nobu	2012-06-22 12:07:26 +0900 (Fri, 22 Jun 2012)

  New Revision: 36173

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=36173

  Log:
    process.c: constant expression
    
    * process.c (rb_exec_async_signal_safe): use a constant expression
      instead of a macro.

  Modified files:
    trunk/process.c

Index: process.c
===================================================================
--- process.c	(revision 36172)
+++ process.c	(revision 36173)
@@ -2855,9 +2855,9 @@
 rb_exec_async_signal_safe(const struct rb_execarg *e, char *errmsg, size_t errmsg_buflen)
 {
 #if !defined(HAVE_FORK)
-    struct rb_execarg sarg, *sargp = &sarg;
+    struct rb_execarg sarg, *const sargp = &sarg;
 #else
-# define sargp NULL
+    struct rb_execarg *const sargp = NULL;
 #endif
 
     before_exec_async_signal_safe(); /* async-signal-safe */
@@ -2877,8 +2877,6 @@
     }
 #if !defined(HAVE_FORK)
     preserving_errno(rb_execarg_run_options(sargp, NULL, errmsg, errmsg_buflen));
-#else
-# undef sargp
 #endif
 
 failure:

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