file io in make

Hello,

    Based on my experience with gmake and the command line limitation, I 
think it would be a good idea to have some kind of file IO facility in 
gmake.

In the simplest form, user could be able to write one variable into a file 
or read the content of a file into a variable. In a more complex 
implementation, facilities such as printf or scanf may be added to it.



What others think about this capability in make?



Best regards