Automake supports an
include directive which can be used to
Makefile fragments when
automake is run.
Note that these fragments are read and interpreted by
make. As with conditionals,
make has no idea that
include is in use.
There are two forms of
Note that if a fragment is included inside a conditional, then the condition applies to the entire contents of that fragment.
Makefile fragments included this way are always distributed because
there are needed to rebuild