#
#  configure.in
#
#  Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
#
#  Copyright (C) 2000 Pekka Riikonen
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#

AC_INIT(includes/version.h)

# Compiler settings
CFLAGS="-Wall $CFLAGS"

#
# Put here any platform specific stuff
#
AC_CANONICAL_SYSTEM
case "$target" in
  *-*-linux*|*-*-mklinux*)
    CFLAGS="-D_GNU_SOURCE $CFLAGS"
    ;;
  *)
    ;;
esac

AM_INIT_AUTOMAKE(silc, 28062000)
AC_PREREQ(2.3)
AM_CONFIG_HEADER(includes/silcdefs.h)

AC_PROG_CC
AC_C_INLINE
AC_C_CONST
AC_ARG_PROGRAM

AC_PROG_LN_S
AC_SUBST(LN_S)

# XXX
# Compiler flags
if test "$GCC"; then
  CFLAGS="-finline-functions $CFLAGS"
else
  # Currently GCC is only supported compiler
  AC_MSG_ERROR(GCC is only supported compiler currently)
fi

# Program checking
AC_PROG_INSTALL
AC_PROG_RANLIB
AC_PROG_MAKE_SET

# Header checking
AC_HEADER_STDC
AC_HEADER_TIME
AC_HEADER_STAT

# More header checking
AC_CHECK_HEADERS(unistd.h string.h getopt.h errno.h fcntl.h assert.h)
AC_CHECK_HEADERS(sys/types.h sys/stat.h sys/time.h)
AC_CHECK_HEADERS(netinet/in.h netinet/tcp.h netdb.h)
AC_CHECK_HEADERS(pwd.h grp.h termcap.h)
AC_CHECK_HEADERS(ncurses.h signal.h ctype.h)
AC_CHECK_HEADERS(arpa/inet.h sys/mman.h)

# Data type checking
AC_TYPE_SIGNAL
AC_TYPE_SIZE_T
AC_TYPE_MODE_T
AC_TYPE_UID_T
AC_TYPE_PID_T

# Function checking
AC_CHECK_FUNCS(chmod stat fstat getenv putenv strerror ctime gettimeofday)
AC_CHECK_FUNCS(getpid getgid getsid getpgid getpgrp getuid)
AC_CHECK_FUNCS(strchr strstr strcpy strncpy memcpy memset memmove)
AC_CHECK_FUNCS(gethostname gethostbyname gethostbyaddr)
AC_CHECK_FUNCS(select socket listen bind shutdown close connect)
AC_CHECK_FUNCS(fcntl setsockopt)
AC_CHECK_FUNCS(getservbyname getservbyport)
AC_CHECK_FUNCS(getopt_long time)
AC_CHECK_FUNCS(mlock munlock)

# SIM support checking
# XXX These needs to be changed as more supported platforms appear.
# XXX This probably needs to be made platform dependant check.
AC_CHECKING(for SIM support)
AC_CHECK_HEADERS(dlfcn.h, 
  AC_CHECK_LIB(dl, dlopen, 
    AC_DEFINE(SILC_SIM) 
    AC_MSG_RESULT(enabled SIM support)
    LIBS="$LIBS -ldl",
    AC_MSG_RESULT(no SIM support found)),
  AC_MSG_RESULT(no SIM support found))

# Debug checking
AC_MSG_CHECKING(for enabled debugging)
AC_ARG_ENABLE(debug,
[  --enable-debug          Enable debugging (warning: it is heavy!)],
[ case "${enableval}" in
  yes) 
    AC_MSG_RESULT(yes)
    AC_DEFINE(SILC_DEBUG)
    CFLAGS="-O -g $CFLAGS"
    ;;
  *)
    AC_MSG_RESULT(no)
    CFLAGS="-O2 $CFLAGS"
    ;;
esac ], CFLAGS="-O2 $CFLAGS"
        AC_MSG_RESULT(no))

# XXX
#LIBS="$LIBS -lefence"

AC_ARG_WITH(silcd-config-file,
[  --with-silcd-config-file[=PATH]
                          Use PATH as default configuration file in SILC
                          server.],
[ AC_DEFINE_UNQUOTED(SILC_SERVER_CONFIG_FILE, "$withval") ])

# Other configure scripts
#AC_CONFIG_SUBDIRS(lib/zlib)
AC_CONFIG_SUBDIRS(lib/silcmath/gmp-3.0.1)

AC_OUTPUT( \
Makefile
doc/Makefile
includes/Makefile
lib/Makefile
lib/silccore/Makefile
lib/silccrypt/Makefile
lib/silcmath/Makefile
lib/silcsim/Makefile
lib/silcsim/modules/Makefile
lib/silcske/Makefile
silc/Makefile
silcd/Makefile)