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0.31

dnl Generator configure.in file - process with autoconf

  AC_INIT(../src/generator.c)
  AC_CONFIG_HEADER(../hdr/config.h)

dnl Checks for programs.

  AC_PROG_CC
  AC_PROG_CPP
  AC_PROG_INSTALL
  AC_PROG_MAKE_SET
  AC_PROG_RANLIB
  AC_TYPE_SIGNAL

  CFLAGS=-O3
  HEADERS="-I. -Iz80 -I../hdr -I../src/snd"

  program=""
  AC_ARG_ENABLE(tcltk, [moo tcltk version], program="generator-tcltk")
  AC_ARG_ENABLE(svgalib, [moo svgalib version], program="generator-svgalib")
  AC_ARG_ENABLE(allegro, [moo svgalib version], program="generator-allegro")
  if [[ "x$program" = "x" ]]; then
    AC_MSG_ERROR(You must select the user interface type)
  fi

  if [[ "x$program" = "xgenerator-tcltk" ]]; then
    AC_PATH_XTRA
    if [[ "$no_x" ]]; then
      AC_MSG_ERROR(X is not installed)
    fi
    HEADERS="$HEADERS -I- -I/usr/X11R6/include"
    CPPFLAGS="$HEADERS"
    CFLAGS="$CFLAGS $X_CFLAGS"
    DEPFLAGS="$HEADERS $X_CFLAGS"
    LIBS="$X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
    LDFLAGS="$X_LIBS -L/usr/lib -L/usr/local/lib -L/usr/X11R6/lib/"
  fi

  if [[ "x$program" = "xgenerator-svgalib" ]]; then
    CPPFLAGS="$HEADERS"
    DEPFLAGS="$HEADERS"
    LIBS=""
    LDFLAGS="-L/usr/lib -L/usr/local/lib"
  fi
  if [[ "x$program" = "xgenerator-allegro" ]]; then
    HEADERS="$HEADERS"
    CPPFLAGS="$HEADERS"
    DEPFLAGS="$HEADERS"
    LIBS=""
    LDFLAGS="-L/usr/i586-pc-msdosdjgpp/lib"
    LDFLAGS=""
    CFLAGS="$CFLAGS -DALLEGRO"
  fi

  os=`uname -s 2>/dev/null | tr '[A-Z]' '[a-z]'`
  case "$os" in
    sunos)	OSLDFLAGS="-R/gnu/lib -R/usr/local/lib";;
    *)		OSLDFLAGS="";;
  esac

  LDFLAGS="$LDFLAGS $OSLDFLAGS"

dnl Checks for libraries.

  AC_CHECK_LIB(m,cos,[LIBS="$LIBS -lm";lib=yes],lib=no)
    if [[ $lib = no ]]; then
    AC_MSG_WARN("No libm found!")
  fi

  AC_CHECK_LIB(dl,dlopen,[LIBS="$LIBS -ldl";lib=yes],lib=no)
  if [[ $lib = no ]]; then
    AC_MSG_WARN("No libdl found!")
  fi
  if [[ "x$program" = "xgenerator-tcltk" ]]; then
    AC_CHECK_LIB(tcl8.0,Tcl_DoOneEvent,[LIBS="$LIBS -ltcl8.0"; lib=yes],lib=no)
    if [[ $lib = no ]]; then
      AC_CHECK_LIB(tcl,Tcl_DoOneEvent,[LIBS="$LIBS -ltcl"; lib=yes],lib=no)
    fi
    if [[ $lib = no ]]; then
      AC_MSG_ERROR(Could not find or link with lib tcl)
    fi
    AC_CHECK_LIB(tk8.0,Tk_Init,[LIBS="$LIBS -ltk8.0"; lib=yes],lib=no)
    if [[ $lib = no ]]; then
      AC_CHECK_LIB(tk,Tk_Init,[LIBS="$LIBS -ltk"; lib=yes],lib=no)
      if [[ $lib = no ]]; then
        AC_MSG_ERROR(Could not find or link with lib tk)
      fi
    fi
    OLDLIBS=$LIBS
    LIBS="$LIBS -lXext";
#    AC_CHECK_LIB(Xxf86dga,XF86DGAQueryVersion,[
#      LIBS="$LIBS -lXxf86dga";CFLAGS="$CFLAGS -DXF86DGA";
#      lib=yes],LIBS=$OLDLIBS;lib=no)
  fi

  if [[ "x$program" = "xgenerator-svgalib" ]]; then
    if [[ $cross_compiling = no ]]; then
      AC_CHECK_LIB(vga,vga_init,[LIBS="$LIBS -lvga";lib=yes],lib=no)
    else
      AC_CHECK_LIB(dosvga,vga_init,[LIBS="$LIBS -ldosvga";lib=yes],lib=no)
    fi
    if [[ $lib = no ]]; then
      AC_MSG_ERROR(Could not find or link with lib vga)
    fi
  fi

  if [[ "x$program" = "xgenerator-allegro" ]]; then
    AC_CHECK_LIB(alleg,allegro_exit,[LIBS="$LIBS -lalleg";lib=yes],lib=no)
    if [[ $lib = no ]]; then
      AC_MSG_ERROR(Could not find or link with lib alleg (allegro))
    fi
  fi

dnl Checks for header files.

  AC_HEADER_STDC

  AC_CHECK_HEADER(fcntl.h,hdr=yes,hdr=no)
  if [[ $hdr = no ]]; then
    AC_MSG_ERROR(Could not find fcntl.h)
  fi

  AC_CHECK_HEADER(unistd.h,hdr=yes,hdr=no)
  if [[ $hdr = no ]]; then
    AC_MSG_ERROR(Could not find unistd.h)
  fi

  if [[ "x$program" = "xgenerator-tcltk" ]]; then
    AC_CHECK_HEADERS(tk8.0.h,hdr=yes,hdr=no)
    if [[ $hdr = no ]]; then
      AC_CHECK_HEADERS(tk.h,hdr=yes,hdr=no)
      if [[ $hdr = no ]]; then
        AC_MSG_ERROR(Could not find tk.h)
      fi
    fi
    AC_CHECK_HEADERS(tcl8.0.h,hdr=yes,hdr=no)
    if [[ $hdr = no ]]; then
      AC_CHECK_HEADERS(tcl.h,hdr=yes,hdr=no)
      if [[ $hdr = no ]]; then
        AC_MSG_ERROR(Could not find tcl.h)
      fi
    fi
  fi

dnl Checks for typedefs, structures, and compiler characteristics.

  if [[ $cross_compiling = no ]]; then
    AC_C_BIGENDIAN
  else
    echo '** ASSUMING LITTLE ENDIAN'
    # AC_DEFINE(WORDS_BIGENDIAN, 1)
  fi
  AC_C_CONST
  AC_C_INLINE
  AC_CHECK_SIZEOF(unsigned char, 1)
  AC_CHECK_SIZEOF(unsigned short, 2)
  AC_CHECK_SIZEOF(unsigned int, 4)
  AC_CHECK_SIZEOF(unsigned long, 4)
  AC_CHECK_SIZEOF(unsigned long long, 8)

dnl Make CFLAGS not link and add additional stuff

  if [[ "x$GCC" = "xyes" ]]; then
    CFLAGS="$CFLAGS -Wall -Wno-unused -Wno-format -W"
#    CFLAGS="$CFLAGS -Wmissing-prototypes -Wstrict-prototypes"
    CFLAGS="$CFLAGS -Wstrict-prototypes"
#    CFLAGS="$CFLAGS -fomit-frame-pointer
  fi
  CFLAGS="-c $CFLAGS"
  if [[ "x$ac_cv_c_bigendian" = "xyes" ]]; then
    AC_DEFINE(BYTES_HIGHFIRST, 1)
  fi

dnl Makefile substitutions

  AC_SUBST(DEPFLAGS)
  AC_SUBST(program)

dnl Final stuff

  AC_OUTPUT([Makefile ../src/Makefile])

  echo "Configuration was successful."
  echo "Now type: make"

dnl Moooo.

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