kumquat-buildroot/package/tcpdump/tcpdump.mk
Thomas Petazzoni 4c6a451ac9 tcpdump, libpcap: simplify and fix ac_cv_linux_vers
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>
2011-01-25 16:23:22 +01:00

25 lines
835 B
Makefile

#############################################################
#
# tcpdump
#
#############################################################
# Copyright (C) 2001-2003 by Erik Andersen <andersen@codepoet.org>
# Copyright (C) 2002 by Tim Riker <Tim@Rikers.org>
TCPDUMP_VERSION:=4.1.1
TCPDUMP_SITE:=http://www.tcpdump.org/release
TCPDUMP_SOURCE:=tcpdump-$(TCPDUMP_VERSION).tar.gz
TCPDUMP_CONF_ENV:=ac_cv_linux_vers=2
TCPDUMP_CONF_OPT:=--without-crypto \
$(if $(BR2_PACKAGE_TCPDUMP_SMB),--enable-smb,--disable-smb)
TCPDUMP_DEPENDENCIES:=zlib libpcap
# make install installs an unneeded extra copy of the tcpdump binary
define TCPDUMP_REMOVE_DUPLICATED_BINARY
rm -f $(TARGET_DIR)/usr/sbin/tcpdump.$(TCPDUMP_VERSION)
endef
TCPDUMP_POST_INSTALL_TARGET_HOOKS += TCPDUMP_REMOVE_DUPLICATED_BINARY
$(eval $(call AUTOTARGETS,package,tcpdump))