Remove separate GCC4 versions of add_debug_command()/remove_debug_command() and

add the const in any case. As Axel points out these are C functions and we do
not affect binary compatibility by changing their signature.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29124 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/drivers/KernelExport.h

@@ -174,16 +174,10 @@ extern void			panic(const char *format, ...) _PRINTFLIKE(1, 2);
 extern void			kernel_debugger(const char *message);
 extern uint64		parse_expression(const char *string);
 
-#if __GNUC__ > 2
 extern int			add_debugger_command(const char *name,
 						debugger_command_hook hook, const char *help);
 extern int			remove_debugger_command(const char *name,
 						debugger_command_hook hook);
-#else
-extern int			add_debugger_command(char *name, debugger_command_hook hook, char *help);
-extern int			remove_debugger_command(char *name,
-						debugger_command_hook hook);
-#endif
 
 /* Miscellaneous */
 extern void			spin(bigtime_t microseconds);

src/system/kernel/debug/debug_commands.cpp

@@ -499,23 +499,15 @@ print_debugger_command_usage(const char* commandName)
 //	#pragma mark - public API
 
 int
-#if __GNUC__ > 2
 add_debugger_command(const char *name, int (*func)(int, char **),
 	const char *desc)
-#else
-add_debugger_command(char *name, int (*func)(int, char **), char *desc)
-#endif
 {
 	return add_debugger_command_etc(name, func, desc, NULL, 0);
 }
 
 
 int
-#if __GNUC__ > 2
 remove_debugger_command(const char * name, int (*func)(int, char **))
-#else
-remove_debugger_command(char * name, int (*func)(int, char **))
-#endif
 {
 	struct debugger_command *cmd = sCommands;
 	struct debugger_command *prev = NULL;