#7 Fix Makefile to support DESTDIR variable

[Ferdinand T.]

I have created a patch to use DESTDIR on make (needed for packaging this for Linux distributions).
See Attachment

[Fulvio]

Thanks, committed:
https://sourceforge.net/p/scid/code/ci/fac2a0fd42876c4c0ce387218d2c99c9b9747d72/