akr	2009-02-06 20:40:33 +0900 (Fri, 06 Feb 2009)

  New Revision: 22091

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=22091

  Log:
    * signal.c (register_sigaltstack): ignore sigaltstack error.
      It fails on OpenBSD 4.4 when pthread library is linked.

  Modified files:
    trunk/ChangeLog
    trunk/signal.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 22090)
+++ ChangeLog	(revision 22091)
@@ -1,3 +1,8 @@
+Fri Feb  6 20:37:42 2009  Tanaka Akira  <akr@f...>
+
+	* signal.c (register_sigaltstack): ignore sigaltstack error.
+	  It fails on OpenBSD 4.4 when pthread library is linked.
+
 Fri Feb  6 18:18:07 2009  NAKAMURA Usaku  <usa@r...>
 
 	* win32/win32.c (rb_w32_readdir_with_enc): fallback to OS's conversion
Index: signal.c
===================================================================
--- signal.c	(revision 22090)
+++ signal.c	(revision 22091)
@@ -444,8 +444,7 @@
     newSS.ss_size = ALT_STACK_SIZE;
     newSS.ss_flags = 0;
 
-    if (sigaltstack(&newSS, &oldSS) < 0) 
-	rb_bug("register_sigaltstack. error\n");
+    sigaltstack(&newSS, &oldSS); /* ignore error. */
 }
 #endif
 

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