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# Checks for header files.
AX_CHECK_INCLUDE([asm/types.h],[ASM_TYPES_H])
AX_CHECK_INCLUDE([features.h],[FEATURES_H])
AX_CHECK_INCLUDE([sys/param.h],[SYS_PARAM_H])
AX_CHECK_INCLUDE([sys/un.h],[SYS_UN_H])
AX_CHECK_INCLUDE([neteconet/ec.h],[NETECONET_EC_H])
AX_CHECK_INCLUDE([linux/atalk.h],[LINUX_ATALK_H])
AX_CHECK_INCLUDE([netinet/if_fddi.h],[NETINET_IF_FDDI_H])
AX_CHECK_INCLUDE([linux/if_fddi.h],[LINUX_IF_FDDI_H])
AX_CHECK_INCLUDE([linux/if_tr.h],[LINUX_IF_TR_H])
AX_CHECK_INCLUDE([net/if_arp.h],[NET_IF_ARP_H])
AX_CHECK_INCLUDE([linux/if_ether.h],[LINUX_IF_ETHER_H])
AX_CHECK_INCLUDE([endian.h],[ENDIAN_H])
AX_CHECK_INCLUDE([byteswap.h],[BYTESWAP_H])
AX_CHECK_INCLUDE([alloca.h],[ALLOCA_H])
AX_CHECK_INCLUDE([sys/sockio.h],[SYS_SOCKIO_H])
AX_CHECK_INCLUDE([sys/sysctl.h],[SYS_SYSCTL_H])
AX_CHECK_INCLUDE([sys/time.h],[SYS_TIME_H])
AX_CHECK_INCLUDE([sys/module.h],[SYS_MODULE_H])
AX_CHECK_INCLUDE([sys/linker.h],[SYS_LINKER_H])
AX_CHECK_INCLUDE([sys/mac.h],[SYS_MAC_H])
AX_CHECK_INCLUDE([netax25/ax25.h],[NETAX25_AX25_H])
AX_CHECK_INCLUDE([linux/ax25.h],[LINUX_AX25_H])
AX_CHECK_INCLUDE([linux/types.h],[LINUX_TYPES_H])
AX_CHECK_INCLUDE([linux/if_strip.h],[LINUX_IF_STRIP_H])
AX_CHECK_INCLUDE([linux/x25.h],[LINUX_X25_H])
AX_CHECK_INCLUDE([linux/if_arp.h],[LINUX_IF_ARP_H])
AX_CHECK_INCLUDE([sys/ioctl.h],[SYS_IOCTL_H])
AX_CHECK_INCLUDE([libc-internal.h],[LIBC_INTERNAL_H])
AX_CHECK_INCLUDE([signal.h],[SIGNAL_H])
AX_CHECK_INCLUDE([net/if.h],[NET_IF_H])
AX_CHECK_INCLUDE([netatalk/at.h],[NETATALK_AT_H])
AX_CHECK_INCLUDE([net/pfvar.h],[NET_PFVAR_H])
AX_CHECK_INCLUDE([net/if_pfsync.h],[NET_IF_PFSYNC_H])
AX_CHECK_INCLUDE([netpacket/packet.h],[NETPACKET_PACKET_H])
AX_CHECK_INCLUDE([stdbool.h],[STDBOOL_H])
AX_CHECK_INCLUDE([time.h],[TIME_H])
AX_CHECK_INCLUDE([netinet/in.h],[NETINET_IN_H])
AX_CHECK_INCLUDE([net/if_var.h],[NET_IF_VAR_H])
AX_CHECK_INCLUDE([netinet/in_var.h],[NETINET_IN_VAR_H])
AX_CHECK_INCLUDE([netipx/ipx.h],[NETIPX_IPX_H])
AX_CHECK_INCLUDE([netipx/ipx_if.h],[NETIPX_IPX_IF_H])
AX_CHECK_INCLUDE([net/if_dl.h],[NET_IF_DL_H])
AX_CHECK_INCLUDE([net/if_types.h],[NET_IF_TYPES_H])
AX_CHECK_INCLUDE([net/route.h],[NET_ROUTE_H])
AX_CHECK_INCLUDE([netinet/ether.h],[NETINET_ETHER_H])
AX_CHECK_INCLUDE([netinet/if_ether.h],[NETINET_IF_ETHER_H])
AX_CHECK_INCLUDE([linux/if_slip.h],[LINUX_IF_SLIP_H])
AX_CHECK_INCLUDE([ctype.h],[CTYPE_H])
AX_CHECK_INCLUDE([netinet/ip_carp.h],[NETINET_IP_CARP_H])
AX_CHECK_INCLUDE([net/if_media.h],[NET_IF_MEDIA_H])
AX_CHECK_INCLUDE([net80211/ieee80211.h],[NET80211_IEEE80211_H])
AX_CHECK_INCLUDE([net80211/ieee80211_crypto.h],[NET80211_IEEE80211_CRYPTO_H])
AX_CHECK_INCLUDE([net80211/ieee80211_ioctl.h],[NET80211_IEEE80211_IOCTL_H])
AX_CHECK_INCLUDE([net/if_lagg.h],[NET_IF_LAGG_H])
AX_CHECK_INCLUDE([net/if_vlan_var.h],[NET_IF_VLAN_VAR_H])
AX_CHECK_INCLUDE([net/ethernet.h],[NET_ETHERNET_H])
AX_CHECK_INCLUDE([ifaddrs.h],[IFADDRS_H])
AX_CHECK_INCLUDE([netdb.h],[NETDB_H])
AX_CHECK_INCLUDE([netinet6/nd6.h],[NETINET6_ND6_H])
AX_CHECK_INCLUDE([stdarg.h],[STDARG_H])
AX_CHECK_INCLUDE([net80211/ieee80211_freebsd.h],[NET80211_IEEE80211_FREEBSD_H])
AX_CHECK_INCLUDE([linux/rose.h],[LINUX_ROSE_H])
AX_CHECK_INCLUDE([fcntl.h],[FCNTL_H])
AX_CHECK_INCLUDE([malloc.h],[MALLOC_H])
AX_CHECK_INCLUDE([arpa/inet.h],[ARPA_INET_H])

# additional headers
AX_CHECK_INCLUDE([sys/dlpi.h],[SYS_DLPI_H])
AX_CHECK_INCLUDE([stropts.h],[STROPTS_H])
AX_CHECK_INCLUDE([net/nit_if.h],[NET_NIT_IF_H])
AX_CHECK_INCLUDE([netio.h],[NETIO_H])

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_SIZE_T
AC_TYPE_INT8_T
AC_TYPE_INT16_T
AC_TYPE_INT32_T
AC_TYPE_INT64_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
AC_CHECK_TYPES([caddr_t])

AH_TEMPLATE([LIBS],[Extra libraries needed for this build])
AC_CHECK_FUNCS([memcmp memset memcpy bzero getpagesize memmove getnameinfo])

# my additions
AC_C_BIGENDIAN
AC_CHECK_SIZEOF([uint8_t])
AC_CHECK_SIZEOF([uint16_t])
AC_CHECK_SIZEOF([uint32_t])
AC_CHECK_SIZEOF([uint64_t])
AC_CHECK_SIZEOF([u_int8_t])
AC_CHECK_SIZEOF([u_int16_t])
AC_CHECK_SIZEOF([u_int32_t])
AC_CHECK_SIZEOF([u_int64_t])


AH_TEMPLATE([LOCAL_SIZEOF_POINTER],[Define size of pointer])
AC_MSG_CHECKING([for size of pointer])
AC_RUN_IFELSE([
#include "confdefs.h"  
#include "defaults.h"
int   
main()
{
  FILE *FP;
  long my_pointer_size = sizeof(char *);
  if (FP = fopen("conftest.data", "w")) {
    (void) fprintf(FP,"%ld\n",my_pointer_size);
    fclose(FP);
    return 0;
  } else
    return 1;
}],
# action if true
ac_pointersize=`cat conftest.data`