Fix for PR libgcj/7570 and PR libgcj/7578:

Fix for PR libgcj/7570 and PR libgcj/7578:

2002-08-13  Jesse Rosenstock  <jmr@ugcs.caltech.edu>

	Fix for PR libgcj/7570 and PR libgcj/7578:
	* java/lang/natPosixProcess.cc: Include java/io/File.h.
	(startProcess): Handle new `dir' argument.
	* java/lang/Win32Process.java (ConcreteProcess): Added `dir'
	argument.
	* java/lang/PosixProcess.java (ConcreteProcess): Added `dir'
	argument.
	(startProcess): Likewise.
	* java/lang/EcosProcess.java (ConcreteProcess): Added `dir'
	argument.
	* java/lang/Runtime.java (execInternal): Added `dir' argument.
	(exec): Don't create new environment if ENV==null.  Pass DIR to
	execInternal.
	* java/lang/natRuntime.cc: Include java/io/File.h.
	(execInternal): Added `dir' argument.

From-SVN: r56268