4c6a451ac9
For some reason, tcpdump and libpcap need to have some information about the kernel version being used. This information is passed using the ac_cv_linux_vers autoconf variable. However, the current value is determined using BR2_DEFAULT_KERNEL_HEADERS which is only defined when an internal Buildroot toolchain is used. So it would break with an external toolchain or the Crosstool-NG backend. According to Mike Frysinger at http://lists.busybox.net/pipermail/buildroot/2011-January/040861.html, this value is only used to determine if the kernel version is 0.x, 1.x or 2.x, so passing ac_cv_linux_vers=2 is sufficient since Buildroot only supports the 2.6 kernel anyway. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
25 lines
835 B
Makefile
25 lines
835 B
Makefile
#############################################################
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#
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# tcpdump
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#
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#############################################################
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# Copyright (C) 2001-2003 by Erik Andersen <andersen@codepoet.org>
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# Copyright (C) 2002 by Tim Riker <Tim@Rikers.org>
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TCPDUMP_VERSION:=4.1.1
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TCPDUMP_SITE:=http://www.tcpdump.org/release
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TCPDUMP_SOURCE:=tcpdump-$(TCPDUMP_VERSION).tar.gz
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TCPDUMP_CONF_ENV:=ac_cv_linux_vers=2
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TCPDUMP_CONF_OPT:=--without-crypto \
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$(if $(BR2_PACKAGE_TCPDUMP_SMB),--enable-smb,--disable-smb)
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TCPDUMP_DEPENDENCIES:=zlib libpcap
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# make install installs an unneeded extra copy of the tcpdump binary
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define TCPDUMP_REMOVE_DUPLICATED_BINARY
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rm -f $(TARGET_DIR)/usr/sbin/tcpdump.$(TCPDUMP_VERSION)
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endef
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TCPDUMP_POST_INSTALL_TARGET_HOOKS += TCPDUMP_REMOVE_DUPLICATED_BINARY
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$(eval $(call AUTOTARGETS,package,tcpdump))
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