dnl Process this file with autoconf to produce a configure script.
AC_INIT(clients/lcdproc/batt.c)
AM_INIT_AUTOMAKE(lcdproc, 0.5beta)
AM_CONFIG_HEADER(config.h)

AC_CANONICAL_HOST
case "$host" in
*-*-*linux*)      dnl i586-pc-linux-gnu
	AC_DEFINE([LINUX],[1],[Define if you're using Linux.])
	ac_system_host=Linux
	;;
*-*-*solaris*)
	AC_DEFINE([SOLARIS],[1],[Define if you're using Solaris.])
	ac_system_host=Solaris
	;;
*-*-*openbsd*)    dnl i386-unknown-openbsd3.0
	AC_DEFINE([OPENBSD],[1],[Define if you're using OpenBSD.])
	ac_system_host=OpenBSD
	;;
*-*-*netbsd*)
	AC_DEFINE([NETBSD],[1],[Define if you're using NetBSD.])
	ac_system_host=NetBSD
	;;
*-*-*freebsd*)
	AC_DEFINE([FREEBSD],[1],[Define if you're using FreeBSD.])
	ac_system_host=FreeBSD
	;;
esac
AC_DEFINE_UNQUOTED([SYSTEM_HOST], [$ac_system_host], [Set this to your system host (Linux, Solaris, OpenBSD, NetBSD or FreeBSD)])

AC_MSG_CHECKING(whether to enable debugging)
AC_ARG_ENABLE(debug,
  [  --enable-debug          show debug information],
  AC_DEFINE(DEBUG)
  debug="yes",
  debug="no"
)
AC_MSG_RESULT($debug)

if test $debug = "yes"; then
dnl Enable debugging information with minimal optimisation
	CFLAGS="-g -O"
else
dnl Maximum optimisation
	CFLAGS="-O3"
fi
CFLAGS="-Wall $CFLAGS"
export CFLAGS

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_RANLIB

dnl Solaris
AC_CHECK_FUNC(gethostbyname,,[AC_CHECK_LIB(nsl,gethostbyname)])
AC_CHECK_FUNC(connect,,[AC_CHECK_LIB(socket,connect)])
AC_CHECK_FUNC(inet_aton,,[AC_CHECK_LIB(resolv,inet_aton)])
AC_CHECK_LIB(kstat, kstat_open)
AC_CHECK_FUNCS(getloadavg swapctl)
AC_CHECK_HEADERS(procfs.h sys/procfs.h sys/loadavg.h utmpx.h)

dnl Some versions of Solaris require -lelf for -lkvm
AC_CHECK_LIB(kvm, kvm_open,[
  LIBS="-lkvm $LIBS"
],[AC_MSG_CHECKING(for kvm_open in -lkvm with -lelf)
   AC_CACHE_VAL(ac_cv_lib_kvm_with_elf,
   [ac_save_LIBS="$LIBS"
    LIBS="-lkvm -lelf $LIBS"
    AC_TRY_LINK([char kvm_open();], [kvm_open()],
                ac_cv_lib_kvm_with_elf=yes, ac_cv_lib_kvm_with_elf=no)
    LIBS="$ac_save_LIBS"
   ])
   if test "$ac_cv_lib_kvm_with_elf" = "yes"; then
     AC_MSG_RESULT(yes)
     LIBS="-lkvm -lelf $LIBS"
   else
     AC_MSG_RESULT(no)
   fi
])

dnl NetBSD, OpenBSD and FreeBSD
AC_CHECK_HEADERS(sched.h sys/sched.h sys/types.h machine/pio.h machine/sysarch.h)
AC_CHECK_LIB(i386, i386_get_ioperm)
ETR_SYSV_IPC
ETR_UNION_SEMUN

dnl Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h sys/ioctl.h sys/time.h unistd.h sys/io.h errno.h)
AC_CHECK_HEADERS(limits.h kvm.h sys/param.h sys/sysctl.h sys/dkstat.h)

dnl Check for particular preprocessor macros

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_STRUCT_TM
AC_TYPE_UID_T

dnl Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_TYPE_SIGNAL
AC_CHECK_FUNCS(select socket strdup strerror strtol uname cfmakeraw ioperm)

dnl Check for various defines and features

AC_FIND_MTAB_FILE
AC_GET_FS_INFO

AC_ARG_ENABLE(stat-nfs,
  [  --enable-stat-nfs       display filesystem stats for NFS],
  AC_DEFINE(STAT_NFS)
)

AC_ARG_ENABLE(stat-smbfs,
  [  --enable-stat-smbfs     display filesystem stats for SMBFS],
  AC_DEFINE(STAT_SMBFS)
)


AC_ARG_WITH(lcdport,
  [  --with-lcdport=<port>   the server port [13666]],
  LCDPORT=$withval,
  LCDPORT="13666"
)
AC_DEFINE_UNQUOTED(LCDPORT, $LCDPORT)

AC_DEFINE_UNQUOTED(PROTOCOL_VERSION, "0.3")

AC_DEFINE_UNQUOTED(API_VERSION, "0.5beta")


AC_ARG_WITH(loadmax,
  [  --with-loadmax=<load>   Max Load Avg at which the backlight will]
  [                        start blinking [1.3]],
  LOAD_MAX=$withval,
  LOAD_MAX=1.3
)
AC_DEFINE_UNQUOTED(LOAD_MAX, $LOAD_MAX)

AC_ARG_WITH(loadmin,
  [  --with-loadmin=<load>   Min Load Avg at which the backlight will]
  [                        turn off (asleep) [0.05]],
  LOAD_MIN=$withval,
  LOAD_MIN=0.05
)
AC_DEFINE_UNQUOTED(LOAD_MIN, $LOAD_MIN)

LCD_DRIVERS_SELECT

AC_OUTPUT(Makefile
	shared/Makefile 
	server/Makefile 
	server/drivers/Makefile 
	clients/Makefile 
	clients/lcdproc/Makefile
	clients/examples/Makefile
	clients/headlines/Makefile
	docs/Makefile)