libgcc2.c (L_exit): Provide a fake for atexit on systems which define ON_EXIT but not HAVE_ATEXIT.

        * libgcc2.c (L_exit): Provide a fake for atexit on systems which
        define ON_EXIT but not HAVE_ATEXIT.

From-SVN: r20982

gcc/ChangeLog

+Tue Jul  7 00:50:17 1998  Manfred Hollstein   (manfred@s-direktnet.de)
+
+        * libgcc2.c (L_exit): Provide a fake for atexit on systems which
+        define ON_EXIT but not HAVE_ATEXIT.
+
 Tue Jul  7 00:44:35 1998  Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
 
 	* m68k.md (zero_extend QI to HI): Correctly handle TARGET_5200.

gcc/libgcc2.c

@@ -3003,9 +3003,17 @@ exit (int status)
   _exit (status);
 }
 
-#else
+#else /* ON_EXIT defined */
 int _exit_dummy_decl = 0;	/* prevent compiler & linker warnings */
-#endif
+
+# ifndef HAVE_ATEXIT
+/* Provide a fake for atexit() using ON_EXIT.  */
+int atexit (func_ptr func)
+{
+  return ON_EXIT (func, NULL);
+}
+# endif /* HAVE_ATEXIT */
+#endif /* ON_EXIT defined */
 
 #endif /* L_exit */