This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Kernel header changes break glibc build
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: netdev at vger dot kernel dot org
- Cc: David Woodhouse <dwmw2 at infradead dot org>, libc-alpha at sourceware dot org
- Date: Fri, 6 Oct 2006 17:20:07 +0000 (UTC)
- Subject: Kernel header changes break glibc build
The kernel headers installed by Linux 2.6.19-rc1 "make
headers_install" do not work for building glibc, because glibc expects
<linux/rtnetlink.h> to provide various definitions, some of which have
been moved to <linux/if_addr.h> and some of which have been removed
altogether.
This kernel patch allows glibc to build again by making rtnetlink.h
include if_addr.h and adding back the removed definitions required by
glibc, but I don't know if it's the correct approach or if glibc
should change the headers it includes and add its own macro
definitions.
Signed-off-by: Joseph Myers <joseph@codesourcery.com>
---
Index: include/linux/rtnetlink.h
===================================================================
--- include/linux/rtnetlink.h
+++ include/linux/rtnetlink.h
@@ -2,6 +2,7 @@
#define __LINUX_RTNETLINK_H
#include <linux/netlink.h>
+#include <linux/if_addr.h>
#include <linux/if_link.h>
/****
Index: include/linux/if_link.h
===================================================================
--- include/linux/if_link.h
+++ include/linux/if_link.h
@@ -82,6 +82,9 @@
#define IFLA_MAX (__IFLA_MAX - 1)
+#define IFLA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
+#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
+
/* ifi_flags.
IFF_* flags.
Index: include/linux/if_addr.h
===================================================================
--- include/linux/if_addr.h
+++ include/linux/if_addr.h
@@ -52,4 +52,7 @@
__u32 tstamp; /* updated timestamp, hundredths of seconds */
};
+#define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
+#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
+
#endif
--
Joseph S. Myers
joseph@codesourcery.com