The CMake code in interfaces/CMakeLists.txt also showed that it is possible to create a library from source files in different languages. CMake is evidently able to do the following:
- Discern which compiler to use to get object files from the listed source files.
- Select the linker appropriately to build a library (or executable) from these object files.
How does CMake determine which compiler to use? Specifying the LANGUAGES option to the project command will let CMake check for working compilers for the given languages on your system. When a target is added with lists of source files, CMake will appropriately determine the compiler based on the file extension. Hence, files terminating with .c will be compiled to object files ...
