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Hi! #define _XOPEN_SOURCE 500 #include <signal.h> #include <sys/ucontext.h> does not work on ia64. The issue is that signal.h under these conditions does not source bits/sigcontext.h. Fixed thusly (the multiple inclusion guards are on most platforms inside asm/sigcontext.h, so are not needed in bits/sigcontext.h): 2001-05-21 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Include bits/sigcontext.h instead of bits/sigstack.h. * sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h: Add multiple-inclusion guards. --- libc/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h.jj Tue Mar 20 13:45:50 2001 +++ libc/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h Mon May 21 20:41:21 2001 @@ -22,7 +22,7 @@ #include <features.h> #include <signal.h> -#include <bits/sigstack.h> +#include <bits/sigcontext.h> /* * These are here mostly for backwards compatibility with older Unices. --- libc/sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h.jj Tue Mar 20 13:45:50 2001 +++ libc/sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h Mon May 21 20:52:12 2001 @@ -1,4 +1,4 @@ -/* Copyright (C) 1996, 1997, 1998,2000 Free Software Foundation, Inc. +/* Copyright (C) 1996, 1997, 1998, 2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jes Sorensen <jes@linuxcare.com>, July 2000 @@ -21,6 +21,9 @@ # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead." #endif +#ifndef _BITS_SIGCONTEXT_H +#define _BITS_SIGCONTEXT_H 1 + #include <asm/fpu.h> #include <bits/sigstack.h> @@ -50,3 +53,5 @@ struct sigcontext * include the kernel headers here. */ unsigned long int sc_mask; /* signal mask to restore after handler returns */ }; + +#endif _BITS_SIGCONTEXT_H Jakub
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