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

AC_PREREQ(2.59)
AC_INIT([LCD4Linux],[0.10.0],[reinelt@eunet.at])
AC_CONFIG_SRCDIR([lcd4linux.c])
AM_INIT_AUTOMAKE([lcd4linux],0.10.0)
AM_CONFIG_HEADER(config.h)

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
# Using `AC_PROG_RANLIB' is rendered 
# obsolete by `AC_PROG_LIBTOOL' :-(
AC_PROG_RANLIB
#AC_PROG_LIBTOOL

# dmalloc
AM_WITH_DMALLOC

# Checks for libraries.
AC_CHECK_LIB(m, log)

# curses
sinclude(curses.m4)
AC_CHECK_CURSES

# Checks for X11
AC_PATH_XTRA

# check for gd.h
AC_CHECK_HEADERS(gd/gd.h gd.h, [has_gd=true], [has_gd=false])

# 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, Curses, Cwlinux,]
  [                        HD44780, M50530, T6963, USBLCD, MatrixOrbital,]
  [                        MilfordInstruments, PalmPilot, PNG, PPM, X11],
  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 "$driver" in
      all)
         BECKMANNEGLE="yes"
         CRYSTALFONTZ="yes"
         CURSES="yes"
         CWLINUX="yes"
         HD44780="yes"
         M50530="yes"
         T6963="yes"
         USBLCD="yes"
         MATRIXORBITAL="yes"
         MILINST="yes"
         PALMPILOT="yes"
         PNG="yes"
         PPM="yes"
         X11="yes"
         ;;
      BeckmannEgle)
         BECKMANNEGLE=$val
         ;;
      CrystalFontz)
         CRYSTALFONTZ=$val
         ;;
      Curses)
         CURSES=$val
         ;;
      Cwlinux)
         CWLINUX=$val
         ;;
      HD44780)
         HD44780=$val
	 ;;
      M50530)
         M50530=$val
         ;;
      T6963)
         T6963=$val
         ;;
      USBLCD)
         USBLCD=$val
         ;;
      MatrixOrbital)
         MATRIXORBITAL=$val
         ;;
      MilfordInstruments)
         MILINST=$val
         ;;
      PalmPilot)
         PALMPILOT=$val
         ;;
      PNG)
         PNG=$val
         ;;
      PPM)
         PPM=$val
         ;;
      X11)
         X11=$val
         ;;
      *) 	
         AC_MSG_ERROR([Unknown driver '$driver'])
         ;;
   esac
done

AC_MSG_RESULT([done])

PARPORT="no"
SERIAL="no"
TEXT="no"
GRAPHIC="no"

if test "$BECKMANNEGLE" = "yes"; then
#  DRIVERS="$DRIVERS BeckmannEgle.lo"
#  DRIVERS="$DRIVERS BeckmannEgle.o"
   AC_DEFINE(WITH_BECKMANNEGLE,1,[Beckmann&Egle driver])
fi

if test "$CRYSTALFONTZ" = "yes"; then
   TEXT="yes"
   SERIAL="yes"
#  DRIVERS="$DRIVERS drv_Crystalfontz.lo"
   DRIVERS="$DRIVERS drv_Crystalfontz.o"
   AC_DEFINE(WITH_CRYSTALFONTZ,1,[Crystalfontz driver])
fi

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

if test "$CWLINUX" = "yes"; then
   TEXT="yes"
   SERIAL="yes"
#  DRIVERS="$DRIVERS drv_Cwlinux.lo"
   DRIVERS="$DRIVERS drv_Cwlinux.o"
   AC_DEFINE(WITH_CWLINUX,1,[CwLinux driver])
fi

if test "$HD44780" = "yes"; then
   TEXT="yes"
   PARPORT="yes"
#  DRIVERS="$DRIVERS drv_HD44780.lo"
   DRIVERS="$DRIVERS drv_HD44780.o"
   AC_DEFINE(WITH_HD44780,1,[HD44780 driver])
fi

if test "$M50530" = "yes"; then
   TEXT="yes"
   PARPORT="yes"
#  DRIVERS="$DRIVERS drv_M50530.lo"
   DRIVERS="$DRIVERS drv_M50530.o"
   AC_DEFINE(WITH_M50530,1,[M50530 driver])
fi

if test "$T6963" = "yes"; then
   GRAPHIC="yes"
   PARPORT="yes"
#  DRIVERS="$DRIVERS drv_T6963.lo"
   DRIVERS="$DRIVERS drv_T6963.o"
   AC_DEFINE(WITH_T6963,1,[T6963 driver])
fi

if test "$USBLCD" = "yes"; then
   TEXT="yes"
   SERIAL="yes"
#  DRIVERS="$DRIVERS drv_USBLCD.lo"
   DRIVERS="$DRIVERS drv_USBLCD.o"
   AC_DEFINE(WITH_USBLCD,1,[USBLCD driver])
fi

if test "$MATRIXORBITAL" = "yes"; then
   SERIAL="yes"
#  DRIVERS="$DRIVERS drv_MatrixOrbital.lo"
   DRIVERS="$DRIVERS drv_MatrixOrbital.o"
   AC_DEFINE(WITH_MATRIXORBITAL,1,[MatrixOrbital driver])
fi

if test "$MILINST" = "yes"; then
#  DRIVERS="$DRIVERS MilfordInstruments.lo"
#  DRIVERS="$DRIVERS MilfordInstruments.o"
   AC_DEFINE(WITH_MILINST,1,[Milford Instruments driver])
fi

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

if test "$PNG" = "yes"; then
   if test "$has_gd" = "true"; then
      GRAPHIC="yes"
      AC_DEFINE(WITH_PNG,1,[ driver])
      DRVLIBS="$DRVLIBS -lgd"
   else
      AC_MSG_WARN(gd.h not found: PNG driver disabled)
   fi
fi

if test "$PPM" = "yes"; then
   if test "$has_gd" = "true"; then
      GRAPHIC="yes"
      AC_DEFINE(WITH_PPM,1,[ driver])
   else
      AC_MSG_WARN(gd.h not found: PNG driver disabled)
   fi
fi

if test "$X11" = "yes"; then
   if test "$no_x" = "yes"; then
      AC_MSG_WARN(X11 headers or libraries not available: X11 driver disabled)
   else
      GRAPHIC="yes"
#     DRIVERS="$DRIVERS drv_X11.lo"
      DRIVERS="$DRIVERS drv_X11.o"
      DRVLIBS="$DRVLIBS -L$ac_x_libraries -lX11"
      AC_DEFINE(WITH_X11,1,[X11 driver])
   fi
fi

if test "$DRIVERS" = ""; then
   AC_MSG_ERROR([You should include at least one driver...])
fi
   
# generic text driver
if test "$TEXT" = "yes"; then
#  DRIVERS="$DRIVERS drv_generic_text.lo"
   DRIVERS="$DRIVERS drv_generic_text.o"
fi

# generic graphic driver
if test "$GRAPHIC" = "yes"; then
:
#  DRIVERS="$DRIVERS 
   DRIVERS="$DRIVERS drv_generic_graphic.o"
fi

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

# generic serial driver
if test "$SERIAL" = "yes"; then
#  DRIVERS="$DRIVERS drv_generic_serial.lo"
   DRIVERS="$DRIVERS drv_generic_serial.o"
fi

AC_SUBST(DRIVERS)
AC_SUBST(DRVLIBS)

# Checks for header files.
AC_HEADER_STDC
AC_HEADER_DIRENT
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([arpa/inet.h fcntl.h malloc.h netdb.h netinet/in.h stdlib.h string.h sys/ioctl.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(linux/dvb/frontend.h)
AC_CHECK_HEADERS(net/if_ppp.h)
AC_CHECK_HEADERS(asm/msr.h)
AC_CHECK_HEADERS(mysql/mysql.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_CLOSEDIR_VOID
AC_FUNC_ERROR_AT_LINE
AC_FUNC_FORK
AC_PROG_GCC_TRADITIONAL

# uClibc has no getloadavg()
# AC_FUNC_GETLOADAVG sounds promising, but does not really work
#AC_FUNC_GETLOADAVG

#removed for uClibc compatibility
#AC_FUNC_MALLOC
#AC_FUNC_REALLOC

AC_FUNC_MEMCMP
AC_FUNC_SELECT_ARGTYPES
AC_TYPE_SIGNAL
AC_FUNC_STAT
AC_FUNC_STRTOD
AC_CHECK_FUNCS([dup2 gethostbyname gettimeofday memmove memset pow putenv regcomp select socket sqrt strcasecmp strchr strdup strerror strncasecmp strndup strpbrk strrchr strstr strtol uname])

AC_CONFIG_FILES([Makefile])
AC_OUTPUT