re PR ada/35143 (Serious regression on ACATS results since 4.2.3)

re PR ada/35143 (Serious regression on ACATS results since 4.2.3)

2008-02-11  Joel Sherrill <joel.sherrill@oarcorp.com>

	PR ada/35143
	* env.c: Add __rtems__ to if defined.
	* s-osinte-rtems.adb: Add To_Target_Priority.  Fix formatting.
	* s-osinte-rtems.ads: Add To_Target_Priority prototype and
	PTHREAD_SCOPE_PROCESS/PTHREAD_SCOPE_SYSTEM constants.  Add
	pragma Convention as required.
	* gsocket.h: Make compile in and out of RTS.
	* Makefile.in: Add system-rtems.ads.  Build DEC extensions.
	Use g-soccon-rtems.ads.
	* g-soccon-rtems.ads, system-rtems.ads: New files.

From-SVN: r132294