4 files changed, 4 insertions, 4 deletions
diff --git a/c/src/lib/libbsp/sh/shsim/trap34/console-io.c b/c/src/lib/libbsp/sh/shsim/trap34/console-io.c
index a88c273be4..d968323b1b 100644
--- a/c/src/lib/libbsp/sh/shsim/trap34/console-io.c
+++ b/c/src/lib/libbsp/sh/shsim/trap34/console-io.c
@@ -70,7 +70,7 @@ int console_inbyte_nonblocking(
 }
 
 /* XXX wrong place for this */
-_sys_exit (n)
+int _sys_exit (int n)
 {
   return __trap34 (SYS_exit, n, 0, 0);
 }
diff --git a/c/src/lib/libcpu/sh/sh7032/timer/timer.c b/c/src/lib/libcpu/sh/sh7032/timer/timer.c
index 3fb5151457..a576bc1ded 100644
--- a/c/src/lib/libcpu/sh/sh7032/timer/timer.c
+++ b/c/src/lib/libcpu/sh/sh7032/timer/timer.c
@@ -64,7 +64,7 @@ extern uint32_t bsp_clicks_per_second;
 
 #define ITU1_VECTOR OVI1_ISP_V
 
-rtems_isr timerisr();
+extern rtems_isr timerisr(void);
 
 static uint32_t   Timer_interrupts;
 
diff --git a/c/src/lib/libcpu/sh/sh7045/timer/timer.c b/c/src/lib/libcpu/sh/sh7045/timer/timer.c
index 0ed7f19da8..033fba8223 100644
--- a/c/src/lib/libcpu/sh/sh7045/timer/timer.c
+++ b/c/src/lib/libcpu/sh/sh7045/timer/timer.c
@@ -55,7 +55,7 @@ extern uint32_t bsp_clicks_per_second;
 
 #define MTU1_VECTOR 86
 
-rtems_isr timerisr();
+extern rtems_isr timerisr(void);
 
 static uint32_t   Timer_interrupts;
 
diff --git a/c/src/lib/libcpu/sh/sh7750/timer/timer.c b/c/src/lib/libcpu/sh/sh7750/timer/timer.c
index 8611bdb4fc..9d4ff5cfb8 100644
--- a/c/src/lib/libcpu/sh/sh7750/timer/timer.c
+++ b/c/src/lib/libcpu/sh/sh7750/timer/timer.c
@@ -39,7 +39,7 @@ extern uint32_t bsp_clicks_per_second;
 
 #define TIMER_VECTOR SH7750_EVT_TO_NUM(SH7750_EVT_TUNI1)
 
-rtems_isr timerisr();
+extern rtems_isr timerisr(void);
 
 static uint32_t   Timer_interrupts;