/
acinclude.m4
127 lines (122 loc) · 3.25 KB
/
acinclude.m4
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dnl Type of 6th argument to recvfrom(). Usually int or socklen_t.
AC_DEFUN([RECVFROM_ARG6_TYPE],
[
AC_LANG_PUSH(C++)
AC_MSG_CHECKING([for type of 6th argument to recvfrom()])
recvfrom6_t=
for t in socklen_t int; do
AC_TRY_COMPILE([
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>],[
$t arg;
recvfrom (0, NULL, 0, 0, NULL, &arg);],[
recvfrom6_t="$t"
break])
done
if test "x$recvfrom6_t" = x; then
AC_MSG_WARN([Cannot find type for 6th argument to recvfrom(). Using socklen_t ptr])
recvfrom6_t="socklen_t"
fi
AC_MSG_RESULT($recvfrom6_t)
AC_DEFINE_UNQUOTED(recvfrom6_t, $recvfrom6_t,
[Type of 6th argument to recvfrom()])
AC_LANG_POP(C++)
])
dnl Checks if the pcap version is suitable. The has to be at least version
dnl 0.9.4. Mac OS X 10.6 has a bug in its BIOCSRTIMEOUT ioctl that is worked
dnl around in libpcap 1.1.0 and later; but before that we must use our own copy.
AC_DEFUN([PCAP_IS_SUITABLE],
[
AC_CHECK_HEADERS(sys/ioccom.h sys/time.h net/bpf.h)
AC_MSG_CHECKING(if libpcap is suitable)
AC_TRY_RUN([
#include <stdio.h>
extern char pcap_version[];
int main() {
int major, minor1, minor2;
sscanf(pcap_version,"%d.%d.%d", &major, &minor1, &minor2);
if (major > 0)
return 0;
if (minor1 < 9)
return 1;
if (minor2 < 4)
return 1;
return 0;
}
], [
AC_TRY_RUN([
#include <stdio.h>
#include <sys/types.h>
#ifdef HAVE_SYS_IOCCOM_H
#include <sys/ioccom.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_NET_BPF_H
#include <net/bpf.h>
#endif
extern char pcap_version[];
int main() {
int major, minor;
sscanf(pcap_version,"%d.%d", &major, &minor);
if ((major == 1 && minor >= 1) || major > 1)
return 0;
#ifdef BIOCSRTIMEOUT
#ifdef IOCPARM_LEN
if (IOCPARM_LEN(BIOCSRTIMEOUT) != sizeof(struct timeval))
return 1;
#endif
#endif
return 0;
}
], [
AC_CHECK_DECL([pcap_get_selectable_fd],
[AC_MSG_RESULT(yes); $1],
[AC_MSG_RESULT(no -- pcap_get_selectable_fd not declared); $2],
[[#include <pcap.h>]])
],
[AC_MSG_RESULT(no -- BPF_TIMEOUT BIOCSRTIMEOUT bug (64-bit OS X)); $2])
],
[AC_MSG_RESULT(no); $2],
[AC_MSG_RESULT(cross-compiling -- assuming yes); $3])
])
dnl Checks if IPPROTO_RAW induces IP_HDRINCL-like behavior in AF_INET6 sockets.
dnl Defines HAVE_IPV6_IPPROTO_RAW if so. So far I only know this happens on
dnl Linux.
AC_DEFUN([CHECK_IPV6_IPPROTO_RAW],
[
AC_MSG_CHECKING(if AF_INET6 IPPROTO_RAW sockets include the packet header)
# This should be replaced with a better test, if possible.
case "$host" in
*-linux*)
AC_DEFINE(HAVE_IPV6_IPPROTO_RAW, 1,
[If AF_INET6 IPPROTO_RAW sockets include the packet header])
AC_MSG_RESULT(yes)
;;
*)
AC_MSG_RESULT(no)
;;
esac
])
AC_DEFUN([LARGE_FILES_IF_NOT_BROKEN],
[
AC_LANG_PUSH(C++)
AC_MSG_CHECKING([for broken _LARGE_FILES support, such as with gcc <4.4.0 on AIX])
AC_CACHE_VAL(ac_cv_large_files_broken,
AC_TRY_COMPILE(
[
#define _LARGE_FILES 1
#include<cstdio>],
[],
ac_cv_large_files_broken=no,
ac_cv_large_files_broken=yes))
if test $ac_cv_large_files_broken = no; then
AC_SYS_LARGEFILE
fi
AC_MSG_RESULT($ac_cv_large_files_broken)
AC_LANG_POP(C++)
]
)