de39a17f71
The configure script fails to detect libpcap in static build because it does not take into account the libnl dependency on link. As a result the configure script silently disables mausezahn build even when BR2_PACKAGE_NETSNIFF_NG_MAUSEZAHN is enabled. Add upstream patch to use pkg-config for libpcap link flags. Cc: Joris Lijssens <joris.lijssens@gmail.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
52 lines
1.5 KiB
Diff
52 lines
1.5 KiB
Diff
From 194ec61843b9598ce90873c812b817c4b96e2e0d Mon Sep 17 00:00:00 2001
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From: Baruch Siach <baruch@tkos.co.il>
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Date: Thu, 2 Sep 2021 12:56:00 +0300
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Subject: [PATCH] Detect libpcap dependencies using pkg-config
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When building statically the link command line must include all
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dependencies of all libraries. libpcap can optionally depend on libnl.
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mausezahn can't build statically in this case.
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Use pkg-config in configure and in the link command to construct the
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library flags we need to link with libpcap.
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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---
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Upstream status: commit 194ec61843b9598ce90873c812b817c4b96e2e0d
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configure | 4 +++-
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mausezahn/Makefile | 2 +-
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2 files changed, 4 insertions(+), 2 deletions(-)
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diff --git a/configure b/configure
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index 510826a798f5..598ae2433a7a 100755
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--- a/configure
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+++ b/configure
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@@ -588,7 +588,9 @@ int main(void)
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}
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EOF
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- $CC -o $TMPDIR/pcaptest $TMPDIR/pcaptest.c -lpcap >> config.log 2>&1
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+ $CC -o $TMPDIR/pcaptest $TMPDIR/pcaptest.c \
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+ $($PKG_CONFIG --libs libpcap 2>> config.log) \
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+ >> config.log 2>&1
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if [ ! -x $TMPDIR/pcaptest ] ; then
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echo "[NO]"
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echo "CONFIG_LIBPCAP=0" >> Config
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diff --git a/mausezahn/Makefile b/mausezahn/Makefile
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index ca16b6579583..9544565355cc 100644
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--- a/mausezahn/Makefile
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+++ b/mausezahn/Makefile
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@@ -1,6 +1,6 @@
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mausezahn-libs = -lcli \
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-lnet \
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- -lpcap \
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+ $(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) $(PKG_CONFIG) --libs libpcap 2> /dev/null ) \
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-lrt \
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-lpthread \
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-lm
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--
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2.33.0
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