Just to add a bit more to this I think the issue is that conda-forge is not using Xcode to compile but and external LLVM/Clang toolkit. When this is used ITK will generate the following code from a macro:
# if ITK_COMPILER_IS_Clang
# include "compilers/ITK_COMPILER_INFO_Clang_CXX.h"
# else
# error Unsupported compiler
# endif
but then we come along and are trying to compile with Xcode and we error out. If we actually had compiled ITK with Xcode then the following code is produced:
# if ITK_COMPILER_IS_AppleClang
# include "compilers/ITK_COMPILER_INFO_AppleClang_CXX.h"
# else
# error Unsupported compiler
# endif
We can’t even just forcibly define ITK_COMPILER_IS_Clang because that gets wiped out at the top of the itk_compiler_detection.h file. So thoughts on this? Should I file some sort of a bug? Can I compile the anaconda package version of ITK myself and install it into my conda environment so I can get the proper defines?
Thanks