gthr-posix.h (__gthread_active_p): Use pthread_cancel instead of pthread_create…

gthr-posix.h (__gthread_active_p): Use pthread_cancel instead of pthread_create to find out if threads are enabled.

	* gthr-posix.h (__gthread_active_p): Use pthread_cancel instead
	of pthread_create to find out if threads are enabled.
	* gthr-posix95.h (__gthread_active_p): Likewise.

From-SVN: r93762

gcc/ChangeLog

+2005-01-17  Ranjit Mathew  <rmathew@hotmail.com>
+
+	* gthr-posix.h (__gthread_active_p): Use pthread_cancel instead
+	of pthread_create to find out if threads are enabled.
+	* gthr-posix95.h (__gthread_active_p): Likewise.
+
 2005-01-17  Ira Rosen  <irar@il.ibm.com>
 
 	* fortran/f95-lang.c (gfc_init_builtin_functions): Call

gcc/gthr-posix.h

 /* Threads compatibility routines for libgcc2 and libobjc.  */
 /* Compile this one with gcc.  */
-/* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004
+/* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -66,6 +66,7 @@ typedef pthread_mutex_t __gthread_recursive_mutex_t;
 #pragma weak pthread_getspecific
 #pragma weak pthread_setspecific
 #pragma weak pthread_create
+#pragma weak pthread_cancel
 
 #pragma weak pthread_mutex_lock
 #pragma weak pthread_mutex_trylock
@@ -106,7 +107,7 @@ static inline int
 __gthread_active_p (void)
 {
   static void *const __gthread_active_ptr 
-    = __extension__ (void *) &pthread_create;
+    = __extension__ (void *) &pthread_cancel;
   return __gthread_active_ptr != 0;
 }
 

gcc/gthr-posix95.h

 /* Threads compatibility routines for libgcc2 and libobjc.  */
 /* Compile this one with gcc.  */
-/* Copyright (C) 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -64,6 +64,7 @@ typedef struct {
 #pragma weak pthread_getspecific
 #pragma weak pthread_setspecific
 #pragma weak pthread_create
+#pragma weak pthread_cancel
 #pragma weak pthread_self
 
 #pragma weak pthread_mutex_lock
@@ -105,7 +106,7 @@ static inline int
 __gthread_active_p (void)
 {
   static void *const __gthread_active_ptr 
-    = __extension__ (void *) &pthread_create;
+    = __extension__ (void *) &pthread_cancel;
   return __gthread_active_ptr != 0;
 }