kumquat-buildroot/package/libpcap/libpcap.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

22 lines
770 B
Makefile

#############################################################
#
# libpcap
#
#############################################################
LIBPCAP_VERSION:=1.1.1
LIBPCAP_SITE:=http://www.tcpdump.org/release
LIBPCAP_SOURCE:=libpcap-$(LIBPCAP_VERSION).tar.gz
LIBPCAP_INSTALL_STAGING:=YES
# doesn't have an install-strip
LIBPCAP_INSTALL_TARGET_OPT= DESTDIR="$(TARGET_DIR)" \
$(if $(BR2_PREFER_STATIC_LIB),install,install-shared)
LIBPCAP_INSTALL_STAGING_OPT= DESTDIR="$(STAGING_DIR)" install \
$(if $(BR2_PREFER_STATIC_LIB),,install-shared)
LIBPCAP_DEPENDENCIES:=zlib
LIBPCAP_CONF_ENV:=ac_cv_linux_vers=2 \
ac_cv_header_linux_wireless_h=yes # configure misdetects this
LIBPCAP_CONF_OPT:=--disable-yydebug --with-pcap=linux
$(eval $(call AUTOTARGETS,package,libpcap))