[cmake-developers] [CMake] Cmake Frameworks and Bitcode

[Brad King]

On 03/12/2018 10:36 AM, Cameron Palmer wrote:
> So after a bit of hacking it seems that Cmake should provide something like:
> 
> CMAKE_OSX_BITCODE_ENABLE

For reference, this refers to a previous post:

    Bitcode and CMake
    https://cmake.org/pipermail/cmake/2018-March/067191.html

with the goal of using `-fembed-bitcode` while avoiding a warning:

    ld: warning: -headerpad_max_install_names is ignored when used with -bitcode_bundle (Xcode setting ENABLE_BITCODE=YES)

> Which would pass -fembed-bitcode to the compiler and linker and remove
> the option in Darwin.cmake for -Wl,-headerpad_max_install_names in
> CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS.

One may avoid the `-headerpad_max_install_names` option with this:

    https://cmake.org/cmake/help/v3.11/variable/CMAKE_BUILD_WITH_INSTALL_RPATH.html

There is no reason to build with any rpath set for the build tree
when one cannot run the binaries on the macOS host anyway.

-Brad