testsuite: pru: Fix pr64366.c for new -std=gnu23 default

Provide function declaration in order to fix the test case build with
the new -std=gnu23 default.

gcc/testsuite/ChangeLog:

	* gcc.target/pru/pr64366.c (foobar): Provide full function
	delaration.

Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>

diff --git a/gcc/testsuite/gcc.target/pru/pr64366.c b/gcc/testsuite/gcc.target/pru/pr64366.c
index 1608d4694999e3ea1f04c25143c93686741ffa03..8a7f78e338f85424b4a218fe0194ec430e9ee43f 100644 (file)
--- a/gcc/testsuite/gcc.target/pru/pr64366.c
+++ b/gcc/testsuite/gcc.target/pru/pr64366.c
@@ -63,7 +63,7 @@ typedef struct BigStruct{
   int8_t xx;
 }  BigStruct;
 
-extern void foobar();
+extern void foobar(const char *fmt, ...);
 
 void
 test_large_fn (uint8_t ui8_1, int8_t si8_1, uint16_t ui16_1, int16_t si16_1,