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Add configure test for PCAP_NETMASK_UNKNOWN

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dmiller 2014-10-31 13:28:12 +00:00
parent f8ef3f48da
commit 80f18a2bc7
7 changed files with 123 additions and 1 deletions
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21
acinclude.m4
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@ -87,6 +87,27 @@ int main() {
[AC_MSG_RESULT(cross-compiling -- assuming yes); $3])
])
dnl Checks if PCAP_NETMASK_UNKNOWN is defined (has been since libpcap 1.1.1)
dnl Sets it to 0 (no checking) if it's not defined.
AC_DEFUN([PCAP_DEFINE_NETMASK_UNKNOWN],
[
AC_MSG_CHECKING(if PCAP_NETMASK_UNKNOWN is defined/handled by libpcap)
AC_CACHE_VAL(ac_cv_have_pcap_netmask_unknown,
AC_TRY_COMPILE(
[
#include <pcap.h>
],
[
int i = PCAP_NETMASK_UNKNOWN;
],
ac_cv_have_pcap_netmask_unknown=yes,
ac_cv_have_pcap_netmask_unknown=no))
if test $ac_cv_have_pcap_netmask_unknown = no; then
AC_DEFINE(PCAP_NETMASK_UNKNOWN, 0, [Possibly using libpcap prior to 1.1.0.])
fi
AC_MSG_RESULT($ac_cv_have_pcap_netmask_unknown)
])
dnl Checks if IPPROTO_RAW induces IP_HDRINCL-like behavior in AF_INET6 sockets.
dnl Defines HAVE_IPV6_IPPROTO_RAW if so. So far I only know this happens on
dnl Linux.