#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ(2.61)
AC_INIT(arping, 2.09, thomas@habets.pp.se)
AC_CANONICAL_SYSTEM
AC_CONFIG_SRCDIR([src/arping.c])
AM_INIT_AUTOMAKE
AM_MAINTAINER_MODE
AC_CONFIG_HEADER(config.h)


# Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_MAKE_SET

# Checks for libraries.
AC_CHECK_LIB([socket], [socket])
AC_CHECK_LIB([nsl], [gethostbyname])
AC_CHECK_LIB([rt], [clock_gettime])
AC_CHECK_LIB([net], [libnet_name_resolve],
      [AC_MSG_ERROR([libnet 1.0.x found. Arping 2.x requires libnet 1.1.x])])
AC_CHECK_LIB([net], [libnet_init], ,[AC_MSG_ERROR([libnet 1.1.x not found])])
AC_CHECK_LIB([pcap], [pcap_open_live], ,[AC_MSG_ERROR([libpcap not found])])

# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([\
arpa/inet.h \
netinet/in.h \
stdlib.h \
sys/socket.h \
sys/time.h \
sys/types.h \
stdint.h \
libnet.h \
win32/libnet.h \
net/bpf.h \
unistd.h])

# Libnet include file is not optional
if test ! x$ac_cv_header_libnet_h = xyes; then
  AC_MSG_ERROR([Can't find libnet.h. See INSTALL file for where to get Libnet])
fi

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_HEADER_TIME
AC_C_VOLATILE
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T

# Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_FUNC_SELECT_ARGTYPES
AC_FUNC_SETVBUF_REVERSED
AC_TYPE_SIGNAL
AC_CHECK_FUNCS([gettimeofday memset select strchr strdup strerror strstr])

case "$target_os" in
     *linux*)
          AC_LIBOBJ([findif_linux])
          ;;
     *freebsd*|*openbsd*|*solaris*)
          AC_LIBOBJ([findif_bsd])
          ;;
     *)
          AC_LIBOBJ([findif_other])
          ;;
esac
AC_CONFIG_FILES([Makefile])
AC_CONFIG_FILES([src/Makefile])
AC_CONFIG_FILES([doc/Makefile])
AC_OUTPUT

echo "
  $PACKAGE_NAME version $PACKAGE_VERSION
  Prefix.........: $prefix
  Debug Build....: $debug
  C Compiler.....: $CC $CFLAGS $CPPFLAGS
  Linker.........: $LD $LDFLAGS $LIBS
"