This patch solves the a cross-build problem where proj.c is both used by a build-tools target and by the actual target.  In a cross-building situation proj.o is both a native object and a cross-object (i.e., for the target arch) and thus doesn't work.  Creating seperate opjects from the same source file solves this...
This patch solves the a cross-build problem where proj.c is both used by a
build-tools target and by the actual target.  In a cross-building situation
proj.o is both a native object and a cross-object (i.e., for the target
arch) and thus doesn't work.  Creating seperate opjects from the same
source file solves this...

This patch may also fix the following issue:

> it looks like -DNOCLEAN doesn't work too well.
> cd /usr/src/gnu/usr.bin/cc/f771; make build-tools
> make: don't know how to make /usr/obj/usr/src/i386/usr/include/stdarg.h. Stop

	This seems caused by wrong dependency information.  Dependency
	information shouldn't be created for build-tools sources.

Submitted by:	marcel

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