hintonda added a comment.
In https://reviews.llvm.org/D41623#965271, @compnerd wrote:
> I think that it might be better to handle this as a single global change:
>
> if(CMAKE_FIND_ROOT_PATH)
> set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER)
> endif()
When I cross compile on Darwin and target Linux, I set sysroot and only want
look for headers and libs in the new sysroot, not the host system. However, in
this case, I want to look for the just built headers. This change helps
support this.
As for global settings, this is what I'm setting in my toolchain file:
SET(CMAKE_FIND_ROOT_PATH "${sysroot}" CACHE STRING "" FORCE)
# adjust the default behavior of the FIND_XXX() commands:
# search headers and libraries in the target environment, search
# programs in the host environment
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER CACHE STRING "" FORCE)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY CACHE STRING "" FORCE)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY CACHE STRING "" FORCE)
Repository:
rCXXA libc++abi
https://reviews.llvm.org/D41623
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