I have a project that builds using the arm-gcc toolchain, but it contains a subfolder (with a different project, related to the main one) that needs to build with gcc.
Of course, if I directly use add_subdirectory nothing works (the error is actually that boost testing can't be found).
I have read some cmake forums and it seems that the recommended option is to use ExternalProject_Add. I have done it and it works.
Still, I would like to avoid using ExternalProject. Is there any way of, in a particular subdirectory, overwrite the current toolchain with a different one, but only affecting that particular subdirectory?
