79 lines
2.9 KiB
Diff
79 lines
2.9 KiB
Diff
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From 4289e62c7966e5abeb95307717cef30a51fcdccf Mon Sep 17 00:00:00 2001
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From: Baruch Siach <baruch@tkos.co.il>
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Date: Wed, 29 Oct 2014 13:21:05 +0200
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Subject: [PATCH] Use system libpcap when configured with --with-system-pcap
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Don't force the local libpcap build when the system provides one. When
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--with-system-pcap is given to configure, don't try to locate a local libpcap
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build. This help build systems like Buildroot that store build trees in the
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same directory, but still prefer dynamically linking against system wide
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libpcap.so to save space.
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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Status: sent upstream (https://github.com/the-tcpdump-group/tcpdump/pull/408)
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aclocal.m4 | 46 +++++++++++++++++++++++++---------------------
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1 file changed, 25 insertions(+), 21 deletions(-)
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diff --git a/aclocal.m4 b/aclocal.m4
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index 80614cf21050..cd0a94414bbf 100644
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--- a/aclocal.m4
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+++ b/aclocal.m4
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@@ -438,27 +438,31 @@ AC_DEFUN(AC_LBL_LIBPCAP,
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LIBS="$LIBS $pfopen"
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fi
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fi
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- AC_MSG_CHECKING(for local pcap library)
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- libpcap=FAIL
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- lastdir=FAIL
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- places=`ls $srcdir/.. | sed -e 's,/$,,' -e "s,^,$srcdir/../," | \
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- egrep '/libpcap-[[0-9]]+\.[[0-9]]+(\.[[0-9]]*)?([[ab]][[0-9]]*|-PRE-GIT)?$'`
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- places2=`ls .. | sed -e 's,/$,,' -e "s,^,../," | \
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- egrep '/libpcap-[[0-9]]+\.[[0-9]]+(\.[[0-9]]*)?([[ab]][[0-9]]*|-PRE-GIT)?$'`
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- for dir in $places $srcdir/../libpcap ../libpcap $srcdir/libpcap $places2 ; do
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- basedir=`echo $dir | sed -e 's/[[ab]][[0-9]]*$//' | \
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- sed -e 's/-PRE-GIT$//' `
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- if test $lastdir = $basedir ; then
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- dnl skip alphas when an actual release is present
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- continue;
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- fi
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- lastdir=$dir
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- if test -r $dir/libpcap.a ; then
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- libpcap=$dir/libpcap.a
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- d=$dir
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- dnl continue and select the last one that exists
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- fi
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- done
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+ libpcap=FAIL
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+ AC_MSG_CHECKING(for local pcap library)
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+ AC_ARG_WITH([system-libpcap],
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+ [AS_HELP_STRING([--with-system-libpcap], [don't use local pcap library])])
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+ if test "x$with_system_libpcap" != xyes ; then
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+ lastdir=FAIL
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+ places=`ls $srcdir/.. | sed -e 's,/$,,' -e "s,^,$srcdir/../," | \
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+ egrep '/libpcap-[[0-9]]+\.[[0-9]]+(\.[[0-9]]*)?([[ab]][[0-9]]*|-PRE-GIT)?$'`
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+ places2=`ls .. | sed -e 's,/$,,' -e "s,^,../," | \
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+ egrep '/libpcap-[[0-9]]+\.[[0-9]]+(\.[[0-9]]*)?([[ab]][[0-9]]*|-PRE-GIT)?$'`
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+ for dir in $places $srcdir/../libpcap ../libpcap $srcdir/libpcap $places2 ; do
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+ basedir=`echo $dir | sed -e 's/[[ab]][[0-9]]*$//' | \
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+ sed -e 's/-PRE-GIT$//' `
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+ if test $lastdir = $basedir ; then
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+ dnl skip alphas when an actual release is present
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+ continue;
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+ fi
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+ lastdir=$dir
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+ if test -r $dir/libpcap.a ; then
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+ libpcap=$dir/libpcap.a
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+ d=$dir
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+ dnl continue and select the last one that exists
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+ fi
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+ done
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+ fi
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if test $libpcap = FAIL ; then
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AC_MSG_RESULT(not found)
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--
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2.1.1
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