When Cross Compiling for Android with the NDK, this variable may be set to specify the version of the toolchain to be used as the compiler. The variable must be set to one of these forms:

  • <major>.<minor>: GCC of specified version

  • clang<major>.<minor>: Clang of specified version

  • clang: Clang of most recent available version

A toolchain of the requested version will be selected automatically to match the ABI named in the CMAKE_ANDROID_ARCH_ABI variable.

If not specified, the default will be a value that selects the latest available GCC toolchain.