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-rw-r--r--ChangeLog5
-rw-r--r--sysdeps/unix/sysv/linux/ia64/sys/ucontext.h7
2 files changed, 10 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index d1e99da..30afaf5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-09-01 Andreas Schwab <schwab@suse.de>
+
+ * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h [g++ >= 3.5]: Use
+ __builtin_offsetof.
+
2004-09-01 Jakub Jelinek <jakub@redhat.com>
[BZ #361]
diff --git a/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h b/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h
index 1cb1ec5..17dc85f 100644
--- a/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 2000, 2001, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -32,7 +32,10 @@
typedef struct sigcontext mcontext_t;
-#ifdef __GNUC__
+#if defined __cplusplus && __GNUC_PREREQ (3, 5)
+# define _SC_GR0_OFFSET \
+ __builtin_offsetof (struct sigcontext, sc_gr[0])
+#elif defined __GNUC__
# define _SC_GR0_OFFSET \
(((char *) &((struct sigcontext *) 0)->sc_gr[0]) - (char *) 0)
#else