Native and cross files now support string and list concatenation using the + operator, and joining paths using the / operator. Entries defined in the [constants] section can be used in any other section. An entry defined in any other section can be used only within that same section and only after it has been defined.
[constants] toolchain = '/toolchain' common_flags = ['--sysroot=' + toolchain + '/sysroot'] [properties] c_args = common_flags + ['-DSOMETHING'] cpp_args = c_args + ['-DSOMETHING_ELSE'] [binaries] c = toolchain + '/gcc'