e3c8af9772
Older toolchains need to include sys/types.h and sys/socket.h before linux/if.h, RTA_PREF was introduces with linux-4.1.x. Fixes: http://autobuild.buildroot.net/results/2d1/2d1a3f82abb8475d39908b22f775c2dac781f330 In file included from ell/rtnl.c:28:0: .../host/arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:185:19: error: field 'ifru_addr' has incomplete type .../host/arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:186:19: error: field 'ifru_dstaddr' has incomplete type .../host/arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:187:19: error: field 'ifru_broadaddr' has incomplete type .../host/arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:188:19: error: field 'ifru_netmask' has incomplete type .../arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:189:20: error: field 'ifru_hwaddr' has incomplete type ell/rtnl.c: In function 'l_rtnl_route_extract': ell/rtnl.c:120:8: error: 'RTA_PREF' undeclared (first use in this function) Signed-off-by: Peter Seiderer <ps.report@gmx.net> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
68 lines
2.2 KiB
Diff
68 lines
2.2 KiB
Diff
From 60b4cd4c703be380aef194d31a1ffc4b42431bde Mon Sep 17 00:00:00 2001
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From: Peter Seiderer <ps.report@gmx.net>
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Date: Thu, 9 Apr 2020 22:21:36 +0200
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Subject: [PATCH] ell/rtnl: fix compile with older toolchains
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Older toolchains need to include sys/types.h and sys/socket.h before
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linux/if.h, RTA_PREF was introduces with linux-4.1.x.
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Fixes:
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In file included from ell/rtnl.c:28:0:
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.../host/arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:185:19: error: field 'ifru_addr' has incomplete type
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.../host/arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:186:19: error: field 'ifru_dstaddr' has incomplete type
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.../host/arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:187:19: error: field 'ifru_broadaddr' has incomplete type
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.../host/arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:188:19: error: field 'ifru_netmask' has incomplete type
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.../arm-buildroot-linux-gnueabi/sysroot/usr/include/linux/if.h:189:20: error: field 'ifru_hwaddr' has incomplete type
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ell/rtnl.c: In function 'l_rtnl_route_extract':
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ell/rtnl.c:120:8: error: 'RTA_PREF' undeclared (first use in this function)
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Signed-off-by: Peter Seiderer <ps.report@gmx.net>
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---
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configure.ac | 2 ++
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ell/rtnl.c | 7 ++++++-
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2 files changed, 8 insertions(+), 1 deletion(-)
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diff --git a/configure.ac b/configure.ac
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index 0351f89..3be35a4 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -113,6 +113,8 @@ AC_CHECK_LIB(dl, dlopen, dummy=yes,
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AC_CHECK_HEADERS(linux/types.h linux/if_alg.h)
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+AC_CHECK_DECLS([RTA_PREF], [], [], [[#include <linux/rtnetlink.h>]])
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+
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AC_ARG_ENABLE(glib, AC_HELP_STRING([--enable-glib],
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[enable ell/glib main loop example]),
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[enable_glib=${enableval}])
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diff --git a/ell/rtnl.c b/ell/rtnl.c
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index dc83937..3493d34 100644
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--- a/ell/rtnl.c
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+++ b/ell/rtnl.c
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@@ -25,8 +25,9 @@
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#endif
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#define _GNU_SOURCE
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-#include <linux/if.h>
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+#include <sys/types.h>
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#include <sys/socket.h>
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+#include <linux/if.h>
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#include <arpa/inet.h>
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#include "util.h"
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@@ -35,6 +36,10 @@
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#include "rtnl.h"
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#include "private.h"
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+#if defined HAVE_DECL_RTA_PREF && !HAVE_DECL_RTA_PREF
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+#define RTA_PREF 20
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+#endif
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+
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static size_t rta_add_u8(void *rta_buf, unsigned short type, uint8_t value)
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{
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struct rtattr *rta = rta_buf;
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--
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2.26.0
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