- fix target_examine declaration

- remove build warnings
- added --enable-gccwarnings to docs
- update mips_m4k_examine function

git-svn-id: svn://svn.berlios.de/openocd/trunk@893 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/jtag/amt_jtagaccel.c

@@ -402,7 +402,7 @@ int amt_jtagaccel_execute_queue(void)
 }
 
 #if PARPORT_USE_GIVEIO == 1
-int amt_jtagaccel_get_giveio_access()
+int amt_jtagaccel_get_giveio_access(void)
 {
     HANDLE h;
     OSVERSIONINFO version;

src/jtag/jlink.c

@@ -95,8 +95,8 @@ void jlink_simple_command(u8 command);
 int jlink_get_status(void);
 
 /* J-Link tap buffer functions */
-void jlink_tap_init();
-int jlink_tap_execute();
+void jlink_tap_init(void);
+int jlink_tap_execute(void);
 void jlink_tap_ensure_space(int scans, int bits);
 void jlink_tap_append_step(int tms, int tdi);
 void jlink_tap_append_scan(int length, u8 *buffer, scan_command_t *command);
@@ -568,7 +568,7 @@ static pending_scan_result_t pending_scan_results_buffer[MAX_PENDING_SCAN_RESULT
 
 static int last_tms;
 
-void jlink_tap_init()
+void jlink_tap_init(void)
 {
 	tap_length = 0;
 	pending_scan_results_length = 0;
@@ -640,7 +640,7 @@ void jlink_tap_append_scan(int length, u8 *buffer, scan_command_t *command)
 
 /* Pad and send a tap sequence to the device, and receive the answer.
  * For the purpose of padding we assume that we are in idle or pause state. */
-int jlink_tap_execute()
+int jlink_tap_execute(void)
 {
 	int byte_length;
 	int tms_offset;

src/jtag/jtag.c

@@ -1316,7 +1316,7 @@ void jtag_sleep(u32 us)
 
 /* Try to examine chain layout according to IEEE 1149.1 §12
  */
-int jtag_examine_chain()
+int jtag_examine_chain(void)
 {
 	jtag_device_t *device = jtag_devices;
 	scan_field_t field;

src/jtag/parport.c

@@ -274,7 +274,7 @@ int parport_register_commands(struct command_context_s *cmd_ctx)
 }
 
 #if PARPORT_USE_GIVEIO == 1
-int parport_get_giveio_access()
+int parport_get_giveio_access(void)
 {
 	HANDLE h;
 	OSVERSIONINFO version;