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net: add mmsghdr struct check for L2TPV3

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The mmsghdr struct is only introduced in Linux 2.6.32; add a
configure check for it and disable L2TPV3 on hosts which are
too old to provide it, rather than simply failing to compile.

Reported-by: chenliang <chenliang88@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1404219488-11196-1-git-send-email-arei.gonglei@huawei.com
[PMM: cleaned up commit message and corrected kernel version number]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Gonglei 2014-07-01 20:58:08 +08:00 • committed by Peter Maydell
parent 596742db33
commit 015a33bd05
3 changed files with 19 additions and 3 deletions
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16
configure vendored
View file

@ -1711,6 +1711,19 @@ else
echo big/little test failed
fi
##########################################
# L2TPV3 probe
cat > $TMPC <<EOF
#include <sys/socket.h>
int main(void) { return sizeof(struct mmsghdr); }
EOF
if compile_prog "" "" ; then
l2tpv3=yes
else
l2tpv3=no
fi
##########################################
# pkg-config probe
@ -4343,6 +4356,9 @@ fi
if test "$netmap" = "yes" ; then
echo "CONFIG_NETMAP=y" >> $config_host_mak
fi
if test "$l2tpv3" = "yes" ; then
echo "CONFIG_L2TPV3=y" >> $config_host_mak
fi
if test "$cap_ng" = "yes" ; then
echo "CONFIG_LIBCAP=y" >> $config_host_mak
fi