This target should be implemented by the ``Makefile`` in the project's ``test``
directory. It is invoked by the ``check`` target elsewhere. Each project is
free to define the actions of ``check-local`` as appropriate for that
-project. The LLVM project itself uses dejagnu to run a suite of feature and
-regression tests. Other projects may choose to use dejagnu or any other testing
-mechanism.
+project. The LLVM project itself uses the :doc:`Lit <CommandGuide/lit>` testing
+tool to run a suite of feature and regression tests. Other projects may choose
+to use :program:`lit` or any other testing mechanism.
``clean``
---------
``CFLAGS``
Additional flags to be passed to the 'C' compiler.
+``CPPFLAGS``
+ Additional flags passed to the C/C++ preprocessor.
+
``CXX``
Specifies the path to the C++ compiler.