Building example requires Makefile editing

[XFer012]

Hello, very nice library, thank you!

In the README, precisely here https://github.com/mertyGit/SIL#examples-1 , you write:
"use 'make gdi' for windows+gdi"

Actually this leads to

> make gdi
make: *** No rule to make target 'gdi'.  Stop.

Opening the Makefile, you actually set the target in DEST:
DEST=winsdl

The variable is not overwritten by command line.
So in order to actually build for Windows GDI, one has to edit the Makefile and set DEST to the desired target.

Maybe you could update the README or the Makefile?
Thanks