More speed increases for make-ing ports

[Kris Kennaway]

On Tue, May 22, 2007 at 01:47:23AM -0500, Stephen Montgomery-Smith wrote:
> This small modification cuts off about 25% off pkg_version on my system.
> 
> Basically bsd.gnome.mk recursively finds all the dependencies, but many 
> of them are listed many times.  This makes make work extra hard when it 
> doesn't have to.  I simply weed out the repeated entries.
> 

> --- bsd.gnome.mk-orig	Tue May 22 01:29:08 2007
> +++ bsd.gnome.mk	Tue May 22 01:29:22 2007
> @@ -655,6 +655,8 @@
>  _USE_GNOME+=	${${component}_USE_GNOME_IMPL} ${component}
>  . endfor
>  
> +_USE_GNOME!=(for i in ${_USE_GNOME}; do ${ECHO_CMD} $$i; done) | sort -u
> +
>  # Setup the GTK+ API version for pixbuf loaders, input method modules,
>  # and theme engines.
>  PLIST_SUB+=			GTK2_VERSION="${GTK2_VERSION}"

Be careful, != assignments may add thousands of process invocations to
large targets like 'make index' and can slow it down dramatically.

Kris