2015-10-26  Pascal Obry  <obry@adacore.com>

	* s-os_lib.ads, s-os_lib.adb (Kill): New routine. This routine
	makes visible support for killing processes in expect.c.
	* expect.c (__gnat_kill): Removed from here.
	* adaint.c (__gnat_kill): Added here to be usable in the compiler
	(System.OS_Lib).
	* make.adb (Sigint_Intercepted): Use the Kill routine from
	System.OS_Lib.

From-SVN: r229348