Hello,

This patch is necessary for proper operation of a piece
of the Ada Makefile fragment which tests the value of $(CROSS).

@ substitutions aren't performed for the language specific
Makefile fragments so using @CROSS directly isn't an option
there.

We have been using this for years and multiple targets in our
local trees. Boostrapped & reg-tested on x86_64-linux.

OK to commit ?

Thanks in advance for your feedback,

Olivier

2014-09-01  Olivier Hainque  <hainque@adacore.com>

	* Makefile.in (CROSS): Define, to @CROSS.