1 files changed, 1 insertions, 7 deletions
diff --git a/ruby.h b/ruby.h
index a4a8753ee9..c23a60daa8 100644
--- a/ruby.h
+++ b/ruby.h
@@ -696,9 +696,6 @@ typedef pthread_t rb_nativethread_t;
 # define NATIVETHREAD_CURRENT() pthread_self()
 # define NATIVETHREAD_EQUAL(t1,t2) pthread_equal((t1),(t2))
 # define HAVE_NATIVETHREAD
-
-# define NATIVETHREAD_KILL(th,sig) pthread_kill((th),(sig))
-# define HAVE_NATIVETHREAD_KILL
 #elif defined(_WIN32) || defined(_WIN32_WCE)
 typedef DWORD rb_nativethread_t;
 # define NATIVETHREAD_CURRENT() GetCurrentThreadId()
@@ -706,13 +703,10 @@ typedef DWORD rb_nativethread_t;
 # define HAVE_NATIVETHREAD
 #endif
 #ifdef HAVE_NATIVETHREAD
-int is_ruby_native_thread _((void));
+RUBY_EXTERN int is_ruby_native_thread();
 #else
 #define is_ruby_native_thread() (1)
 #endif
-#ifdef HAVE_NATIVETHREAD_KILL
-void ruby_native_thread_kill _((int));
-#endif
 
 #if defined(__cplusplus)
 #if 0