Here is a list of all variables with links to the files they belong to:

- info_arch : CMakeCCompilerId.c, CMakeCXXCompilerId.cpp
- info_compiler : CMakeCCompilerId.c, CMakeCXXCompilerId.cpp
- info_language_extensions_default : CMakeCCompilerId.c, CMakeCXXCompilerId.cpp
- info_language_standard_default : CMakeCCompilerId.c, CMakeCXXCompilerId.cpp
- info_platform : CMakeCCompilerId.c, CMakeCXXCompilerId.cpp