the proper use of CMAKE_TOOLCHAIN_FILE

[autc04]

the proper use of CMAKE_TOOLCHAIN_FILE

[autc04]

Oh, my bad - documentation comments fixed in 2dec12f.

It should be

cmake .. -DCMAKE_TOOLCHAIN_FILE=path/to/Retro68-build/toolchain/m68k-apple-macos/cmake/retro68.toolchain.cmake

... the other path was outdated. There's nothing there, and apparently cmake does not report that properly as an error and instead only complains about the consequences of not having a toolchain file (it thinks you're building for your linux system and complains that add_application does not exist).

With this corrected path, things should "just work". I don't get policy warnings with cmake 3.11 and the Raytracer sample, but anyway, most cmake policy warnings are absolutely harmless.

It appears that the toolchain build system actually creates two separate copies of the retro68.toolchain.cmake file . They appear to be identical,...

One is in the build directory; ignore it. The things built in the "build-target" directory (except for sample apps) get "installed" into the toolchain directory using a make install command, that's when the different relevant parts are put into the correct directories.
To be exact, add_application.cmake gets copied directly from the source directory, whereas retro68.toolchain.cmake is first created from retro68.toolchain.cmake.in (which lives in the source directory), and then installed (copied) to its final location.

[donbright]

Thanks