[Rd] R-Project build system: DESTDIR support

[Claudio Fontana]

Hello,

I am writing you about the GNU R-Project,
as part of by effort to help GNU projects provide a better, more
consistent build system.

Currently, your project does not support the DESTDIR variable in
generated Makefiles (marked as optional in the GNU coding policies, make and
automake manual).

In my opinion, DESTDIR support can be very helpful for the user, the
distribution-specific packagers and third-party programs, because it
offers a consistent and portable way to perform staged installations.

In each case, please contact me at this address <claudio at gnu.org>
to provide your feedback about this issue _in any case_, should you
want to support DESTDIR or not.

I am ready to offer you information, help and support.

Thank you for your help in making GNU projects build systems better.

Claudio Fontana