* process.c (rb_f_exec): call rb_exec_async_signal_safe except on

Mac OS X.  cf. the comment in before_exec_non_async_signal_safe.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36009 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sun Jun 10 12:43:23 2012  Tanaka Akira  <akr@fsij.org>
+
+	* process.c (rb_f_exec): call rb_exec_async_signal_safe except on
+	  Mac OS X.  cf. the comment in before_exec_non_async_signal_safe.
+
 Sun Jun 10 12:15:18 2012  Tanaka Akira  <akr@fsij.org>
 
 	* io.c (popen_exec): don't call rb_thread_atfork_before_exec.  use

process.c

@@ -1014,7 +1014,7 @@ static void before_exec_non_async_signal_safe(void)
 	/*
 	 * On Mac OS X 10.5.x (Leopard) or earlier, exec() may return ENOTSUPP
 	 * if the process have multiple threads. Therefore we have to kill
-	 * internal threads temporary. [ruby-core: 10583]
+	 * internal threads temporary. [ruby-core:10583]
 	 */
 	rb_thread_stop_timer_thread(0);
     }
@@ -2028,7 +2028,11 @@ rb_f_exec(int argc, VALUE *argv)
 
     rb_exec_arg_prepare(&earg, argc, argv);
 
+#ifdef __MacOS_X__
     rb_exec_err(&earg, errmsg, sizeof(errmsg));
+#else
+    rb_exec_async_signal_safe(&earg, errmsg, sizeof(errmsg));
+#endif
     if (errmsg[0])
         rb_sys_fail(errmsg);
     rb_sys_fail_str(earg.use_shell ? earg.invoke.sh.shell_script : earg.invoke.cmd.command_name);