dnl# $Id$

AC_INIT(src/feature.h)
AM_INIT_AUTOMAKE(Eterm, 0.9.1)

dnl# Set some basic variables
DATE="`date '+%d %B %Y'`"
AC_SUBST(DATE)
AUTHORS="Michael Jennings (mej@eterm.org) "
AC_SUBST(AUTHORS)
AC_DEFINE_UNQUOTED(AUTHORS, "$AUTHORS")

dnl# Supply default CFLAGS, if not specified by `CFLAGS=flags ./configure'
if test ! -z "${CFLAGS}" -o ! -z "${CCOPTS}"; then
  CFLAGS_GIVEN=1
else
  CFLAGS_GIVEN=0
fi

if test -z "${CFLAGS}"; then
    if test -z "${CCOPTS}"; then
	CCOPTS="-O"
    fi
    CFLAGS="$CCOPTS"
fi

AC_ARG_WITH(cc, [  --with-cc=compiler      force Eterm to build with a particular compiler (like pgcc, egcs, etc.)],
            CC=$withval, 
  if test -z "$CC"; then
    CC=check
  fi
)

if test "$CC" = "check"; then
  dnl# Check for Pentium compiler
  AC_CHECK_PROG(PGCC, pgcc, pgcc)

  if test ! -z "$PGCC"; then
    CC=$PGCC
  else
    unset CC
  fi
fi

AC_PROG_CC
AC_PROG_CPP

dnl# These must be run after AC_PROG_CC but before any other macros that use
dnl# the C compiler
AC_AIX
AC_ISC_POSIX
AC_MINIX

dnl# At least make the attempt to support CygWin32
AC_CYGWIN
AC_ARG_PROGRAM

AM_PROG_LIBTOOL

dnl# Where are we?
AC_MSG_CHECKING(for distribution root)
DIST_ROOT=`pwd`
AC_SUBST(DIST_ROOT)
AC_MSG_RESULT($DIST_ROOT)

AC_GCC_TRADITIONAL

dnl # If using gcc, use -O2.  If -g works with it, use that too
if test "${CFLAGS_GIVEN}" -ne 1; then
    if test "$GCC" = "yes"; then
	if test "$ac_cv_prog_cc_g" = "yes"; then
	    CCOPTS='-g -O2'
	else
	    CCOPTS='-O2'
	fi
	CFLAGS="$CCOPTS"
    fi
fi

AC_PROG_INSTALL

dnl# Check for host system type
AC_CANONICAL_HOST

dnl# Check the sanity of what we've done so far
AM_SANITY_CHECK

dnl# Most people don't want the developer-only clutter
AM_MAINTAINER_MODE

dnl# If it's there, what the hell?
AM_WITH_DMALLOC

dnl# Look for needed programs
AC_CHECK_PROG(SED, sed, sed, false)
AC_CHECK_PROG(RM, rm, rm, true)
AC_CHECK_PROG(CP, cp, cp, false)
AC_CHECK_PROG(CHMOD, chmod, chmod, true)
AC_CHECK_PROG(TAR, tar, tar, tar)
AC_CHECK_PROG(MKDIR, mkdir, mkdir, false)
AC_CHECK_PROG(CTAGS, ctags, ctags, true)
AC_CHECK_PROG(AR, ar, ar, false)
AC_CHECK_PROG(MV, mv, mv, true)
AC_CHECK_PROG(TIC, tic, tic, true)
AC_LN_S
AC_PATH_PROG(PERL, perl, /usr/bin/perl, $PATH:/usr/bin:/bin:/usr/local/bin:/usr/ccs/bin:/usr/contrib/bin)
AC_PATH_PROG(AWK, awk, /usr/bin/awk, $PATH:/usr/bin:/bin:/usr/local/bin:/usr/ccs/bin:/usr/contrib/bin)
export PERL AWK

AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(void *, 4)
AC_CHECK_SIZEOF(long long, 8)
dnl AC_C_BIGENDIAN

AC_C_CONST
AC_C_INLINE
AC_PATH_XTRA

if test "$ac_cv_lib_socket_connect" = "yes" ; then
  SUBLIBS="-lsocket"
fi
if test "$ac_cv_lib_nsl_gethostbyname" = "yes" ; then
  SUBLIBS="$SUBLIBS -lnsl"
fi

dnl# Checks for header files.
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(fcntl.h termios.h \
sys/ioctl.h sys/select.h sys/time.h \
sys/sockio.h sys/byteorder.h \
utmpx.h unistd.h bsd/signal.h regex.h \
regexp.h stdarg.h X11/Xmu/Atoms.h)
AC_HEADER_TIME

dnl# Missing typedefs and replacements
AC_TYPE_MODE_T
AC_CHECK_TYPE(off_t, long)
AC_TYPE_PID_T
AC_TYPE_UID_T

dnl# Checks for library functions.
AC_TYPE_SIGNAL
AC_CHECK_FUNCS(atexit _exit unsetenv setutent seteuid memmove putenv strsep setresuid setresgid memmem usleep snprintf)
dps_snprintf_oflow()

dnl# Check for the need for -lutil on BSD systems
AC_CHECK_FUNC(login, 
  AC_DEFINE(HAVE_LOGIN)
, AC_CHECK_LIB(util, login, LIBS="$LIBS -lutil" ;
  AC_DEFINE(HAVE_LOGIN)
))
AC_CHECK_FUNC(logout, 
  AC_DEFINE(HAVE_LOGOUT)
, AC_CHECK_LIB(util, logout, LIBS="$LIBS -lutil" ;
  AC_DEFINE(HAVE_LOGOUT)
))
AC_CHECK_FUNC(getpwuid, , AC_CHECK_LIB(sun, getpwuid, LIBS="$LIBS -lsun"))

dnl#
dnl# Utility stuff
dnl#
dnl# Did they want debugging?
AC_MSG_CHECKING(for debugging level)
AC_ARG_WITH(debugging, [  --with-debugging[=num]  enable debugging output, num is an optional level],
              if test "$withval" = "yes"; then
                  withval=4
              else
                  :
              fi
              if test "$withval" != "no"; then 
                  echo "$withval"
                  AC_DEFINE_UNQUOTED(DEBUG, $withval)
              else
                  echo "no debugging"
              fi, echo "4"
                  AC_DEFINE_UNQUOTED(DEBUG, 4)
)

AC_CHECK_FUNC(ptsname,
              HAVE_PTSNAME=yes
             )
AC_CHECK_FUNC(grantpt,
              HAVE_GRANTPT=yes
             )
AC_CHECK_FUNC(unlockpt,
              HAVE_UNLOCKPT=yes
             )
dnl# Check for the appropriate pty mechanism
AC_MSG_CHECKING(for pty mechanism)
PTY_MECH=""
if test -c /dev/ptc ; then
  AC_DEFINE(HAVE_DEV_PTC)
  PTY_MECH="AIX $PTY_MECH"
fi
if test -r /dev/ptmx -a ! -z "$HAVE_PTSNAME" -a ! -z "$HAVE_GRANTPT" -a ! -z "$HAVE_UNLOCKPT"; then
  AC_DEFINE(HAVE_DEV_PTMX)
  PTY_MECH="SVR4 $PTY_MECH"
fi
if test -c /dev/ptyp128 ; then
  AC_DEFINE(HAVE_SCO_PTYS)
  PTY_MECH="SCO $PTY_MECH"
fi
if test "X$PTY_MECH" = "X"; then
  AC_MSG_RESULT(generic pty's only)
else
  AC_MSG_RESULT($PTY_MECH)
fi
AC_MSG_CHECKING(for pty group)
AC_ARG_WITH(pty-group,
[  --with-pty-group[=gid]  specify the group that should own pty files],
            if test "$withval" = "yes"; then 
              PTY_GRP_NAME=`ls -1l /dev/pty* 2>/dev/null | head -n 1 | awk '{print $4}'`
              if test ! -z "$PTY_GRP_NAME"; then
                AC_MSG_RESULT($PTY_GRP_NAME)
                AC_DEFINE_UNQUOTED(PTY_GRP_NAME, "$PTY_GRP_NAME")
              else
                AC_MSG_RESULT(unable to determine.  This feature will not be enabled.)
              fi
            elif test "$withval" = "no"; then
              AC_MSG_RESULT(none)
            else
              AC_MSG_RESULT($withval)
              AC_DEFINE_UNQUOTED(PTY_GRP_NAME, "$withval")
            fi
            ,
            PTY_GRP_NAME=`ls -1l /dev/pty* 2>/dev/null | head -n 1 | awk '{print $4}'`
            if test ! -z "$PTY_GRP_NAME"; then
              AC_MSG_RESULT($PTY_GRP_NAME)
              AC_DEFINE_UNQUOTED(PTY_GRP_NAME, "$PTY_GRP_NAME")
            else
              AC_MSG_RESULT(none)
            fi
)

dnl#
dnl# FEATURES
dnl#
AC_MSG_CHECKING(if Pablo support is wanted)
AC_ARG_WITH(pablo,
[  --with-pablo[=DIR]      compile with Pablo I/O Tracing support (using Pablo prefix DIR)],
            if test "$withval" != "no"; then 
              AC_MSG_RESULT(yes)
              if test "$withval" != "yes"; then
                CPPFLAGS="$CPPFLAGS -I${withval}/include"
                LDFLAGS="$LDFLAGS -L${withval}/lib"
              fi
              AC_CHECK_HEADER(IOTrace.h, 
                              AC_CHECK_LIB(PabloTraceExt, initIOTrace,
                                           AC_DEFINE(IOTRACE)
                                           LIBS="$LIBS -lPabloTraceExt -lPabloTrace"
                                           echo "Pablo support enabled.  Headers in ${withval}/include.  Libraries in ${withval}/lib."
                                           , 
                                           echo "*** ERROR:  Pablo support was requested but the Pablo libraries could not be"
                                           echo "***         found.  Please check config.log for further information."
                                           echo "***         Pablo support will NOT be included."
                                           , -lPabloTrace)
                              ,
                              echo "*** ERROR:  Pablo support was requested but the Pablo header files could not be"
                              echo "***         found.  Please check the value you passed to --with-pablo."
                              echo "***         Pablo support will NOT be included.")
            else
              AC_MSG_RESULT(no)
            fi, AC_MSG_RESULT(no)
)
AC_MSG_CHECKING(if profiling macros should be included)
AC_ARG_ENABLE(profile,
[  --enable-profile        compile with code profiling macros enabled],
            if test "$enableval" = "yes"; then 
              AC_MSG_RESULT(yes)
              AC_DEFINE(ENABLE_PROFILE)
            else
              AC_MSG_RESULT(no)
            fi, AC_MSG_RESULT(no)
)
AC_MSG_CHECKING(for pixmap support)
AC_ARG_WITH(imlib,
[  --with-imlib[=DIR]      compile with Imlib support (Imlib residing in DIR/lib) (default)],
            if test "$withval" != "no"; then 
              AC_MSG_RESULT(yes)
              CFLAGS="$CFLAGS -I${withval}/include -L${withval}/lib"
              GRLIBS="-lImlib"
              AC_DEFINE(PIXMAP_SUPPORT)
              AC_DEFINE(BACKING_STORE)
            else
              AC_MSG_RESULT(no)
              GRLIBS=""
            fi, AC_MSG_RESULT(yes)
                GRLIBS="-lImlib"
                AC_DEFINE(PIXMAP_SUPPORT)
                AC_DEFINE(BACKING_STORE)
)
AC_MSG_CHECKING(for transparency support)
AC_ARG_ENABLE(trans,
[  --enable-trans[=imlib]  compile with transparency support (\"=imlib\" will use Imlib instead of Xlib for transparency)],
            if test "$enableval" = "imlib"; then 
              AC_MSG_RESULT(yes, using Imlib)
              AC_DEFINE(PIXMAP_OFFSET)
              AC_DEFINE(IMLIB_TRANS)
            elif test "$enableval" != "no"; then 
              AC_MSG_RESULT(yes)
              AC_DEFINE(PIXMAP_OFFSET)
            else
              AC_MSG_RESULT(no)
            fi, AC_MSG_RESULT(yes)
                AC_DEFINE(PIXMAP_OFFSET)
)
AC_MSG_CHECKING(for utmp support)
AC_ARG_ENABLE(utmp,
[  --enable-utmp           compile with utmp support],
            if test "$enableval" != "no"; then 
              AC_MSG_RESULT(yes)
              UTMP=1
              AC_DEFINE(UTMP_SUPPORT)
            else
              AC_MSG_RESULT(no)
              UTMP=0
            fi, AC_MSG_RESULT(yes)
                AC_DEFINE(UTMP_SUPPORT)
                UTMP=1
)
if test $UTMP -eq 1; then
  AC_CHECK_LIB(utempter, addToUtmp,
               AC_DEFINE(HAVE_UTEMPTER)
               LIBS="$LIBS -lutempter"
              )
fi
AC_MSG_CHECKING(for backspace key configuration)
AC_ARG_WITH(backspace,
[  --with-backspace=KEY    force backspace to send KEY (KEY is either \"bs\" for ^H or \"del\" for ^?)],
            if test "$withval" = "bs"; then 
              AC_MSG_RESULT(forcing Backspace to send Ctrl-H)
              AC_DEFINE(FORCE_BACKSPACE)
            elif test "$withval" = "del"; then 
              AC_MSG_RESULT(forcing Backspace to send Ctrl-?)
              AC_DEFINE(FORCE_DELETE)
            else
              AC_MSG_RESULT(default)
            fi, AC_MSG_RESULT(default)
)
AC_MSG_CHECKING(for delete key configuration)
AC_ARG_WITH(delete,
[  --with-delete=SETTING   force delete to SETTING (\"server\" to use the X server value always,
                          \"execute\" to send the old default execute escape sequence,
                          or a quoted string to use a specific string)],
            if test "$withval" = "server"; then
              AC_MSG_RESULT(X server value)
              AC_DEFINE(NO_DELETE_KEY)
            elif test "$withval" = "no"; then
              AC_MSG_RESULT(X server value)
              AC_DEFINE(NO_DELETE_KEY)
            elif test "$withval" = "execute"; then
              AC_MSG_RESULT(send execute sequence)
            else
              AC_MSG_RESULT(forcing Delete to send "$withval")
              AC_DEFINE_UNQUOTED(KS_DELETE, "$withval")
            fi, AC_MSG_RESULT(default)
                AC_DEFINE_UNQUOTED(KS_DELETE, "\177")
)
XTERM_HOME="\033\133H"
LINUX_HOME="\033\1331~"
AC_MSG_CHECKING(for home key configuration)
AC_ARG_WITH(home,
[  --with-home=SEQUENCE    specify which sequence to use for the Home key ("xterm", "linux", or "vt102")],
            if test "$withval" = "xterm"; then 
              AC_MSG_RESULT(emulate xterm)
              AC_DEFINE_UNQUOTED(KS_HOME, "$XTERM_HOME")
            elif test "$withval" = "linux"; then 
              AC_MSG_RESULT(emulate linux console/vt220)
              AC_DEFINE_UNQUOTED(KS_HOME, "$LINUX_HOME")
            else
              AC_MSG_RESULT(default vt102)
            fi, AC_MSG_RESULT(default)
)
XTERM_END="\033\133F"
LINUX_END="\033\1334~"
AC_MSG_CHECKING(for end key configuration)
AC_ARG_WITH(end,
[  --with-end=SEQUENCE     specify which sequence to use for the End key ("xterm", "linux", or "vt102")],
            if test "$withval" = "xterm"; then 
              AC_MSG_RESULT(emulate xterm)
              AC_DEFINE_UNQUOTED(KS_END, "$XTERM_END")
            elif test "$withval" = "linux"; then 
              AC_MSG_RESULT(emulate linux console/vt220)
              AC_DEFINE_UNQUOTED(KS_END, "$LINUX_END")
            else
              AC_MSG_RESULT(default vt102)
            fi, AC_MSG_RESULT(default)
)
MULTICHAR_ENCODING=""
AC_MSG_CHECKING(for multi-charset support)
AC_ARG_ENABLE(multi-charset,
[  --enable-multi-charset  compile with multi-charset support],
            if test "$enableval" = "yes" -o "$enableval" = "kanji"; then 
              AC_MSG_RESULT(kanji)
              AC_DEFINE(MULTI_CHARSET)
	      DEF_FONT_IDX=0
	      MULTICHAR_ENCODING="eucj"
	      FONT0="fixed"
              FONT1="8x16"
              FONT2="9x18"
              FONT3="12x24"
              FONT4="13x26"
	      MFONT0="k14"
              MFONT1="jiskan16"
              MFONT2="jiskan18"
              MFONT3="jiskan24"
              MFONT4="jiskan26"
            elif test "$enableval" = "euc-kr" -o "$enableval" = "euckr"; then 
              AC_MSG_RESULT(euckr)
              AC_DEFINE(MULTI_CHARSET)
	      DEF_FONT_IDX=1
	      MULTICHAR_ENCODING="euckr"
	      FONT0="7x14"
	      FONT1="8x16"
	      FONT2="9x18"
	      FONT3="10x20"
	      FONT4="12x24"
	      MFONT0="-*-gulim-medium-r-normal--14-*-*-*-*-140-ksc5601.1987-0"
	      MFONT1="-*-gulim-medium-r-normal--16-*-*-*-*-160-ksc5601.1987-0"
	      MFONT2="-*-gulim-medium-r-normal--18-*-*-*-*-180-ksc5601.1987-0"
	      MFONT3="-*-gulim-medium-r-normal--20-*-*-*-*-200-ksc5601.1987-0"
	      MFONT4="-*-gulim-medium-r-normal--24-*-*-*-*-240-ksc5601.1987-0"
            elif test "$enableval" = "utf-8" -o "$enableval" = "utf8"; then 
              AC_MSG_RESULT(utf-8)
              AC_DEFINE(MULTI_CHARSET)
              DEF_FONT_IDX=2
	      MULTICHAR_ENCODING="utf8"
              MFONT0="-misc-fixed-medium-r-normal--7-70-75-75-c-50-iso10646-1"
              MFONT1="-misc-fixed-medium-r-normal--10-100-75-75-c-60-iso10646-1"
              MFONT2="-misc-fixed-medium-r-semicondensed--13-120-75-75-c-60-iso10646-1"
              MFONT3="-misc-fixed-medium-r-normal--14-130-75-75-c-70-iso10646-1"
              MFONT4="-misc-fixed-medium-r-normal--15-140-75-75-c-90-iso10646-1"
              FONT0="5x7"
              FONT1="6x10"
              FONT2="fixed"
              FONT3="8x13"
              FONT4="9x15"
            elif test "$enableval" = "no"; then
              AC_MSG_RESULT(no)
              DEF_FONT_IDX=2
              FONT0="5x7"
              FONT1="6x10"
              FONT2="fixed"
              FONT3="8x13"
              FONT4="9x15"
            else
              AC_ERROR(invalid value for --enable-multi-charset)
            fi, AC_MSG_RESULT(no)
                DEF_FONT_IDX=2
  	        MULTICHAR_ENCODING=none
                MFONT0=none
                MFONT1=none
                MFONT2=none
                MFONT3=none
                MFONT4=none
                FONT0="5x7"
                FONT1="6x10"
                FONT2="fixed"
                FONT3="8x13"
                FONT4="9x15"
)

AC_DEFINE_UNQUOTED(DEF_FONT_IDX, $DEF_FONT_IDX)
AC_DEFINE_UNQUOTED(FONT0, "$FONT0")
AC_DEFINE_UNQUOTED(FONT1, "$FONT1")
AC_DEFINE_UNQUOTED(FONT2, "$FONT2")
AC_DEFINE_UNQUOTED(FONT3, "$FONT3")
AC_DEFINE_UNQUOTED(FONT4, "$FONT4")
AC_SUBST(DEF_FONT_IDX)
AC_SUBST(FONT0)
AC_SUBST(FONT1)
AC_SUBST(FONT2)
AC_SUBST(FONT3)
AC_SUBST(FONT4)
export FONT0 FONT1 FONT2 FONT3 FONT4 DEF_FONT_IDX

AC_DEFINE_UNQUOTED(MULTICHAR_ENCODING, "$MULTICHAR_ENCODING")
AC_DEFINE_UNQUOTED(MFONT0, "$MFONT0")
AC_DEFINE_UNQUOTED(MFONT1, "$MFONT1")
AC_DEFINE_UNQUOTED(MFONT2, "$MFONT2")
AC_DEFINE_UNQUOTED(MFONT3, "$MFONT3")
AC_DEFINE_UNQUOTED(MFONT4, "$MFONT4")
AC_SUBST(MULTICHAR_ENCODING)
AC_SUBST(MFONT0)
AC_SUBST(MFONT1)
AC_SUBST(MFONT2)
AC_SUBST(MFONT3)
AC_SUBST(MFONT4)
export MFONT0 MFONT1 MFONT2 MFONT3 MFONT4 MULTICHAR_ENCODING

AC_MSG_CHECKING(for XIM support)
AC_ARG_ENABLE(xim,
[  --enable-xim            compile with XIM support (default)],
            if test "$enableval" = "no"; then 
              AC_MSG_RESULT(no)
	      XIM="FALSE"
            else
              AC_MSG_RESULT(yes)
	      AC_DEFINE(USE_XIM)
	      XIM="TRUE"
            fi, AC_MSG_RESULT(yes)
	        AC_DEFINE(USE_XIM)
	        XIM="TRUE"
)

AC_MSG_CHECKING(for Greek keyboard support)
AC_ARG_ENABLE(greek,
[  --enable-greek          compile with support for Greek keyboards],
            if test "$enableval" = "yes"; then 
              AC_MSG_RESULT(yes)
              AC_DEFINE(GREEK_SUPPORT)
            else
              AC_MSG_RESULT(no)
            fi, AC_MSG_RESULT(no)
)

CONFIG_BUFF_SIZE=20480
AC_MSG_CHECKING(for the buffer size of the config file parser)
AC_ARG_WITH(config-buffer-size,
[  --config-buffer-size    specifies the size of the buffer Eterm uses for parsing the config file (default is 20 Kb)],
            if test "$withval" != "yes" -a "$withval" != "no"; then
              CONFIG_BUFF_SIZE=$withval
            fi)
AC_MSG_RESULT($CONFIG_BUFF_SIZE bytes)
AC_DEFINE_UNQUOTED(CONFIG_BUFF, $CONFIG_BUFF_SIZE)

AC_ARG_WITH(terminfo,
[  --without-terminfo      do not compile the Eterm terminfo file],
            if test "$withval" = "yes"; then 
              :
            else
              TIC=true
            fi)

AC_ARG_WITH(theme-update,
[  --with-theme-update     existing themes will be forceably removed and new ones installed],
            if test "$withval" = "yes"; then 
              REMOVE_THEMES=yes
            else
              REMOVE_THEMES=no
            fi, REMOVE_THEMES=no
)
AC_SUBST(REMOVE_THEMES)

dnl# AC_MSG_CHECKING(which threads library to use)
dnl# AC_ARG_WITH(threads,
dnl# [  --with-threads[=STYLE]  compile with threads support, STYLE is either "posix" or blank
dnl#                           (disabled by default)],
dnl#             case $withval in
dnl#               [yes | posix )]
dnl#                 AC_MSG_RESULT(POSIX)
dnl#                 THREADS_LIB=posix
dnl#                 ;;
dnl#               [* )]
dnl#                 AC_MSG_RESULT(none)
dnl#                 ;;
dnl#             esac
dnl#  , AC_MSG_RESULT(none))
dnl# if test "$THREADS_LIB" = "posix"; then
dnl#   AC_CHECK_LIB(pthread, pthread_create, CFLAGS="$CFLAGS -D_REENTRANT" ; THREADLIBS="-lpthread"
dnl#                                        AC_DEFINE(USE_POSIX_THREADS)
dnl#                                        AC_DEFINE(MUTEX_SYNCH)
dnl#                , , -D_REENTRANT -L/usr/lib -L/lib -L/usr/local/lib)
dnl# fi

dnl#
dnl# X LIBRARIES
dnl#
AC_CHECK_LIB(X11, XOpenDisplay, X_LIBS="$X_LIBS -lX11", [
echo "ERROR:  You need libX11 to build Eterm.  Verify that you have libX11.a or";
echo "        libX11.so installed and that it is located in the X libraries";
echo "        directory shown above.  If it is in a different directory, try using";
echo "        the --x-libraries parameter to configure.";
             AC_MSG_ERROR([Fatal:  libX11 not found.])], $X_LIBS $SUBLIBS)
AC_CHECK_LIB(Xext, XextAddDisplay, X_LIBS="-lXext $X_LIBS", [
echo "ERROR:  You need libXext to build Eterm.  Verify that you have libXext.a or";
echo "        libXext.so installed and that it is located in the X libraries";
echo "        directory shown above.  If it is in a different directory, try using";
echo "        the --x-libraries parameter to configure.";
             AC_MSG_ERROR([Fatal:  libXext not found.])], $X_LIBS $SUBLIBS)

AC_CHECK_LIB(Xext, XShapeQueryExtension, AC_DEFINE(HAVE_X_SHAPE_EXT), , $X_LIBS $SUBLIBS)

# check if we need X_LOCALE definition
AC_CHECK_LIB(X11, _Xsetlocale, , AC_DEFINE(NO_XLOCALE), $X_LIBS $SUBLIBS)

# For multibyte selection handling
if test "$MULTICHAR_ENCODING" != "none"; then
  AC_CHECK_LIB(Xmu, XmuInternAtom, X_LIBS="-lXmu $X_LIBS", , $X_LIBS $SUBLIBS)
fi

# check X11R6 for XIM
if test "$XIM" = "TRUE"; then
  AC_CHECK_LIB(X11, XRegisterIMInstantiateCallback, AC_DEFINE(USE_X11R6_XIM), , $X_LIBS $SUBLIBS)
fi

if test -z "$PIXMAPSED"; then

  AC_CHECK_PROG(IMLIB_CONFIG, imlib-config, imlib-config, no)

  if test "$IMLIB_CONFIG" != "no"; then

    if test "$prefix" = "NONE"; then
      AC_MSG_CHECKING(imlib-config for prefix)
      prefix="`$IMLIB_CONFIG --prefix`"
      AC_MSG_RESULT($prefix)
    fi

    AC_MSG_CHECKING(imlib-config for the value of CFLAGS)
    CFLAGS="$CFLAGS `$IMLIB_CONFIG --cflags`"
    AC_MSG_RESULT($CFLAGS)

    AC_MSG_CHECKING(imlib-config for the value of GRLIBS)
    GRLIBS="$GRLIBS `$IMLIB_CONFIG --libs`"
    AC_MSG_RESULT($GRLIBS)

    SAVE_LIBS="$LIBS"
    LIBS="$GRLIBS"

    AC_MSG_CHECKING(the sanity of new compile/link flags)
    AC_TRY_LINK(, , echo "yes", echo "no" ; IMLIB_CONFIG="no" ; 
                AC_WARN(Compile/link failed.  Reverting to manual method.)
    )

    LIBS="$SAVE_LIBS"

  fi

  if test "$IMLIB_CONFIG" = "no"; then

    AC_CHECK_LIB(png, png_get_valid, GRLIBS="$GRLIBS -lpng -lz -lm", ,
                 $SUBLIBS $X_LIBS -lz -lm)
    AC_CHECK_LIB(jpeg, jpeg_read_scanlines, GRLIBS="$GRLIBS -ljpeg", ,
                 $SUBLIBS $X_LIBS)
    AC_CHECK_LIB(tiff, TIFFOpen, GRLIBS="$GRLIBS -ltiff", ,
                 $SUBLIBS $X_LIBS -lm)
    AC_CHECK_LIB(gif, DGifOpenFileName, GRLIBS="$GRLIBS -lgif", ,
                 $SUBLIBS $X_LIBS)
    AC_CHECK_LIB(ungif, DGifOpenFileName, GRLIBS="$GRLIBS -lungif", ,
                 $SUBLIBS $X_LIBS)
    AC_CHECK_LIB(Imlib, Imlib_init, , [
                 echo "WARNING:  Imlib was not found or did not correctly link.";
                 echo "          Please check config.log to see what the error was.";
                 echo "          I will attempt to continue, but things may go wrong.";
                 AC_MSG_WARN([WARNING:  libImlib not found.  Attempting to continue anyway.])],
                 $GRLIBS $SUBLIBS $X_LIBS)

  fi

fi

AC_PREFIX(Eterm)
AC_PREFIX(gcc)
if test "$prefix" = "NONE"; then
  prefix=$ac_default_prefix
fi
if test "$exec_prefix" = "NONE"; then
  exec_prefix=$prefix
fi

dnl Stack Tracing toys
AC_ARG_ENABLE(stack-trace, [  --disable-stack-trace   disable stack trace on abnormal termination],
  if test "$enableval" = "no"; then
    AC_DEFINE(NO_STACK_TRACE)
    NO_STACK_TRACE=1
  fi
)

if test "$NO_STACK_TRACE" != "1"; then
  AC_PATH_PROG(DBX, dbx, no)
  if test "$DBX" != "no"; then
    AC_DEFINE_UNQUOTED(DBX, "$DBX")
  fi
  AC_PATH_PROG(GDB, gdb, no)
  if test "$GDB" != "no"; then
    AC_DEFINE_UNQUOTED(GDB, "$GDB")
  fi
  AC_PATH_PROG(PSTACK, pstack, no, $PATH:/usr/proc/bin:/usr/sbin)
  if test "$PSTACK" != "no"; then
    AC_DEFINE_UNQUOTED(PSTACK, "$PSTACK")
  fi
  AC_CHECK_LIB(cl, U_STACK_TRACE, LIBS="$LIBS -lcl")
fi

AC_MSG_CHECKING(for Linux 2.1 or higher)
OS_NAME=`uname -s`
if test "$OS_NAME" = "Linux"; then
  OS_REV=`uname -r`
  OS_MAJOR=`echo $OS_REV | cut -d. -f1`
  OS_MINOR=`echo $OS_REV | cut -d. -f2`
  if test "$OS_MAJOR" -ge "2" -a "$OS_MINOR" -ge "1"; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(NEED_LINUX_HACK)
  else
    AC_MSG_RESULT(no)
  fi
else
  AC_MSG_RESULT(no)
fi

dnl# Enable/disable humor
AC_ARG_WITH(sense-of-humor, [  --without-sense-of-humor   Specify this if you have no sense of humor],
            if test "$withval" = "no"; then
              HUMOR=none
            fi)

if test -z "$HUMOR"; then
AC_CHECK_LIB(Kenny, life_signs, , [
  echo "  Oh my god, they killed Kenny!  You bastards!"
])
fi

CONFIG_SEARCH_PATH=`eval eval eval eval eval echo "${datadir}/$PACKAGE/themes:${datadir}/$PACKAGE"`
AC_DEFINE_UNQUOTED(CONFIG_SEARCH_PATH, "~/.Eterm/themes:~/.Eterm:$CONFIG_SEARCH_PATH")
# Do replacements on theme files and such.  All variables to be replaced
# by this routine MUST be exported before the awk script runs.
if test "X$PKGDATADIR" = "X" ; then
  PKGDATADIR=`eval eval eval eval echo "$datadir/$PACKAGE"`
fi
export PKGDATADIR
AC_DEFINE_UNQUOTED(PKGDATADIR, "$PKGDATADIR")

CFLAGS=${CFLAGS--O}
LDFLAGS=${LDFLAGS--O}

CPPFLAGS="$CPPFLAGS"
AC_SUBST(CC)
AC_SUBST(CFLAGS)
AC_SUBST(CPPFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(LIBS)
AC_SUBST(THREADLIBS)
AC_SUBST(GRLIBS)

basedir=.

AM_CONFIG_HEADER(config.h)

AC_OUTPUT(Makefile bg/Makefile doc/Makefile utils/Makefile libmej/Makefile
          pix/Makefile src/Makefile themes/Makefile Eterm.spec)

# Mega evals to make sure all the relative variables get resolved.
BINDIR=`eval eval eval eval echo ${bindir}`
export BINDIR bindir prefix exec_prefix datadir PACKAGE

changequote(%&, &%)dnl
%&
for i in utils/kEsetroot themes/Eterm/theme.cfg themes/auto/theme.cfg themes/cEterm/theme.cfg \
         themes/chooser/theme.cfg themes/emacs/theme.cfg themes/irc/theme.cfg themes/mutt/theme.cfg \
         themes/trans/theme.cfg ; do
  echo creating $i
  $AWK '{if (match($0,/@[A-Za-z0-9_]*@/)) {
           i=ENVIRON[substr($0,RSTART+1,RLENGTH-2)];
           outp=$0;
           gsub(/@[A-Za-z0-9_]*@/,i,outp);
           print outp;
         } else {
           print $0;
         }
        }' $i.in > $i
done
&%
changequote([, ])dnl

dnl If we're not building with Imlib support, don't build Esetroot
if test -z "$GRLIBS"; then
  sed -e 's/^bin_PROGRAMS.*$//g' doc/Makefile > doc/Makefile.new
  mv doc/Makefile.new doc/Makefile
fi

echo "
$PACKAGE $VERSION
Configuration:
--------------

  Source code location:       ${srcdir}
  Compiler:	              ${CC} ${CFLAGS}
  Host System Type:           ${host}
  Graphics libraries:         ${GRLIBS}
  X libraries/paths:          ${X_LIBS}
  Install path:		      ${prefix}

  See src/feature.h for further configuration information.

  Now type 'make' to build $PACKAGE $VERSION.
"