pr47917.c: Add -D_XOPEN_SOURCE=500 to dg-options for mips-sgi-irix6.5.

	* gcc.dg/torture/pr47917.c: Add -D_XOPEN_SOURCE=500 to dg-options
	for mips-sgi-irix6.5.
	Replace snprintf prototype by <stdio.h>.

From-SVN: r171456

gcc/testsuite/ChangeLog

 2011-03-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
+	* gcc.dg/torture/pr47917.c: Add -D_XOPEN_SOURCE=500 to dg-options
+	for mips-sgi-irix6.5.
+	Replace snprintf prototype by <stdio.h>.
+
+2011-03-25  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
 	PR testsuite/48283
 	* gcc.dg/graphite/block-3.c: Add dg-require-effective-target
 	run_expensive_tests.

gcc/testsuite/gcc.dg/torture/pr47917.c

 /* { dg-do run } */
 /* { dg-options "-std=c99" } */
+/* { dg-options "-std=c99 -D_XOPEN_SOURCE=500" { target mips-sgi-irix6.5 } } */
 /* { dg-xfail-if "no C99 snprintf function" { *-*-hpux10* } } */
 /* { dg-xfail-run-if "non-conforming C99 snprintf" { *-*-hpux11.[012]* } } */
 
 /* PR middle-end/47917 */
 
-extern int snprintf (char *, __SIZE_TYPE__, const char *, ...);
+#include <stdio.h>
 extern int memcmp (const void *, const void *, __SIZE_TYPE__);
 extern void abort (void);