yugui	2008-11-23 13:17:52 +0900 (Sun, 23 Nov 2008)

  New Revision: 20331

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=20331

  Log:
    * signal.c (ALT_STACK_SIZE): 4KB is not enough on Mac OS X.
      Uses SIGSTKSZ.  this fixes [ruby-core:20040].

  Modified files:
    trunk/ChangeLog
    trunk/signal.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 20330)
+++ ChangeLog	(revision 20331)
@@ -1,3 +1,8 @@
+Sun Nov 23 00:04:14 2008  Yuki Sonoda (Yugui)  <yugui@y...>
+
+	* signal.c (ALT_STACK_SIZE): 4KB is not enough on Mac OS X.
+	  Uses SIGSTKSZ.
+
 Sat Nov 22 21:29:54 2008  Yuki Sonoda (Yugui)  <yugui@y...>
 
 	* test/ruby/test_method.rb (test_default_accessiblity): test case for
Index: signal.c
===================================================================
--- signal.c	(revision 20330)
+++ signal.c	(revision 20331)
@@ -416,7 +416,11 @@
 
 #ifdef POSIX_SIGNAL
 #ifdef USE_SIGALTSTACK
+#ifdef SIGSTKSZ
+#define ALT_STACK_SIZE SIGSTKSZ
+#else
 #define ALT_STACK_SIZE (4*1024)
+#endif
 /* alternate stack for SIGSEGV */
 static void register_sigaltstack() {
     stack_t newSS, oldSS;

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