Bochs/bochs/configure.in

dnl // Process this file with autoconf to produce a configure script.

AC_PREREQ(2.50)
AC_INIT(bochs.h)
AC_REVISION([[$Id: configure.in,v 1.150 2002-10-11 13:21:13 bdenney Exp $]])
AC_CONFIG_HEADER(config.h)

dnl // Put Bochs version information right here so that it gets substituted
dnl // into all the right places.
VERSION="1.4.cvs"
VER_STRING="cvs-snapshot"
REL_STRING=""

changequote(<<, >>)
changequote([, ])

dnl Detect host and target
AC_CANONICAL_HOST
AC_CANONICAL_TARGET

if test "$with_win32_vcpp"; then
  echo "WARNING: The --with-win32-vcpp option will be treated as:"
  echo "   --with-win32 --target=i686-pc-windows"
  target="i686-pc-windows"
  with_win32=yes
fi

AC_MSG_CHECKING(if you are configuring for another platform)
if test "$target" = "$build"; then
  AC_MSG_RESULT(no)
  cross_configure=0
else
  AC_MSG_RESULT(yes)
  cross_configure=1
fi

# this case statement defines the compile flags which are needed to
# compile bochs on a platform.  Don't put things like optimization settings 
# into the configure.in file, since people will want to be able to change
# those settings by defining CFLAGS and CXXFLAGS before running configure.
case "$target" in
  *-pc-windows* | *-pc-winnt*)
    DEFAULT_GUI=win32                 # default to win32 gui
    ;;
  *-pc-cygwin* | *-pc-mingw32*)
    if test "$with_term" = yes; then
      # ncurses won't compile with -mno-cygwin or -DWIN32
      # also, I can't get it to link without this -DBROKEN_LINKER=1 hack.
      # see /usr/include/curses.h for details.
      ADD_FLAGS="-DBROKEN_LINKER=1"
    else
      # default case
      ADD_FLAGS="-mno-cygwin -DWIN32"   # required for cygwin compile+win32 gui
      DEFAULT_GUI=win32                 # default to win32 gui
    fi
    ;;
  *-macosx* | *-darwin*)
    ADD_FLAGS="-fpascal-strings -fno-common -arch ppc -Wno-four-char-constants -Wno-unknown-pragmas -Dmacintosh"      # required for macosx compile
    DEFAULT_GUI=carbon                # default to carbon
    ;;
  *-macos*)
    DEFAULT_GUI=macos                 # macos defaults to macos
    ;;
  *-beos*)
    DEFAULT_GUI=beos                  # beos defaults to beos
    ;;
  *-amigaos*)
    DEFAULT_GUI=amigaos               # amigaos defaults to amigaos
    ;;
  *)
    DEFAULT_GUI=x11
    ;;
esac
if test "${ADD_FLAGS:+set}" = set; then
      CFLAGS="$CFLAGS $ADD_FLAGS"
      CXXFLAGS="$CXXFLAGS $ADD_FLAGS"
fi

AC_MSG_CHECKING(for standard CFLAGS on this platform)
AC_MSG_RESULT($ADD_FLAGS)

dnl // make sure X Windows is default if no other chosen
if (test "$with_sdl" != yes) && \
   (test "$with_x11" != yes) && \
   (test "$with_beos" != yes) && \
   (test "$with_win32" != yes) && \
   (test "$with_nogui" != yes) && \
   (test "$with_term" != yes) && \
   (test "$with_rfb" != yes) && \
   (test "$with_amigaos" != yes) && \
   (test "$with_carbon" != yes) && \
   (test "$with_wx" != yes) && \
   (test "$with_macos" != yes); then
  # use DEFAULT_GUI.  Set the appropriate variable.
  # DEFAULT_GUI must be set to one of the names above.  Otherwise, no
  # valid $with_* variable will be set and who knows what will happen?
  eval "with_${DEFAULT_GUI}=yes"
fi

AC_PROG_CC
AC_PROG_CXX
AC_PROG_MAKE_SET
AC_PROG_RANLIB

AC_PATH_XTRA

AC_C_BIGENDIAN
AC_C_INLINE
AC_CHECK_SIZEOF(unsigned char)
AC_CHECK_SIZEOF(unsigned short)
AC_CHECK_SIZEOF(unsigned int)
AC_CHECK_SIZEOF(unsigned long)
AC_CHECK_SIZEOF(unsigned long long)
AC_CHECK_SIZEOF(int *)
AC_CHECK_FUNCS(getenv, AC_DEFINE(BX_HAVE_GETENV))
AC_CHECK_FUNCS(select, AC_DEFINE(BX_HAVE_SELECT))
AC_CHECK_FUNCS(snprintf, AC_DEFINE(BX_HAVE_SNPRINTF))
AC_CHECK_FUNCS(strtoull, AC_DEFINE(BX_HAVE_STRTOULL))
AC_CHECK_FUNCS(strtouq, AC_DEFINE(BX_HAVE_STRTOUQ))
AC_CHECK_FUNCS(strdup, AC_DEFINE(BX_HAVE_STRDUP))
AC_CHECK_FUNCS(sleep, AC_DEFINE(BX_HAVE_SLEEP))
AC_CHECK_FUNCS(usleep, AC_DEFINE(BX_HAVE_USLEEP))
AC_CHECK_FUNCS(nanosleep, AC_DEFINE(BX_HAVE_NANOSLEEP))
AC_CHECK_FUNCS(abort, AC_DEFINE(BX_HAVE_ABORT))
AC_CHECK_FUNCS(gettimeofday, AC_DEFINE(BX_HAVE_GETTIMEOFDAY))
AC_CHECK_TYPE(socklen_t, AC_DEFINE(BX_HAVE_SOCKLEN_T), , [#include <sys/types.h>
#include <sys/socket.h>])

dnl As of autoconf 2.53, the standard largefile test fails for Linux/gcc.
dnl It does not put the largefiles arguments into CFLAGS, even though Linux/gcc
dnl does need them.  Since wxWindows had already solved this exact problem,
dnl Bryce asked Vadim Zeitlin of the wxWindows project if Bochs could grab
dnl their largefile test, and he said it was fine.  The re-implemented
dnl AC_SYS_LARGEFILE test can be found in aclocal.m4.
AC_SYS_LARGEFILE

dnl This logic came from wxWindows as well.  Bryce added the CFLAGS and 
dnl CXXFLAGS lines, since Bochs makefiles don't use CPPFLAGS at all.
dnl
dnl we need to define _FILE_OFFSET_BITS or _LARGE_FILES on the compiler command
dnl line because otherwise the system headers risk being included before
dnl config.h which defines these constants leading to inconsistent
dnl sizeof(off_t) in different source files of the same program and linking
dnl problems
if test "x$wx_largefile" = "xyes"; then
    if test "x$ac_cv_sys_file_offset_bits" = "x64"; then
        BX_LARGEFILE_FLAGS="-D_FILE_OFFSET_BITS=64 -D_LARGE_FILES"
    else 
        BX_LARGEFILE_FLAGS="-D_LARGE_FILES"
    fi
    CPPFLAGS="$CPPFLAGS $BX_LARGEFILE_FLAGS"
    CFLAGS="$CFLAGS $BX_LARGEFILE_FLAGS"
    CXXFLAGS="$CXXFLAGS $BX_LARGEFILE_FLAGS"
fi
dnl ---end of largefile tests

AC_MSG_CHECKING(for struct timeval)
AC_TRY_COMPILE([#include <sys/time.h>],
    [struct timeval x;], 
    [
      AC_MSG_RESULT(yes)
      AC_DEFINE(BX_HAVE_STRUCT_TIMEVAL, 1) 
    ],
    AC_MSG_RESULT(no))

AC_MSG_CHECKING(if compiler allows empty structs)
AC_TRY_COMPILE([], [typedef struct { } junk;], 
    AC_MSG_RESULT(yes),
    [
      AC_DEFINE(BX_NO_EMPTY_STRUCTS)
      AC_MSG_RESULT(no)
    ])

AC_MSG_CHECKING(if compiler allows __attribute__)
AC_TRY_COMPILE([], [typedef struct { } __attribute__ ((packed)) junk;], 
    AC_MSG_RESULT(yes),
    [
      AC_MSG_RESULT(no)
      AC_DEFINE(BX_NO_ATTRIBUTES)
    ])

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING(for hash_map.h)
AC_TRY_COMPILE([#include <hash_map.h>], [],
   [
     AC_MSG_RESULT(yes)
     AC_DEFINE(BX_HAVE_HASH_MAP)
   ], AC_MSG_RESULT(no))
AC_LANG_RESTORE

use_config_interface=1
AC_MSG_CHECKING(for configuration interface)
AC_ARG_ENABLE(config-interface,
  [  --enable-config-interface        turns on/off configuration interface],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
	use_config_interface=1
   else
    AC_MSG_RESULT(no)
	use_config_interface=0
   fi],
  [
    AC_MSG_RESULT(yes)
	use_config_interface=1
    ]
  )

# continue to support --enable-control-panel and make it do the same
# as before.
AC_MSG_CHECKING(for control panel)
AC_ARG_ENABLE(control-panel,
  [  --enable-control-panel           Deprecated. Use --enable-config-interface.],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
	use_config_interface=1
   else
    AC_MSG_RESULT(no)
	use_config_interface=0
   fi],
  [
    AC_MSG_RESULT(yes)
	use_config_interface=1
    ]
  )

if test "$use_config_interface" = 1; then
  AC_DEFINE(BX_USE_CONFIG_INTERFACE, 1)
else
  AC_DEFINE(BX_USE_CONFIG_INTERFACE, 0)
fi

AC_MSG_CHECKING(for new PIT model)
AC_ARG_ENABLE(new-pit,
  [  --enable-new-pit                  use Greg Alexander's new PIT model],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_USE_NEW_PIT, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_USE_NEW_PIT, 0)
   fi],
  [
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_USE_NEW_PIT, 1)
    ]
  )
AC_SUBST(BX_USE_NEW_PIT)

AC_MSG_CHECKING(for realtime PIT)
AC_ARG_ENABLE(realtime-pit,
  [  --enable-realtime-pit                  try to keep clk in sync w/ real time],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_USE_REALTIME_PIT, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_USE_REALTIME_PIT, 0)
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_USE_REALTIME_PIT, 0)
    ]
  )
AC_SUBST(BX_USE_REALTIME_PIT)

AC_MSG_CHECKING(for slowdown timer)
AC_ARG_ENABLE(slowdown,
  [  --enable-slowdown                 use Greg Alexander's slowdown timer],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_USE_SLOWDOWN_TIMER, 1)
    SLOWDOWN_OBJS='$(SLOWDOWN_OBJS)'
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_USE_SLOWDOWN_TIMER, 0)
    SLOWDOWN_OBJS=''
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_USE_SLOWDOWN_TIMER, 0)
    SLOWDOWN_OBJS=''
    ]
  )
AC_SUBST(BX_USE_SLOWDOWN_TIMER)
AC_SUBST(SLOWDOWN_OBJS)

AC_MSG_CHECKING(for idle hack)
AC_ARG_ENABLE(idle-hack,
  [  --enable-idle-hack                use Roland Mainz's idle hack],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_USE_IDLE_HACK, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_USE_IDLE_HACK, 0)
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_USE_IDLE_HACK, 0)
    ]
  )
AC_SUBST(BX_USE_IDLE_HACK)


AC_MSG_CHECKING(for number of processors)
AC_ARG_ENABLE(processors,
  [  --enable-processors               select number of processors (1,2,4,8)],
  [case "$enableval" in
     1)
       AC_MSG_RESULT(1)
       AC_DEFINE(BX_SMP_PROCESSORS, 1)
       AC_DEFINE(BX_BOOTSTRAP_PROCESSOR, 0)
       AC_DEFINE(BX_IOAPIC_DEFAULT_ID, 1)
       ;;
     2)
       AC_MSG_RESULT(2)
       AC_DEFINE(BX_SMP_PROCESSORS, 2)
       AC_DEFINE(BX_BOOTSTRAP_PROCESSOR, 0)
       AC_DEFINE(BX_IOAPIC_DEFAULT_ID, 2)
       AC_DEFINE(BX_USE_CPU_SMF, 0)
       ;;
     4)
       AC_MSG_RESULT(4)
       AC_DEFINE(BX_SMP_PROCESSORS, 4)
       AC_DEFINE(BX_BOOTSTRAP_PROCESSOR, 2)
       AC_DEFINE(BX_IOAPIC_DEFAULT_ID, 4)
       AC_DEFINE(BX_USE_CPU_SMF, 0)
       ;;
     8)
       AC_MSG_RESULT(8)
       AC_DEFINE(BX_SMP_PROCESSORS, 8)
       AC_DEFINE(BX_BOOTSTRAP_PROCESSOR, 0)
       AC_DEFINE(BX_IOAPIC_DEFAULT_ID, 0x11)
       AC_DEFINE(BX_USE_CPU_SMF, 0)
       ;;
     *)
       echo " "
       echo "WARNING: processors != [1,2,4,8] can work, but you need to modify rombios.c manually"
       AC_MSG_RESULT($enable_val)
       AC_DEFINE(BX_SMP_PROCESSORS, $enable_val)
       AC_DEFINE(BX_BOOTSTRAP_PROCESSOR, 0)
       AC_DEFINE(BX_IOAPIC_DEFAULT_ID, $enable_val)
       AC_DEFINE(BX_USE_CPU_SMF, 0)
       ;;
   esac
   bx_procs="$enableval"
  ],
  [
     AC_MSG_RESULT(1)
     AC_DEFINE(BX_SMP_PROCESSORS, 1)
     AC_DEFINE(BX_BOOTSTRAP_PROCESSOR, 0)
     AC_DEFINE(BX_IOAPIC_DEFAULT_ID, 1)
     bx_procs=1
  ]
  )

AC_MSG_CHECKING(if compiler allows blank labels)
AC_TRY_COMPILE([], [ { label1: } ],
    AC_MSG_RESULT(yes),
    [
      AC_MSG_RESULT(no)
      AC_DEFINE(BX_NO_BLANK_LABELS)
    ])

AC_MSG_CHECKING(if compiler allows LL for 64-bit constants)
AC_TRY_COMPILE([], [ { 42LL; } ],
    AC_MSG_RESULT(yes),
    [
      AC_MSG_RESULT(no)
      AC_DEFINE(BX_64BIT_CONSTANTS_USE_LL, 0)
    ])

use_x86_64=0
AC_MSG_CHECKING(for x86-64 support)
AC_ARG_ENABLE(x86-64,
  [  --enable-x86-64                   compile in support for x86-64 instructions],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    OBJS64='$(OBJS64)'
    AC_DEFINE(BX_SUPPORT_X86_64, 1)
    use_x86_64=1
   else
    AC_MSG_RESULT(no)
    OBJS64=''
    AC_DEFINE(BX_SUPPORT_X86_64, 0)
   fi
   ],
  [
    AC_MSG_RESULT(no)
    OBJS64=''
    AC_DEFINE(BX_SUPPORT_X86_64, 0)
    ]
  )
AC_SUBST(OBJS64)

AC_MSG_CHECKING(for cpu level)
AC_ARG_ENABLE(cpu-level,
  [  --enable-cpu-level                select cpu level (3,4,5,6)],
  [case "$enableval" in
     3)
       AC_MSG_RESULT(3)
       AC_DEFINE(BX_CPU_LEVEL, 3)
       AC_DEFINE(BX_CPU_LEVEL_HACKED, 3)
       ;;
     4)
       AC_MSG_RESULT(4)
       AC_DEFINE(BX_CPU_LEVEL, 4)
       AC_DEFINE(BX_CPU_LEVEL_HACKED, 4)
       ;;
     5)
       AC_MSG_RESULT(5)
       AC_DEFINE(BX_CPU_LEVEL, 5)
       AC_DEFINE(BX_CPU_LEVEL_HACKED, 5)
       ;;
     6)
       AC_MSG_RESULT(6)
       AC_DEFINE(BX_CPU_LEVEL, 6)
       AC_DEFINE(BX_CPU_LEVEL_HACKED, 6)
       ;;
     *)
       echo " "
       echo "ERROR: you must supply a valid CPU level to --enable-cpu-level"
       exit 1
       ;;
   esac
   bx_cpu_level=$enableval
   if test "$bx_procs" -gt 1 -a "$enableval" -lt 6; then
     echo "ERROR: with >1 processor, use --enable-cpu-level=6"
     exit 1
   fi
  ],
  [
    # for multiprocessors, cpu level must be 6
    if test "$bx_procs" -gt 1 -o "$use_x86_64" = 1; then
      AC_MSG_RESULT(6)
      AC_DEFINE(BX_CPU_LEVEL, 6)
      AC_DEFINE(BX_CPU_LEVEL_HACKED, 6)
      bx_cpu_level=6
    else
      AC_MSG_RESULT(5)
      AC_DEFINE(BX_CPU_LEVEL, 5)
      AC_DEFINE(BX_CPU_LEVEL_HACKED, 5)
      bx_cpu_level=5
    fi
  ]
  )


AC_MSG_CHECKING(for APIC support)
AC_ARG_ENABLE(apic,
  [  --enable-apic                     enable APIC support],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SUPPORT_APIC, 1)
    IOAPIC_OBJS='ioapic.o'
    APIC_OBJS='apic.o'
   else
    AC_MSG_RESULT(no)
    if test "$bx_procs" -gt 1; then
      echo "Number of processors = $bx_procs"
      echo "ERROR: With processors > 1 you must use --enable-apic"
      exit 1
    fi
    AC_DEFINE(BX_SUPPORT_APIC, 0)
    IOAPIC_OBJS=''
    APIC_OBJS=''
   fi
   ],
  [
    if test "$bx_procs" -gt 1 -o "$bx_cpu_level" -gt 5; then
      # enable APIC by default, if processors>1 or if cpulevel>5
      AC_MSG_RESULT(yes)
      AC_DEFINE(BX_SUPPORT_APIC, 1)
      IOAPIC_OBJS='ioapic.o'
      APIC_OBJS='apic.o'
    else
      AC_MSG_RESULT(no)
      AC_DEFINE(BX_SUPPORT_APIC, 0)
      IOAPIC_OBJS=''
      APIC_OBJS=''
     fi
   ]
  )
AC_SUBST(IOAPIC_OBJS)
AC_SUBST(APIC_OBJS)

AC_MSG_CHECKING(for split hard disk image support)
AC_ARG_ENABLE(split-hd,
  [  --enable-split-hd                 allows split hard disk image],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SPLIT_HD_SUPPORT, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_SPLIT_HD_SUPPORT, 0)
   fi],
  [
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SPLIT_HD_SUPPORT, 1)
    ]
  )
AC_SUBST(BX_SPLIT_HD_SUPPORT)

AC_MSG_CHECKING(for NE2000 support)
AC_ARG_ENABLE(ne2000,
  [  --enable-ne2000                   enable limited ne2000 support],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_NE2K_SUPPORT, 1)
    NE2K_OBJS='ne2k.o eth.o eth_null.o'
    AC_CHECK_HEADER(net/bpf.h, NE2K_OBJS="$NE2K_OBJS eth_fbsd.o")
    AC_CHECK_HEADER(netpacket/packet.h, NE2K_OBJS="$NE2K_OBJS eth_linux.o")
    AC_CHECK_HEADER(linux/netlink.h, [
        NE2K_OBJS="$NE2K_OBJS eth_tap.o"
        AC_DEFINE(HAVE_ETHERTAP, 1)
      ], [], 
      [
	#include <asm/types.h>
	#include <sys/socket.h>
      ])
    AC_CHECK_HEADER(linux/if_tun.h, [
        NE2K_OBJS="$NE2K_OBJS eth_tuntap.o"
        AC_DEFINE(HAVE_TUNTAP, 1)
      ], [], 
      [
	#include <asm/types.h>
	#include <sys/socket.h>
      ])
    case "$target" in
      *-pc-windows* | *-pc-winnt* | *-pc-cygwin* | *-pc-mingw32*)
      NE2K_OBJS="$NE2K_OBJS eth_win32.o"
      ;;
    esac
    networking=yes
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_NE2K_SUPPORT, 0)
    NE2K_OBJS=''
    networking=no
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_NE2K_SUPPORT, 0)
    NE2K_OBJS=''
    networking=no
    ]
  )
AC_SUBST(NE2K_OBJS)


AC_MSG_CHECKING(for i440FX PCI support)
AC_ARG_ENABLE(pci,
  [  --enable-pci                      enable limited i440FX PCI support],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_PCI_SUPPORT, 1)
    PCI_OBJ='pci.o pci2isa.o'
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_PCI_SUPPORT, 0)
    PCI_OBJ=''
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_PCI_SUPPORT, 0)
    PCI_OBJ=''
    ]
  )
AC_SUBST(PCI_OBJ)

AC_MSG_CHECKING(for Promise DC2300 VLB-IDE support)
AC_ARG_ENABLE(dc2300-vlb-ide,
  [  --enable-dc2300-vlb-ide           enable Promise DC2300 VLB-IDE support],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_PDC20230C_VLBIDE_SUPPORT, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_PDC20230C_VLBIDE_SUPPORT, 0)
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_PDC20230C_VLBIDE_SUPPORT, 0)
    ]
  )


AC_MSG_CHECKING(for 4Meg pages support)
AC_ARG_ENABLE(4meg-pages,
  [  --enable-4meg-pages               support 4Megabyte pages extensions],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SUPPORT_4MEG_PAGES, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_SUPPORT_4MEG_PAGES, 0)
   fi],
  [
    if test "$bx_cpu_level" -gt 5; then
      AC_MSG_RESULT(yes)
      AC_DEFINE(BX_SUPPORT_4MEG_PAGES, 1)
    else
      AC_MSG_RESULT(no)
      AC_DEFINE(BX_SUPPORT_4MEG_PAGES, 0)
    fi
    ]
  )


AC_MSG_CHECKING(for PAE support)
AC_ARG_ENABLE(pae,
  [  --enable-pae                      support Physical Address Extensions],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SupportPAE, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_SupportPAE, 0)
   fi],
  [
    if test "$bx_cpu_level" -gt 5; then
      AC_MSG_RESULT(yes)
      AC_DEFINE(BX_SupportPAE, 1)
    else
      AC_MSG_RESULT(no)
      AC_DEFINE(BX_SupportPAE, 0)
    fi
    ]
  )


AC_MSG_CHECKING(for guest to host TLB support)
AC_ARG_ENABLE(guest2host-tlb,
  [  --enable-guest2host-tlb           support guest to host addr TLB for speed],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    speedup_guest2host_tlb=1
   else
    AC_MSG_RESULT(no)
    speedup_guest2host_tlb=0
   fi],
  [
    AC_MSG_RESULT(no)
    speedup_guest2host_tlb=0
    ]
  )

AC_MSG_CHECKING(for repeated IO and mem copy speedups)
AC_ARG_ENABLE(repeat-speedups,
  [  --enable-repeat-speedups          support repeated IO and mem copy speedups],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    speedup_repeat=1
   else
    AC_MSG_RESULT(no)
    speedup_repeat=0
   fi],
  [
    AC_MSG_RESULT(no)
    speedup_repeat=0
    ]
  )

AC_MSG_CHECKING(for instruction cache support)
AC_ARG_ENABLE(icache,
  [  --enable-icache                   support instruction cache (runs faster)],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    speedup_iCache=1
   else
    AC_MSG_RESULT(no)
    speedup_iCache=0
   fi],
  [
    AC_MSG_RESULT(no)
    speedup_iCache=0
    ]
  )

AC_MSG_CHECKING(for global pages support)
AC_ARG_ENABLE(global-pages,
  [  --enable-global-pages             support for global pages in PDE/PTE],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SupportGlobalPages, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_SupportGlobalPages, 0)
   fi],
  [
    if test "$bx_cpu_level" -gt 5; then
      # enable by default
      AC_MSG_RESULT(yes)
      AC_DEFINE(BX_SupportGlobalPages, 1)
    else
      AC_MSG_RESULT(no)
      AC_DEFINE(BX_SupportGlobalPages, 0)
    fi
    ]
  )

AC_MSG_CHECKING(for host specific inline assembly accelerations)
AC_ARG_ENABLE(host-specific-asms,
  [  --enable-host-specific-asms       support for host specific inline assembly],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    speedup_host_specific_asms=1
   else
    AC_MSG_RESULT(no)
    speedup_host_specific_asms=0
   fi],
  [
    AC_MSG_RESULT(yes)
    speedup_host_specific_asms=1
    ]
  )

AC_MSG_CHECKING(whether to ignore bad MSR references)
AC_ARG_ENABLE(ignore-bad-msr,
  [  --enable-ignore-bad-msr           ignore bad MSR references ],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_IGNORE_BAD_MSR, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_IGNORE_BAD_MSR, 0)
   fi],
  [
    # default: normally disabled, but in x86-64 mode enable it.
    if test "$use_x86_64" = 1; then
      AC_MSG_RESULT(yes)
      AC_DEFINE(BX_IGNORE_BAD_MSR, 1)
    else
      AC_MSG_RESULT(no)
      AC_DEFINE(BX_IGNORE_BAD_MSR, 0)
    fi
    ]
  )

AC_MSG_CHECKING(for port e9 hack)
AC_ARG_ENABLE(port-e9-hack,
  [  --enable-port-e9-hack             writes to port e9 go to console],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_PORT_E9_HACK, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_PORT_E9_HACK, 0)
   fi],
  [
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_PORT_E9_HACK, 1)
    ]
  )


AC_MSG_CHECKING(for use of .cpp as suffix)
AC_ARG_ENABLE(cpp,
  [  --enable-cpp                      use .cpp as C++ suffix],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    SUFFIX_LINE='.SUFFIXES: .cpp'
    CPP_SUFFIX='cpp'
   else
    AC_MSG_RESULT(no)
    SUFFIX_LINE='.SUFFIXES: .cc'
    CPP_SUFFIX='cc'
   fi],
  [
    AC_MSG_RESULT(no)
    SUFFIX_LINE='.SUFFIXES: .cc'
    CPP_SUFFIX='cc'
    ]
  )
AC_SUBST(SUFFIX_LINE)
AC_SUBST(CPP_SUFFIX)

if test "$enable_cpp" = yes; then
  echo "moving .cc source files to .cpp"
  sourcefiles=`find . -name "*.cc" -print`
  if test "$sourcefiles" != ""; then
    for ccname in $sourcefiles
    do
      cppname=`echo $ccname | sed -e "s/\.cc$/.cpp/"`
      echo "mv $ccname $cppname"
      mv   $ccname $cppname
    done
  else
    echo "no more .cc source files to rename"
  fi
fi



AC_MSG_CHECKING(for Bochs internal debugger support)
AC_ARG_ENABLE(debugger,
  [  --enable-debugger                 compile in support for Bochs internal debugger],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_DEBUGGER, 1)
    DEBUGGER_VAR='$(DEBUGGER_LIB)'
    bx_debugger=1
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_DEBUGGER, 0)
    DEBUGGER_VAR=''
    bx_debugger=0
   fi
   ],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_DEBUGGER, 0)
    DEBUGGER_VAR=''
    bx_debugger=0
    ]
  )
AC_SUBST(DEBUGGER_VAR)

AC_MSG_CHECKING(for external debugger)
EXT_DEBUG_OBJS=''
AC_ARG_ENABLE(external-debugger,
  [  --enable-external-debugger        enable external debugger support],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_EXTERNAL_DEBUGGER, 1)
    EXT_DEBUG_OBJS=extdb.o
   else
    AC_MSG_RESULT(no)
   fi],
  [
    AC_MSG_RESULT(no)
  ])
AC_SUBST(BX_EXTERNAL_DEBUGGER)

AC_MSG_CHECKING(for disassembler support)
AC_ARG_ENABLE(disasm,
  [  --enable-disasm                   compile in support for disassembler],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_DISASM, 1)
    DISASM_VAR='$(DISASM_LIB)'
   else
    AC_MSG_RESULT(no)
    if test "$bx_debugger" = 1; then
      echo "ERROR: debugger is enabled, so --enable-disasm is required"
      exit 1
    fi
    AC_DEFINE(BX_DISASM, 0)
    DISASM_VAR=''
   fi],
  [
    if test "$bx_debugger" = 1; then
      AC_MSG_RESULT(yes)
      AC_DEFINE(BX_DISASM, 1)
      DISASM_VAR='$(DISASM_LIB)'
    else
      AC_MSG_RESULT(no)
      AC_DEFINE(BX_DISASM, 0)
      DISASM_VAR=''
    fi
    ]
  )
AC_SUBST(DISASM_VAR)

AC_MSG_CHECKING(for ALL optimizations enabled)
AC_ARG_ENABLE(all-optimizations,
  [  --enable-all-optimizations        compile in all possible optimizations],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    speedups_all=1
   else
    AC_MSG_RESULT(no)
    speedups_all=0
   fi
   ],
  [
    AC_MSG_RESULT(no)
    speedups_all=0
    ]
  )

#
# Optimizations section.  Decide what the status of various optimizations
# should be based on configure choices and other factors.
#

if test "$speedups_all" = 1; then
  # Configure requested to force all options enabled.
  speedup_guest2host_tlb=1
  speedup_repeat=1
  speedup_iCache=1
  speedup_host_specific_asms=1
fi

if test "$speedup_guest2host_tlb" = 1; then
  AC_DEFINE(BX_SupportGuest2HostTLB, 1)
else
  AC_DEFINE(BX_SupportGuest2HostTLB, 0)
fi

if test "$speedup_repeat" = 1; then
  AC_DEFINE(BX_SupportRepeatSpeedups, 1)
else
  AC_DEFINE(BX_SupportRepeatSpeedups, 0)
fi

if test "$speedup_iCache" = 1; then
  AC_DEFINE(BX_SupportICache, 1)
else
  AC_DEFINE(BX_SupportICache, 0)
fi

if test "$speedup_host_specific_asms" = 1; then
  AC_DEFINE(BX_SupportHostAsms, 1)
else
  AC_DEFINE(BX_SupportHostAsms, 0)
fi



READLINE_LIB=""
rl_without_curses_ok=no
rl_with_curses_ok=no

AC_MSG_CHECKING(if readline works without -lcurses)
OLD_LIBS=$LIBS
LIBS="$LIBS -lreadline"
AC_TRY_RUN([
  #include <stdio.h>
  #include <readline/readline.h>
  int main() { rl_initialize(); exit(0); }
  ], 
  [ AC_MSG_RESULT(yes)
    rl_without_curses_ok=yes ],
  [ AC_MSG_RESULT(no) ]
)
AC_MSG_CHECKING(if readline works with -lcurses)
LIBS="$LIBS -lcurses"
AC_TRY_RUN([
  #include <stdio.h>
  #include <readline/readline.h>
  int main() { rl_initialize(); exit(0); }
  ], 
  [AC_MSG_RESULT(yes)
   rl_with_curses_ok=yes ],
  [ AC_MSG_RESULT(no) ]
)
LIBS=$OLD_LIBS

AC_MSG_CHECKING(whether user wants readline)
AC_ARG_ENABLE(readline,
  [  --enable-readline                 use readline library, if available],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
     want_readline=yes
   else
     AC_MSG_RESULT(no)
     want_readline=no
   fi],
  [
    AC_MSG_RESULT(yes)
    want_readline=yes
    ]
 )

use_readline=0
AC_MSG_CHECKING(whether to use readline)
if test "$want_readline" = yes; then
  if test "$bx_debugger" = 1; then
    if test "$rl_without_curses_ok" = yes; then
      AC_MSG_RESULT(yes)
      AC_DEFINE(HAVE_LIBREADLINE, 1)
      READLINE_LIB="-lreadline"
      use_readline=1
    elif test "$rl_with_curses_ok" = yes; then
      AC_MSG_RESULT(yes)
      AC_DEFINE(HAVE_LIBREADLINE, 1)
      READLINE_LIB="-lreadline -lcurses"
      use_readline=1
    else
      AC_MSG_RESULT(no)
      echo WARNING: The readline library was disabled because it was not found.
    fi
  else
    AC_MSG_RESULT(no)
  fi
else
  AC_MSG_RESULT(no)
fi
AC_SUBST(READLINE_LIB)

AC_CHECK_HEADER(readline/history.h,
  AC_DEFINE(HAVE_READLINE_HISTORY_H)
  )

INSTRUMENT_DIR='instrument/stubs'

AC_MSG_CHECKING(for instrumentation support)
AC_ARG_ENABLE(instrumentation,
  [  --enable-instrumentation          compile in support for instrumentation],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_INSTRUMENTATION, 1)
    INSTRUMENT_VAR='$(INSTRUMENT_LIB)'
   elif test "$enableval" = no; then
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_INSTRUMENTATION, 0)
    INSTRUMENT_VAR=''
   else
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_INSTRUMENTATION, 1)
    INSTRUMENT_DIR=$enableval
    INSTRUMENT_VAR='$(INSTRUMENT_LIB)'
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_INSTRUMENTATION, 0)
    INSTRUMENT_VAR=''
    ]
  )
AC_SUBST(INSTRUMENT_DIR)
AC_SUBST(INSTRUMENT_VAR)

AC_ARG_ENABLE(simid,
  [  --enable-simid=0 or 1             CPU simulator ID if using more than one],
  [if test "$enableval" = yes; then
    AC_DEFINE(BX_SIM_ID, 0)
   elif test "$enableval" = no; then
    AC_DEFINE(BX_SIM_ID, 0)
   else
    AC_DEFINE_UNQUOTED(BX_SIM_ID, $enableval)
   fi],
  [
    AC_DEFINE(BX_SIM_ID, 0)
    ]
  )

AC_ARG_ENABLE(num-sim,
  [  --enable-num-sim=1 or 2           number of CPU simulators],
  [if test "$enableval" = yes; then
    AC_DEFINE(BX_NUM_SIMULATORS, 1)
   elif test "$enableval" = no; then
    AC_DEFINE(BX_NUM_SIMULATORS, 1)
   else
    AC_DEFINE_UNQUOTED(BX_NUM_SIMULATORS, $enableval)
   fi],
  [
    AC_DEFINE(BX_NUM_SIMULATORS, 1)
    ]
  )

AC_ARG_ENABLE(time0,
  [  --enable-time0=n                  start at n instead of using time()],
  [if test "$enableval" = yes; then
    AC_DEFINE(BX_USE_SPECIFIED_TIME0, 917385580)
   elif test "$enableval" = no; then
    AC_DEFINE(BX_USE_SPECIFIED_TIME0, 0)
   else
    AC_DEFINE_UNQUOTED(BX_USE_SPECIFIED_TIME0, $enableval)
   fi],
  [
    AC_DEFINE(BX_USE_SPECIFIED_TIME0, 0)
    ]
  )



AC_MSG_CHECKING(for VGA emulation)
AC_ARG_ENABLE(vga,
  [  --enable-vga                      use VGA emulation],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SUPPORT_VGA, 1)
    VIDEO_OBJS='$(VIDEO_OBJS_VGA)'
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_SUPPORT_VGA, 0)
    VIDEO_OBJS='$(VIDEO_OBJS_HGA)'
   fi],
  [
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SUPPORT_VGA, 1)
    VIDEO_OBJS='$(VIDEO_OBJS_VGA)'
    ]
  )
AC_SUBST(VIDEO_OBJS)

AC_MSG_CHECKING(for VESA BIOS extensions)
AC_ARG_ENABLE(vbe,
  [  --enable-vbe                      use VESA BIOS extensions],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SUPPORT_VBE, 1)
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_SUPPORT_VBE, 0)
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_SUPPORT_VBE, 0)
    ]
  )

AC_MSG_CHECKING(for MMX support)
AC_ARG_ENABLE(mmx,
  [  --enable-mmx                      compile in MMX emulation],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SUPPORT_MMX, 1)
   elif test "$enableval" = no; then
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_SUPPORT_MMX, 0)
   fi
   ],
  [
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SUPPORT_MMX, 1)
    ]
  )

AC_MSG_CHECKING(for FPU emulation)
FPU_VAR=''
FPU_GLUE_OBJ=''
AC_ARG_ENABLE(fpu,
  [  --enable-fpu                      compile in FPU emulation],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SUPPORT_FPU, 1)
    FPU_VAR='$(FPU_LIB)'
    FPU_GLUE_OBJ='$(FPU_GLUE_OBJ)'
   elif test "$enableval" = no; then
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_SUPPORT_FPU, 0)
   else
    echo " "
    echo "ERROR: --enable-fpu does not accept a path"
    exit 1
   fi
   ],
  [
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_SUPPORT_FPU, 1)
    FPU_VAR='$(FPU_LIB)'
    FPU_GLUE_OBJ='$(FPU_GLUE_OBJ)'
    ]
  )
AC_SUBST(FPU_VAR)
AC_SUBST(FPU_GLUE_OBJ)

support_sse=0
AC_MSG_CHECKING(for SSE support)
AC_ARG_ENABLE(sse,
  [  --enable-sse                      =1 (SSE) =2 (SSE2) support],
  [case "$enableval" in
    no | 0)
      support_sse=0
      AC_MSG_RESULT(no)
      ;;
    yes | 1)
      support_sse=1
      AC_MSG_RESULT(yes)
      ;;
    2)
      support_sse=2
      AC_MSG_RESULT(yes)
      ;;
    *)
      echo "ERROR: --enable-sse=$enableval not understood"
      exit 1
      ;;
   esac
   ],
  [
    AC_MSG_RESULT(no)
  ]
  )

if test "$support_sse" = 2; then
  AC_DEFINE(BX_SUPPORT_SSE,  1)
  AC_DEFINE(BX_SUPPORT_SSE2, 1)
elif test "$support_sse" = 1; then
  AC_DEFINE(BX_SUPPORT_SSE,  1)
  AC_DEFINE(BX_SUPPORT_SSE2, 0)
else
  AC_DEFINE(BX_SUPPORT_SSE,  0)
  AC_DEFINE(BX_SUPPORT_SSE2, 0)
fi

AC_MSG_CHECKING(for x86 debugger support)
AC_ARG_ENABLE(x86-debugger,
  [  --enable-x86-debugger             x86 debugger support],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_X86_DEBUGGER, 1)
   elif test "$enableval" = no; then
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_X86_DEBUGGER, 0)
   else
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_X86_DEBUGGER, 1)
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_X86_DEBUGGER, 0)
    ]
  )

AC_CHECK_HEADER(IOKit/storage/IOCDMedia.h,
  can_use_osx_cdrom=yes
  )

AC_MSG_CHECKING(for CDROM support)
AC_ARG_ENABLE(cdrom,
  [  --enable-cdrom                    CDROM support],
  [if test "$enableval" = no; then
    AC_MSG_RESULT(no)
    CDROM_OBJS=''
    AC_DEFINE(BX_SUPPORT_CDROM, 0)
   else
    AC_MSG_RESULT(yes)
    CDROM_OBJS='cdrom.o'
    if test "$with_amigaos" = yes; then
      # use the amiga cdrom file instead.
      CDROM_OBJS="cdrom_amigaos.o"
    elif test "$can_use_osx_cdrom" = yes; then
      # use cdrom_osx
      AC_MSG_RESULT(Using OSX IOKit CD Interface)	
      CDROM_OBJS="cdrom_osx.o"
      EXTRA_LINK_OPTS="${EXTRA_LINK_OPTS} -framework IOKit -framework CoreFoundation"
    fi
    case $target in
      *-beos*)
	# use the beos cdrom file instead
	CDROM_OBJS="$CDROM_OBJS cdrom_beos.o"
    esac
    AC_DEFINE(BX_SUPPORT_CDROM, 1)
   fi],
  [
    AC_MSG_RESULT(yes)
    CDROM_OBJS='cdrom.o'
    if test "$with_amigaos" = yes; then
      # use the amiga cdrom file instead.
      CDROM_OBJS="cdrom_amigaos.o"
    elif test "$can_use_osx_cdrom" = yes; then
      # use cdrom_osx
      AC_MSG_RESULT(Using OSX IOKit CD Interface)	
      CDROM_OBJS="cdrom_osx.o"
      EXTRA_LINK_OPTS="${EXTRA_LINK_OPTS} -framework IOKit -framework CoreFoundation"
    elif test "$with_beos" = yes; then
      # use the beos cdrom file instead
      CDROM_OBJS="$CDROM_OBJS cdrom_beos.o"
    fi
    AC_DEFINE(BX_SUPPORT_CDROM, 1)
    ]
  )

AC_SUBST(CDROM_OBJS)


AC_MSG_CHECKING(for Sound Blaster 16 support)
AC_ARG_ENABLE(sb16,
  [  --enable-sb16=xxx                 Sound Blaster 16 Support (xxx=dummy|win|linux|freebsd)],
  [if test "$enableval" = no; then
     AC_MSG_RESULT(no)
     SB16_OBJS=''
     AC_DEFINE(BX_SUPPORT_SB16, 0)
   else
     case "$enableval" in
       dummy)
         SB16_OBJS='$(SB16_DUMMY_OBJS)'
         AC_DEFINE(BX_SOUND_OUTPUT_C, bx_sound_output_c)
         AC_MSG_RESULT(dummy)
         ;;
       freebsd|linux)
         SB16_OBJS='$(SB16_LINUX_OBJS)'
         AC_DEFINE(BX_SOUND_OUTPUT_C, bx_sound_linux_c)
         AC_MSG_RESULT(linux)
         ;;
       win)
         SB16_OBJS='$(SB16_WIN_OBJS)'
         AC_DEFINE(BX_SOUND_OUTPUT_C, bx_sound_windows_c)
         AC_MSG_RESULT(win)
		 DEVICE_LINK_OPTS="$DEVICE_LINK_OPTS -lwinmm"
         ;;
       *)
         echo " "
         echo \!\!\!Error\!\!\!
         echo "You must pass one of dummy, linux, win, freebsd to --enable-sb16"
         exit 1 ;;
     esac
     AC_DEFINE(BX_SUPPORT_SB16, 1)
   fi],

  [
    AC_MSG_RESULT(no)
    SB16_OBJS=''
    AC_DEFINE(BX_SUPPORT_SB16, 0)
    ]
  )
AC_SUBST(SB16_OBJS)


AC_MSG_CHECKING(for gdb stub enable)
AC_ARG_ENABLE(gdb-stub,
  [  --enable-gdb-stub                 enable gdb stub support],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_GDBSTUB, 1)
    GDBSTUB_VAR='$(GDBSTUB_OBJS)'
    if test "$bx_debugger" = 1; then
      AC_MSG_ERROR(--enable-debugger and --enable-gdb-stub are mutually exclusive)
    fi
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_GDBSTUB, 0)
    GDBSTUB_VAR=''
   fi],
  [
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_GDBSTUB, 0)
    GDBSTUB_VAR=''
    ]
  )
AC_SUBST(GDBSTUB_VAR)


AC_ARG_ENABLE(hga-dumps,
  [  --enable-hga-dumps=Nmicroseconds  copy memory to HGA video buffer every N useconds],
  AC_DEFINE_UNQUOTED(BX_EMULATE_HGA_DUMPS, $enableval),
  )

AC_MSG_CHECKING(for I/O Interface to the debugger)
IODEBUG_OBJS=''
AC_ARG_ENABLE(iodebug,
  [  --enable-iodebug                  enable I/O interface to debugger],
  [if test "$enableval" = yes; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(BX_IODEBUG_SUPPORT, 1)
    IODEBUG_OBJS='iodebug.o'
   else
    AC_MSG_RESULT(no)
    AC_DEFINE(BX_IODEBUG_SUPPORT, 0)
   fi
   ],
  [
    if test "" = 1; then
      # enable by default if debugger is on
      AC_MSG_RESULT(yes)
      AC_DEFINE(BX_IODEBUG_SUPPORT, 1)
      IODEBUG_OBJS='iodebug.o'
    else
      AC_MSG_RESULT(no)
    fi
    ]
  )
AC_SUBST(IODEBUG_OBJS)



PRIMARY_TARGET='bochs'

AC_DEFINE(BX_PROVIDE_DEVICE_MODELS, 1)
IODEV_LIB_VAR='iodev/libiodev.a'
AC_DEFINE(BX_PROVIDE_CPU_MEMORY, 1)
NONINLINE_VAR='$(NONINLINE_OBJS)'

AC_SUBST(IODEV_LIB_VAR)
AC_SUBST(EXTRA_BX_OBJS)
AC_SUBST(NONINLINE_VAR)
AC_SUBST(INLINE_VAR)
AC_SUBST(EXTERNAL_DEPENDENCY)
AC_SUBST(EXT_DEBUG_OBJS)


AC_ARG_WITH(x11,
  [  --with-x11                        use X11 GUI],
  )

AC_ARG_WITH(beos,
  [  --with-beos                       use BeOS GUI],
  )

AC_ARG_WITH(win32,
  [  --with-win32                      use Win32 GUI],
  )

AC_ARG_WITH(win32-vcpp,
  [  --with-win32-vcpp                 use Win32 GUI/Visual C++ environment],
  )

AC_ARG_WITH(macos,
  [  --with-macos                      use Macintosh/CodeWarrior environment],
  )

AC_ARG_WITH(carbon,
  [  --with-carbon                     compile for MacOS X with Carbon GUI],
  )

AC_ARG_WITH(nogui,
  [  --with-nogui                      no native GUI, just use blank stubs],
  )

AC_ARG_WITH(term,
  [  --with-term                       textmode terminal environment],
  )

AC_ARG_WITH(rfb,
  [  --with-rfb                        use RFB protocol, works with VNC viewer],
  )

AC_ARG_WITH(amigaos,
  [  --with-amigaos                    use MorphOS (Amiga)],
  )

AC_ARG_WITH(sdl,
  [  --with-sdl                        use SDL libraries],
  )

AC_ARG_WITH(wx,
  [  --with-wx                         use wxWindows libraries],
  )

dnl // DASH is option prefix for your platform
dnl // SLASH is directory for your platform
dnl // CXXFP is C++ File Prefix; the flag that tells the compiler
dnl //   this is a C++ source file
dnl // CFP is C File Prefix; the flag that tells the compiler
dnl //   this is a C source file
dnl // OFP is Object File Prefix; the flag that tells the compiler
dnl //   generate an object file with this name
DASH="-"
SLASH="/"
CXXFP=""
CFP=""
OFP="-o "
MAKELIB="ar rv \$@"
RMCOMMAND="rm -f "
LINK="\$(CXX) -o \$@ \$(CXXFLAGS)"
LINK_CONSOLE="\$(CXX) -o \$@ \$(CXXFLAGS_CONSOLE)"
EXE=""
COMMAND_SEPARATOR="&& \\"
CD_UP_ONE="echo done"
CD_UP_TWO="echo done"

INSTALL_TARGET=install_unix
INSTALL_LIST_FOR_PLATFORM=

# check for existence of and usable version of wxWindows.  This comes
# early so that it could affect which one gets chosen.
if test x$WX_CONFIG = x; then
  AC_CHECK_PROG(WX_CONFIG, [ wx-config --version ], wx-config, not_found)
fi
AC_MSG_CHECKING(for wxWindows configuration script)
AC_MSG_RESULT($WX_CONFIG)
  
ok_wx_version=0
AC_MSG_CHECKING(for wxWindows library version)
if test x$WX_CONFIG != xnot_found; then
  WX_VERSION=`$WX_CONFIG --version`
  [
  # test that version >= 2.3.2.  Anybody have a better way to do this? Yuck.
  case x$WX_VERSION in 
    x2.[012]*) ;; # less than version 2.3.x
    x2.3.[01]) ;; # less than version 2.3.2
    x2.3.[2-9]*) ok_wx_version=1 ;;  # 2.3.2 or greater
    x2.3.[1-9][0-9]*) ok_wx_version=1 ;;  # 2.3.10 or greater
    x2.[4-9]*) ok_wx_version=1 ;;  # version 2.4 or greater
    x[3-9]*) ok_wx_version=1 ;;  # version 3 or greater
    *) ;; # who knows?
  esac
  ]
fi
AC_MSG_RESULT($WX_VERSION)

AC_MSG_CHECKING(for default gui on this platform)
AC_MSG_RESULT($DEFAULT_GUI)
AC_MSG_CHECKING(for gui library to use)

# the $with_* variable tells the gui library to use, but does NOT necessarily
# indicate the platform.  Settings that depend on the platform should be
# handled later.

if test "$with_x11" = yes; then
  AC_MSG_RESULT(X windows)
  if test "$no_x" = yes; then
    echo ERROR: X windows gui was selected, but X windows libraries were not found.
    exit 1
  fi
  AC_DEFINE(BX_WITH_X11, 1)
  GUI_OBJS='$(GUI_OBJS_X11) control.o'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_X)'
  INSTALL_LIST_FOR_PLATFORM='$(INSTALL_LIST_X11)'
elif test "$with_beos" = yes; then
  AC_MSG_RESULT(beos)
  AC_DEFINE(BX_WITH_BEOS, 1)
  GUI_OBJS='$(GUI_OBJS_BEOS) control.o'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_BEOS)'
elif test "$with_sdl" = yes; then
  AC_MSG_RESULT(sdl)
  # GUI_*FLAGS are added to the compilation of every bochs file, not just
  # the files in gui/*.cc.
  GUI_CFLAGS="$CFLAGS \`sdl-config --cflags\`"
  GUI_CXXFLAGS="$CXXFLAGS \`sdl-config --cflags\`"
  AC_DEFINE(BX_WITH_SDL, 1)
  GUI_OBJS='$(GUI_OBJS_SDL) control.o'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_SDL)'
elif test "$with_rfb" = yes; then
  AC_MSG_RESULT(rfb)
  AC_DEFINE(BX_WITH_RFB, 1)
  GUI_OBJS='$(GUI_OBJS_RFB) control.o'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_RFB)'
elif test "$with_amigaos" = yes; then
  AC_MSG_RESULT(amigaos)
  AC_DEFINE(BX_WITH_AMIGAOS, 1)
  GUI_OBJS='$(GUI_OBJS_AMIGAOS) control.o'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_AMIGAOS)'
elif test "$with_win32" = yes; then
  AC_MSG_RESULT(win32)
  AC_DEFINE(BX_WITH_WIN32, 1)
  GUI_OBJS='$(GUI_OBJS_WIN32) control.o'
  case $target in
    *-pc-windows*)
       GUI_LINK_OPTS='$(GUI_LINK_OPTS_WIN32_VCPP)'  # native libs for win gui
       ;;
    *-cygwin* | *-mingw32*)
       GUI_LINK_OPTS='$(GUI_LINK_OPTS_WIN32)'   # cygwin/mingw libs for win gui
       ;;
    *) echo Unsupported compile setup: GUI library is win32, but target is neither windows nor cygwin.
       ;;
  esac
elif test "$with_macos" = yes; then
  AC_MSG_RESULT(macos)
  AC_DEFINE(BX_WITH_MACOS, 1)
  GUI_OBJS='$(GUI_OBJS_MACOS) control.o'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_MACOS)'
elif test "$with_carbon" = yes; then
  AC_MSG_RESULT(carbon)
  AC_DEFINE(BX_WITH_CARBON, 1)
  GUI_OBJS='$(GUI_OBJS_CARBON) control.o'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_CARBON)'
  PRIMARY_TARGET=bochs.app/.build   # only for carbon application
elif test "$with_term" = yes; then
  AC_MSG_RESULT(term)
  AC_DEFINE(BX_WITH_TERM, 1)
  GUI_OBJS='$(GUI_OBJS_TERM) control.o'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_TERM)'
  use_curses=yes
elif test "$with_wx" = yes; then
  AC_MSG_RESULT(wxWindows)
  if test "$cross_configure" = 1; then
    true  # do not insist, if configuring for another machine
  else
    if test x$ok_wx_version != x1; then
      echo ERROR: A usable version of wxWindows was not found.  
      echo Upgrade the library or choose another gui.
      exit 1
    fi
  fi
  AC_DEFINE(BX_WITH_WX, 1)
  WX_CFLAGS="\`$WX_CONFIG --cflags\`"
  WX_CXXFLAGS="\`$WX_CONFIG --cxxflags\`"
  GUI_LINK_OPTS_WX="\`$WX_CONFIG --libs\`"
  # if gtk-config exists, then add it to the cflags.
  gtkconf=`gtk-config --cflags`
  if test $? = 0; then
    # gtk-config was found and returned 0, so it must return valid output
    WX_CFLAGS="$WX_CFLAGS \`gtk-config --cflags\`"
    WX_CXXFLAGS="$WX_CXXFLAGS \`gtk-config --cflags\`"
  fi
  # GUI_*FLAGS are added to the compilation of every bochs file, not just
  # the files in gui/*.cc.
  GUI_CFLAGS="$CFLAGS $WX_CFLAGS"
  GUI_CXXFLAGS="$CXXFLAGS $WX_CXXFLAGS"
  # wxwindows is the only one without control.o in GUI_OBJS
  GUI_OBJS='$(GUI_OBJS_WX)'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_WX)'
  # using debugger with readline is failing due to thread/signal handler
  # problems.
  if test "$use_readline" = 1 -a "$bx_debugger" = 1; then
    echo ERROR: You have selected wxWindows, the debugger, and the readline 
    echo library.  This combination is known to trigger problems with SIGINT 
    echo handling.  Please run configure again with --disable-readline to 
    echo correct this.
    exit 1
  fi
  case $target in
    *-pc-windows* | *-cygwin* | *-mingw32*)
       EXTRA_BX_OBJS="$EXTRA_BX_OBJS wxbochs_resources.o"
	   GUI_LINK_OPTS_WX="$GUI_LINK_OPTS_WX --subsystem,windows -mwindows"
       ;;
  esac
else
  AC_MSG_RESULT(none)
  AC_DEFINE(BX_WITH_NOGUI, 1)
  GUI_OBJS='$(GUI_OBJS_NOGUI) control.o'
  GUI_LINK_OPTS='$(GUI_LINK_OPTS_NOGUI)'
fi

AC_SUBST(GUI_CFLAGS)
AC_SUBST(GUI_CXXFLAGS)
AC_SUBST(WX_CONFIG)
AC_SUBST(WX_CFLAGS)
AC_SUBST(WX_CXXFLAGS)

# modify settings based on target platform
case "$target" in
  *-macos*)
    AC_DEFINE(BX_HAVE_STRDUP, 0)
    ;;
  *-pc-windows*)
    INSTALL_TARGET='install_win32'
    CC="cl"
    CXX="$CC"
    #C_OPT="/Zi"   # for debugging
    C_OPT="/O2"   # optimize for speed
    CFLAGS="/nologo /G6 /MT /W3 /GX /DNDEBUG /DWIN32 /D_WINDOWS $C_OPT"
    CXXFLAGS="$CFLAGS"
    DASH="/"
    SLASH="\\"
    CXXFP="/Tp"
    CFP="/Tc"
    OFP="/Fo"
    MAKELIB="lib.exe /nologo /subsystem:console /machine:I386 /verbose /out:\$@"
    RMCOMMAND="-del"
    RANLIB="echo"
    #L_OPT="/debug"    # for debugging
    L_OPT=""           # no debug info
    LINK="link $L_OPT /nologo /subsystem:console /incremental:no /machine:I386 /out:\$@ BINMODE.OBJ"
    LINK_CONSOLE=$LINK
    EXE=".exe"
    PRIMARY_TARGET="bochs.exe"
    # also compile niclist if networking is on
    if test "$networking" = yes; then
      PRIMARY_TARGET="$PRIMARY_TARGET niclist.exe"
    fi
    COMMAND_SEPARATOR=""
    CD_UP_ONE="cd .."
    CD_UP_TWO="cd ..\.."
    have_gettimeofday=0  # even though it may exist in build environment
    AC_DEFINE(BX_64BIT_CONSTANTS_USE_LL, 0)
    AC_DEFINE(inline, __inline)
    AC_DEFINE(BX_NO_EMPTY_STRUCTS, 1)
    AC_DEFINE(BX_NO_ATTRIBUTES, 1)
    AC_DEFINE(BX_HAVE_HASH_MAP, 0)
    AC_DEFINE(BX_HAVE_STRTOULL, 0)
    AC_DEFINE(BX_HAVE_STRTOUQ, 0)
    AC_DEFINE(HAVE_LIBREADLINE, 0)
    AC_DEFINE(BX_HAVE_GETTIMEOFDAY, 0)
    ;;
esac

if test "$use_curses" = yes -a "$cross_configure" = 0; then
  AC_CHECK_LIB(curses, mvaddch, GUI_LINK_OPTS_TERM='-lcurses')
  AC_CHECK_LIB(ncurses, mvaddch, GUI_LINK_OPTS_TERM='-lncurses')
  AC_CHECK_LIB(termlib, mvaddch, GUI_LINK_OPTS_TERM='-ltermlib')
  if test "$GUI_LINK_OPTS_TERM" = ""; then
    echo Curses library not found: tried curses, ncurses, and termlib.
    exit 1
  fi
fi

if test "$with_term" = yes; then
  old_LIBS="$LIBS"
  LIBS="$LIBS $GUI_LINK_OPTS_TERM"
  AC_CHECK_FUNCS(color_set, AC_DEFINE(BX_HAVE_COLOR_SET, 1))
  LIBS="$old_LIBS"
fi

if test "$with_rfb" = yes -a "$cross_configure" = 0; then
  # we need the socket function. if cross configuring, don't bother.
  AC_CHECK_FUNCS(socket, have_socket=yes)
  if test "$have_socket" != yes; then
    AC_CHECK_LIB(socket, socket, 
      [ RFB_LIBS="$RFB_LIBS -lsocket" ], 
      [
        echo 'ERROR: socket function required for RFB compile'
        exit 1
      ])
  fi
fi

# The ACX_PTHREAD function was written by 
# Steven G. Johnson <stevenj@alum.mit.edu> and 
# Alejandro Forero Cuervo <bachue@bachue.com> 
# I found it in the ac-archive project on Source Forge.

AC_DEFUN([ACX_PTHREAD], [
AC_REQUIRE([AC_CANONICAL_HOST])
acx_pthread_ok=no

# First, check if the POSIX threads header, pthread.h, is available.
# If it isn't, don't bother looking for the threads libraries.
AC_CHECK_HEADER(pthread.h, , acx_pthread_ok=noheader)

# We must check for the threads library under a number of different
# names; the ordering is very important because some systems
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
# libraries is broken (non-POSIX).

# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
	save_CFLAGS="$CFLAGS"
	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
	CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
	save_LIBS="$LIBS"
	LIBS="$PTHREAD_LIBS $LIBS"
	AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
	AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
	AC_MSG_RESULT($acx_pthread_ok)
	if test x"$acx_pthread_ok" = xno; then
		PTHREAD_LIBS=""
		PTHREAD_CFLAGS=""
	fi
	LIBS="$save_LIBS"
	CFLAGS="$save_CFLAGS"
fi

# Create a list of thread flags to try.  Items starting with a "-" are
# C compiler flags, and other items are library names, except for "none"
# which indicates that we try without any flags at all.

acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt"

# The ordering *is* (sometimes) important.  Some notes on the
# individual items follow:

# pthreads: AIX (must check this before -lpthread)
# none: in case threads are in libc; should be tried before -Kthread and
#       other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
# -pthreads: Solaris/gcc
# -mthreads: Mingw32/gcc, Lynx/gcc
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
#      doesn't hurt to check since this sometimes defines pthreads too;
#      also defines -D_REENTRANT)
# pthread: Linux, etcetera
# --thread-safe: KAI C++

case "${host_cpu}-${host_os}" in
	*solaris*)

	# On Solaris (at least, for some versions), libc contains stubbed
	# (non-functional) versions of the pthreads routines, so link-based
	# tests will erroneously succeed.  (We need to link with -pthread or
	# -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
	# a function called by this macro, so we could check for that, but
	# who knows whether they'll stub that too in a future libc.)  So,
	# we'll just look for -pthreads and -lpthread first:

	acx_pthread_flags="-pthread -pthreads pthread -mt $acx_pthread_flags"
	;;
esac

if test x"$acx_pthread_ok" = xno; then
for flag in $acx_pthread_flags; do

	case $flag in
		none)
		AC_MSG_CHECKING([whether pthreads work without any flags])
		;;

		-*)
		AC_MSG_CHECKING([whether pthreads work with $flag])
		PTHREAD_CFLAGS="$flag"
		;;

		*)
		AC_MSG_CHECKING([for the pthreads library -l$flag])
		PTHREAD_LIBS="-l$flag"
		;;
	esac

	save_LIBS="$LIBS"
	save_CFLAGS="$CFLAGS"
	LIBS="$PTHREAD_LIBS $LIBS"
	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"

	# Check for various functions.  We must include pthread.h,
	# since some functions may be macros.  (On the Sequent, we
	# need a special flag -Kthread to make this header compile.)
	# We check for pthread_join because it is in -lpthread on IRIX
	# while pthread_create is in libc.  We check for pthread_attr_init
	# due to DEC craziness with -lpthreads.  We check for
	# pthread_cleanup_push because it is one of the few pthread
	# functions on Solaris that doesn't have a non-functional libc stub.
	# We try pthread_create on general principles.
	AC_TRY_LINK([#include <pthread.h>],
		    [pthread_t th; pthread_join(th, 0);
		     pthread_attr_init(0); pthread_cleanup_push(0, 0);
		     pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
		    [acx_pthread_ok=yes])

	LIBS="$save_LIBS"
	CFLAGS="$save_CFLAGS"

	AC_MSG_RESULT($acx_pthread_ok)
	if test "x$acx_pthread_ok" = xyes; then
		break;
	fi

	PTHREAD_LIBS=""
	PTHREAD_CFLAGS=""
done
fi

# Various other checks:
if test "x$acx_pthread_ok" = xyes; then
	save_LIBS="$LIBS"
	LIBS="$PTHREAD_LIBS $LIBS"
	save_CFLAGS="$CFLAGS"
	CFLAGS="$CFLAGS $PTHREAD_CFLAGS"

	# Detect AIX lossage: threads are created detached by default
	# and the JOINABLE attribute has a nonstandard name (UNDETACHED).
	AC_MSG_CHECKING([for joinable pthread attribute])
	AC_TRY_LINK([#include <pthread.h>],
		    [int attr=PTHREAD_CREATE_JOINABLE;],
		    ok=PTHREAD_CREATE_JOINABLE, ok=unknown)
	if test x"$ok" = xunknown; then
		AC_TRY_LINK([#include <pthread.h>],
			    [int attr=PTHREAD_CREATE_UNDETACHED;],
			    ok=PTHREAD_CREATE_UNDETACHED, ok=unknown)
	fi
	if test x"$ok" != xPTHREAD_CREATE_JOINABLE; then
		AC_DEFINE(PTHREAD_CREATE_JOINABLE, $ok,
			  [Define to the necessary symbol if this constant
			   uses a non-standard name on your system.])
	fi
	AC_MSG_RESULT(${ok})
	if test x"$ok" = xunknown; then
		AC_MSG_WARN([we do not know how to create joinable pthreads])
	fi

	AC_MSG_CHECKING([if more special flags are required for pthreads])
	flag=no
	case "${host_cpu}-${host_os}" in
		*-aix* | *-freebsd*)     flag="-D_THREAD_SAFE";;
		*solaris* | alpha*-osf*) flag="-D_REENTRANT";;
	esac
	AC_MSG_RESULT(${flag})
	if test "x$flag" != xno; then
		PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
	fi

	LIBS="$save_LIBS"
	CFLAGS="$save_CFLAGS"

	# More AIX lossage: must compile with cc_r
	AC_CHECK_PROG(PTHREAD_CC, cc_r, cc_r, ${CC})
else
	PTHREAD_CC="$CC"
fi

AC_SUBST(PTHREAD_LIBS)
AC_SUBST(PTHREAD_CFLAGS)
AC_SUBST(PTHREAD_CC)

# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$acx_pthread_ok" = xyes; then
	ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
	:
else
	acx_pthread_ok=no
	$2
fi

])dnl ACX_PTHREAD

pthread_ok=no
ACX_PTHREAD([ 
  pthread_ok=yes
  #echo Using PTHREAD_LIBS=$PTHREAD_LIBS
  #echo Using PTHREAD_CFLAGS=$PTHREAD_CFLAGS
  #echo Using PTHREAD_CC=$PTHREAD_CC
  ])


# since RFB (usually) needs pthread library, check that it was found.
# But on win32 platforms, the pthread library is not needed.
if test "$with_rfb" = yes -a "$cross_configure" = 0; then
  if test "$pthread_ok" = yes; then
    RFB_LIBS="$RFB_LIBS $PTHREAD_LIBS"
    CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
    CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
    CC="$PTHREAD_CC"
  else
    case "$target" in
	  *-pc-windows* | *-pc-winnt* | *-cygwin* | *-mingw*)
	    # pthread not needed for win32 platform
		;;
	  *)
    echo ERROR: --with-rfb requires the pthread library, which could not be found.; exit 1
    esac
  fi
fi

# Create some subdirectories for when you run configure from some other 
# directory.
if test ! -d instrument; then mkdir instrument; fi
if test ! -d build; then mkdir build; fi
if test ! -d build/linux; then mkdir build/linux; fi

AC_SUBST(INSTALL_TARGET)
AC_SUBST(INSTALL_LIST_FOR_PLATFORM)
AC_SUBST(RFB_LIBS)
AC_SUBST(GUI_OBJS)
AC_SUBST(DEVICE_LINK_OPTS)
AC_SUBST(GUI_LINK_OPTS)
AC_SUBST(GUI_LINK_OPTS_TERM)
AC_SUBST(GUI_LINK_OPTS_WX)
AC_SUBST(DASH)
AC_SUBST(SLASH)
AC_SUBST(CXXFP)
AC_SUBST(CFP)
AC_SUBST(OFP)
AC_SUBST(MAKELIB)
AC_SUBST(RMCOMMAND)
AC_SUBST(LINK)
AC_SUBST(LINK_CONSOLE)
AC_SUBST(EXE)
AC_SUBST(PRIMARY_TARGET)
AC_SUBST(COMMAND_SEPARATOR)
AC_SUBST(CD_UP_ONE)
AC_SUBST(CD_UP_TWO)
AC_SUBST(VERSION)
AC_SUBST(VER_STRING)
AC_SUBST(REL_STRING)
AC_SUBST(EXTRA_LINK_OPTS)

AC_PATH_PROG(GZIP, gzip)
AC_PATH_PROG(TAR, tar)

AC_OUTPUT(Makefile iodev/Makefile debug/Makefile bios/Makefile \
	 cpu/Makefile memory/Makefile gui/Makefile \
	 disasm/Makefile ${INSTRUMENT_DIR}/Makefile misc/Makefile \
	 fpu/Makefile install-x11-fonts build/linux/bochs-dlx \
	 build/linux/bochs-docs bxversion.h \
	 build/linux/DOC-linux.html \
	 build/macosx/Info.plist)