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

AC_PREREQ(2.57)
AC_INIT([LCD4Linux],[0.9.9],[reinelt@eunet.at])
AC_CONFIG_SRCDIR([lcd4linux.c])
AM_INIT_AUTOMAKE(lcd4linux,0.9.9)
AM_CONFIG_HEADER(config.h)

# Checks for programs.
AC_PROG_CC

# Checks for libraries.
AC_CHECK_LIB(m, log)

# curses
sinclude(curses.m4)
AC_CHECK_CURSES

# Checks for X11
AC_PATH_XTRA

# drivers
AC_MSG_CHECKING([which drivers to compile])
AC_ARG_WITH(
  drivers, 
  [  --with-drivers=<list>   compile driver for displays in <list>,]
  [                        drivers may be separated with commas,]	
  [                        'all' (default) compiles all available drivers,]	
  [                        drivers may be excluded with 'all,!<driver>',]	
  [                        (try 'all,\!<driver>' if your shell complains...)]	
  [                        possible drivers are:]	
  [                        BeckmannEgle, CrystalFontz, Cwlinux, HD44780,]
  [                        M50530, T6963, USBLCD, MatrixOrbital, PalmPilot]
  [                        PNG, PPM, X11, Text],
  drivers=$withval, 
  drivers=all
)

drivers=`echo $drivers|sed 's/,/ /g'`

for driver in $drivers; do

   case $driver in 
      !*) 
         val="no"
         driver=`echo $driver|cut -c 2-`
         ;;
       *) 
         val="yes"
         ;;
   esac
	
   case "$driver" in
      all)
         BECKMANNEGLE="yes"
         CRYSTALFONTZ="yes"
         CWLINUX="yes"
         HD44780="yes"
         M50530="yes"
         T6963="yes"
         USBLCD="yes"
         MATRIXORBITAL="yes"
         PALMPILOT="yes"
         PNG="yes"
         PPM="yes"
         TEXT="yes"
         X11="yes"
         ;;
      BeckmannEgle)
         BECKMANNEGLE=$val
         ;;
      CrystalFontz)
         CRYSTALFONTZ=$val
         ;;
      Cwlinux)
         CWLINUX=$val
         ;;
      HD44780)
         HD44780=$val
	 ;;
      M50530)
         M50530=$val
         ;;
      T6963)
         T6963=$val
         ;;
      USBLCD)
         USBLCD=$val
         ;;
      MatrixOrbital)
         MATRIXORBITAL=$val
         ;;
      PalmPilot)
         PALMPILOT=$val
         ;;
      PNG)
         PNG=$val
         ;;
      PPM)
         PPM=$val
         ;;
      SIN)
         SIN=$val
         ;;
      Skeleton)
         SKELETON=$val
         ;;
      Text)
         TEXT=$val
         ;;
      X11)
         X11=$val
         ;;
      *) 	
         AC_MSG_ERROR([Unknown driver '$driver'])
         ;;
   esac
done

AC_MSG_RESULT([done])

RASTER="no"
PARPORT="no"

if test "$BECKMANNEGLE" = "yes"; then
   DRIVERS="$DRIVERS BeckmannEgle.o"
   AC_DEFINE(WITH_BECKMANNEGLE,1,[junk])
fi

if test "$CRYSTALFONTZ" = "yes"; then
   DRIVERS="$DRIVERS Crystalfontz.o"
   AC_DEFINE(WITH_CRYSTALFONTZ,1,[junk])
fi

if test "$CWLINUX" = "yes"; then
   DRIVERS="$DRIVERS Cwlinux.o"
   AC_DEFINE(WITH_CWLINUX,1,[junk])
fi

if test "$HD44780" = "yes"; then
   PARPORT="yes"
   DRIVERS="$DRIVERS HD44780.o"
   AC_DEFINE(WITH_HD44780,1,[junk])
fi

if test "$M50530" = "yes"; then
   PARPORT="yes"
   DRIVERS="$DRIVERS M50530.o"
   AC_DEFINE(WITH_M50530,1,[junk])
fi

if test "$T6963" = "yes"; then
   PARPORT="yes"
   DRIVERS="$DRIVERS T6963.o"
   AC_DEFINE(WITH_T6963,1,[junk])
fi

if test "$USBLCD" = "yes"; then
   DRIVERS="$DRIVERS USBLCD.o"
   AC_DEFINE(WITH_USBLCD,1,[junk])
fi

if test "$MATRIXORBITAL" = "yes"; then
   DRIVERS="$DRIVERS MatrixOrbital.o"
   AC_DEFINE(WITH_MATRIXORBITAL,1,[junk])
fi

if test "$PALMPILOT" = "yes"; then
   DRIVERS="$DRIVERS PalmPilot.o"
   AC_DEFINE(WITH_PALMPILOT,1,[junk])
fi

if test "$PNG" = "yes"; then
   RASTER="yes"
   AC_DEFINE(WITH_PNG,1,[junk])
   DRVLIBS="$DRVLIBS -lgd"
fi

if test "$PPM" = "yes"; then
   RASTER="yes"
   AC_DEFINE(WITH_PPM,1,[junk])
fi

if test "$SIN" = "yes"; then
   DRIVERS="$DRIVERS SIN.o"
   AC_DEFINE(WITH_SIN,1,[junk])
fi

if test "$SKELETON" = "yes"; then
   DRIVERS="$DRIVERS Skeleton.o"
   AC_DEFINE(WITH_SKELETON,1,[junk])
fi

if test "$TEXT" = "yes"; then
   if test "$has_curses" = true; then
      DRIVERS="$DRIVERS Text.o"
      DRVLIBS="$DRVLIBS $CURSES_LIBS"
      CPPFLAGS="$CPPFLAGS $CURSES_INCLUDES"
      AC_DEFINE(WITH_TEXT,1,[junk])
   else
      AC_MSG_WARN(curses not found: Text driver disabled)
   fi   
fi

if test "$X11" = "yes"; then
   if test "$no_x" = "yes"; then
      AC_MSG_ERROR(X11 headers or libraries not available: X11 driver disabled)
   else
      DRIVERS="$DRIVERS XWindow.o"
      DRVLIBS="$DRVLIBS -L$ac_x_libraries -lX11"
      AC_DEFINE(WITH_X11,1,[junk])
   fi
fi

if test "$DRIVERS" = ""; then
   AC_MSG_ERROR([You should include at least one driver...])
fi
   
# Raster.o depends on PPM or PNG
if test "$RASTER" = "yes"; then
   DRIVERS="$DRIVERS Raster.o"
fi

# parport driver
if test "$PARPORT" = "yes"; then
   DRIVERS="$DRIVERS parport.o"
fi

AC_SUBST(DRIVERS)
AC_SUBST(DRVLIBS)

# Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([fcntl.h malloc.h netdb.h netinet/in.h stdlib.h string.h sys/ioctl.h sys/param.h sys/socket.h sys/time.h syslog.h termios.h unistd.h])
AC_CHECK_HEADERS(sys/io.h asm/io.h)
AC_CHECK_HEADERS(linux/parport.h linux/ppdev.h)
AC_CHECK_HEADERS(gd/gd.h gd.h)
AC_CHECK_HEADERS(net/if_ppp.h)
AC_CHECK_HEADERS(asm/msr.h)

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_TYPE_UID_T

# Checks for library functions.
AC_FUNC_ERROR_AT_LINE
AC_FUNC_FORK
AC_PROG_GCC_TRADITIONAL
AC_FUNC_MALLOC
AC_FUNC_MEMCMP
AC_FUNC_REALLOC
AC_FUNC_SELECT_ARGTYPES
AC_TYPE_SIGNAL
AC_FUNC_STAT
AC_CHECK_FUNCS([atexit dup2 gethostbyname gettimeofday memset putenv select socket strcasecmp strchr strdup strerror strpbrk strrchr strstr strtol uname])

AC_CONFIG_FILES([Makefile])
AC_OUTPUT