re PR ada/81070 (build failure for s-intrr.adb)

	PR ada/81070
	* s-interr-hwint.adb: Reinstate.
	* gcc-interface/Makefile.in (RTEMS): Use it again.

From-SVN: r249115

gcc/ada/ChangeLog

+2017-06-12  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR ada/81070
+	* s-interr-hwint.adb: Reinstate.
+	* gcc-interface/Makefile.in (RTEMS): Use it again.
+
 2017-06-08  Olivier Hainque  <hainque@adacore.com>
 
 	* vx_crtbegin_auto.c: Update year in copyright notice.

gcc/ada/gcc-interface/Makefile.in

@@ -1747,7 +1747,7 @@ ifeq ($(strip $(filter-out rtems%,$(target_os))),)
   s-taspri.ads<s-taspri-posix.ads \
   s-tpopsp.adb<s-tpopsp-tls.adb \
   s-stchop.adb<s-stchop-rtems.adb \
-  s-interr.adb<s-interr-vxworks.adb
+  s-interr.adb<s-interr-hwint.adb
 endif
 
 # PikeOS