5rosinte.ads: Add SIGXCPU.

5rosinte.ads: Add SIGXCPU.

2003-01-29	Joel Sherrill <joel@OARcorp.com>

	* 5rosinte.ads: Add SIGXCPU.
	* 5rtpopsp.adb: New file.
	* Make-lang.in: Do not build gnatpsta and gnatpsys when cross.
	* Makefile.in: Recognize more RTEMS targets and add the RTEMS
	specific file 5rtpopsp.adb.
	* adaint.h: Add include of <stdio.h> when target is RTEMS.  This
	is likely needed for all newlib targets.
	* init.c: Add RTEMS specific version of __gnat_initialize().

From-SVN: r62098