Allow CROSS to be set in environment in test subdirs, too.

[Rich Felker]

On Mon, Jul 31, 2006 at 12:54:57PM -0700, Jim Blandy wrote:
> 
> This patch would make things in the test directory behave more like
> the top-level Makefile.
> 
> === test/Rules.mak
> ==================================================================
> --- test/Rules.mak      (revision 146037)
> +++ test/Rules.mak      (local)
> @@ -49,8 +49,12 @@
>  # Most people will set this stuff on the command line, i.e.
>  #        make CROSS=mipsel-linux-
>  # will build uClibc for 'mipsel'.
> +#
> +# You can set CROSS in the environment, too.
> 
> +ifndef CROSS
>  CROSS      = $(subst ",, $(strip $(CROSS_COMPILER_PREFIX)))
> +endif

Command line variables already override ones in the makefile...

Rich