[GRASS5] 5.7: Makefile updated

[Markus Neteler]

Hi,

I have updated numerous Makefiles in GRASS 5.7 to
replace

 - mkdir      -> $(MKDIR)
 - cp, chmod  -> $(INSTALL)

Both variables are defined in
include/Make/Platform.make[.in]

(For me) it still compiles and works. You will have to run
'configure' to rebuild include/Make/Platform.make from 
include/Make/Platform.make.in.

If needed, please make any necessary changes directly in CVS.

Markus