update getters

include/inc-syscall/syscall.hpp

@@ -46,6 +46,7 @@ namespace IRDB_SDK
 			virtual ~Syscalls_t() { }
 		// getters
 			virtual const SyscallSiteSet_t& getSyscalls() const = 0;
+			virtual const SyscallSiteSet_t getSyscalls() = 0;
 		// factories
 			static unique_ptr<Syscalls_t> factory(FileIR_t *the_firp); 
 	};