHalide.a(CodeGen_LLVM.cpp.o)

Linux also produces a slew of undefined reference errors, but these seem to be much more generic. I am including llvmPackages.llvm as either a buildInput or propagatedBuildInput (makes no difference).

Thanks.

[steven-johnson]

First guess is that you have an LLVM that was built without AArch64 support. Did you build it from source? If so, specify something like -D LLVM_TARGETS_TO_BUILD="X86;ARM;NVPTX;AArch64;Mips;PowerPC;Hexagon;WebAssembly" when configuring CMake.

[spease]

Nonconclusively, it looks like it’s probably building with all architectures since that’s the LLVM default.

Another thing I’ve noticed is that the official release at least for 8.0.0, comes with a shared and static library. The cmake API seems to make use of both depending on which function is called?. However if I build the library, it only builds one toggleable with a variable.

What should I be doing to build a package for a package system? Like which make target should I be using, or what script should I be following?

[steven-johnson]

The 8.0 release is pretty old at this point -- TBH you'd be better off upgrading to our release 10.

[spease]

This is what ultimately solved the build issues I was having