diff --git a/gcc/testsuite/gcc.target/aarch64/pic-constantpool1.c b/gcc/testsuite/gcc.target/aarch64/pic-constantpool1.c
index 3109d9d..043f1ee 100644
--- a/gcc/testsuite/gcc.target/aarch64/pic-constantpool1.c
+++ b/gcc/testsuite/gcc.target/aarch64/pic-constantpool1.c
@@ -2,10 +2,13 @@
 /* { dg-do compile } */
 
 extern int __finite (double __value) __attribute__ ((__nothrow__)) __attribute__ ((__const__));
+extern int __finitef (float __value) __attribute__ ((__nothrow__)) __attribute__ ((__const__));
+extern int __signbit (double __value) __attribute__ ((__nothrow__)) __attribute__ ((__const__));
+extern int __signbitf (float __value) __attribute__ ((__nothrow__)) __attribute__ ((__const__));
 int
 __ecvt_r (value, ndigit, decpt, sign, buf, len)
      double value;
-     int ndigit, *decpt, *sign;
+     int ndigit, *decpt, *sign, len;
      char *buf;
 {
   if ((sizeof (value) == sizeof (float) ? __finitef (value) : __finite (value)) && value != 0.0)
diff --git a/gcc/testsuite/gcc.target/aarch64/pic-symrefplus.c b/gcc/testsuite/gcc.target/aarch64/pic-symrefplus.c
index f277a52..406568c 100644
--- a/gcc/testsuite/gcc.target/aarch64/pic-symrefplus.c
+++ b/gcc/testsuite/gcc.target/aarch64/pic-symrefplus.c
@@ -34,12 +34,16 @@ struct locale_data
   values [];
 };
 extern const struct locale_data _nl_C_LC_TIME __attribute__ ((visibility ("hidden")));
+extern void *memset (void *s, int c, size_t n);
+extern size_t strlen (const char *s);
+extern int __strncasecmp_l (const char *s1, const char *s2, size_t n, __locale_t locale);
 char *
 __strptime_internal (rp, fmt, tmp, statep , locale)
      const char *rp;
      const char *fmt;
      __locale_t locale;
      void *statep;
+     int tmp;
 {
   struct locale_data *const current = locale->__locales[__LC_TIME];
   const char *rp_backup;
@@ -124,5 +128,9 @@ __strptime_internal (rp, fmt, tmp, statep , locale)
 }
 char *
 __strptime_l (buf, format, tm , locale)
+     int buf;
+     int format;
+     int tm;
+     int locale;
 {
 }
diff --git a/gcc/testsuite/gcc.target/aarch64/reload-valid-spoff.c b/gcc/testsuite/gcc.target/aarch64/reload-valid-spoff.c
index b44e560..c2b5464 100644
--- a/gcc/testsuite/gcc.target/aarch64/reload-valid-spoff.c
+++ b/gcc/testsuite/gcc.target/aarch64/reload-valid-spoff.c
@@ -17,6 +17,11 @@ struct arpreq
 };
 typedef struct _IO_FILE FILE;
 extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream);
+extern void *memset (void *s, int c, size_t n);
+extern void *memcpy (void *dest, const void *src, size_t n);
+extern int fprintf (FILE *stream, const char *format, ...);
+extern char * safe_strncpy (char *dst, const char *src, size_t size);
+extern size_t strlen (const char *s);
 extern struct _IO_FILE *stderr;
 extern int optind;
 struct aftype {
diff --git a/gcc/testsuite/gcc.target/aarch64/vect-fmax-fmin.c b/gcc/testsuite/gcc.target/aarch64/vect-fmax-fmin.c
index 42600b7..33a9444 100644
--- a/gcc/testsuite/gcc.target/aarch64/vect-fmax-fmin.c
+++ b/gcc/testsuite/gcc.target/aarch64/vect-fmax-fmin.c
@@ -8,11 +8,11 @@ extern void abort (void);
 #include "vect-fmaxv-fminv.x"
 
 #define DEFN_SETV(type) \
-		set_vector_##type (pR##type a, type n)   \
-		{ 				         \
-		  int i;			         \
-		  for (i=0; i<16; i++)		         \
-		    a[i] = n;				 \
+		void set_vector_##type (pR##type a, type n)   \
+		{					      \
+		  int i;				      \
+		  for (i=0; i<16; i++)			      \
+		    a[i] = n;				      \
 		}
 
 #define DEFN_CHECKV(type) \
diff --git a/gcc/testsuite/gcc.target/aarch64/vect-fp.c b/gcc/testsuite/gcc.target/aarch64/vect-fp.c
index bcf9d9d..af0c524 100644
--- a/gcc/testsuite/gcc.target/aarch64/vect-fp.c
+++ b/gcc/testsuite/gcc.target/aarch64/vect-fp.c
@@ -8,11 +8,11 @@ extern void abort (void);
 
 
 #define DEFN_SETV(type) \
-		set_vector_##type (pR##type a, type n)   \
-		{ 				         \
-		  int i;			         \
-		  for (i=0; i<16; i++)		         \
-		    a[i] = n;				 \
+		void set_vector_##type (pR##type a, type n)   \
+		{					      \
+		  int i;				      \
+		  for (i=0; i<16; i++)			      \
+		    a[i] = n;				      \
 		}
 
 #define DEFN_CHECKV(type) \
diff --git a/gcc/testsuite/gcc.target/aarch64/vect-ld1r.x b/gcc/testsuite/gcc.target/aarch64/vect-ld1r.x
index 680ce43..db83036 100644
--- a/gcc/testsuite/gcc.target/aarch64/vect-ld1r.x
+++ b/gcc/testsuite/gcc.target/aarch64/vect-ld1r.x
@@ -7,7 +7,7 @@
     for (i = 0; i < 8 / sizeof (TYPE); i++) \
       output[i] = *a; \
   } \
-  foo_ ## TYPE ## _q (TYPE *a, TYPE *output) \
+  void foo_ ## TYPE ## _q (TYPE *a, TYPE *output) \
   { \
     int i; \
     for (i = 0; i < 32 / sizeof (TYPE); i++) \
diff --git a/gcc/testsuite/gcc.target/aarch64/vect.x b/gcc/testsuite/gcc.target/aarch64/vect.x
index c0f79b5..a2b2c63 100644
--- a/gcc/testsuite/gcc.target/aarch64/vect.x
+++ b/gcc/testsuite/gcc.target/aarch64/vect.x
@@ -2,6 +2,7 @@ typedef int *__restrict__ pRINT;
 typedef unsigned int *__restrict__ pRUINT;
 typedef long long *__restrict__ pRINT64;
 typedef unsigned long long *__restrict__ pRUINT64;
+extern int abs (int j);
 
 void test_orn (pRUINT a, pRUINT b, pRUINT c)
 {