tinyriscv-openocd/configure.in

AC_PREREQ(2.59)
AC_INIT([openocd], [0.2.0-in-development],
	[OpenOCD Mailing List <openocd-development@lists.berlios.de>])
AC_CONFIG_SRCDIR([src/openocd.c])

AC_CANONICAL_HOST

AC_SEARCH_LIBS([ioperm], [ioperm])
AC_SEARCH_LIBS([dlopen], [dl])

AC_CHECK_HEADERS(jtag_minidriver.h)
AC_CHECK_HEADERS(sys/param.h)
AC_CHECK_HEADERS(sys/time.h)
AC_CHECK_HEADERS(sys/select.h)
AC_CHECK_HEADERS(elf.h)
AC_CHECK_HEADERS(strings.h)
AC_CHECK_HEADERS(stdbool.h)

AC_HEADER_TIME

AC_C_BIGENDIAN

AC_CHECK_FUNCS(strndup)
AC_CHECK_FUNCS(strnlen)
AC_CHECK_FUNCS(gettimeofday)
AC_CHECK_FUNCS(usleep)
AC_CHECK_FUNCS(vasprintf)

build_bitbang=no
build_bitq=no
is_cygwin=no
is_mingw=no
is_win32=no
is_darwin=no
build_release=yes

AC_ARG_ENABLE(release,
	AS_HELP_STRING([--enable-release], [Enable Release Build, default no]),
	[build_release=$enableval], [build_release=no])

if test $cross_compiling = no; then
	if test $build_release = no; then
		# check we can find guess-rev.sh
		AC_CHECK_FILE("$srcdir/guess-rev.sh", build_release=no, build_release=yes)
	fi
fi

# We are not *ALWAYS* being installed in the standard place.
# We may be installed in a "tool-build" specific location.
# Normally with other packages - as part of a tool distro.
# Thus - we should search that 'libdir' also.
#
# And - if we are being installed there - the odds are
# The libraries unique to what we are are there too.
#

# Expand nd deal with NONE - just like configure will do later
OCDprefix=$prefix
OCDxprefix=$exec_prefix
test x"$OCDprefix"  = xNONE && OCDprefix=$ac_default_prefix
# Let make expand exec_prefix.
test x"$OCDxprefix" = xNONE && OCDxprefix="$OCDprefix"

# what matters is the "exec-prefix"
if test "$OCDxprefix" != "$ac_default_prefix"
then
    # We are installing in a non-standard place
    # Nonstandard --prefix and/or --exec-prefix
    # We have an override of some sort.
    # use build specific install library dir
    
    LDFLAGS="$LDFLAGS -L$OCDxprefix/lib"
    # RPATH becomes an issue on Linux only
    if test $host_os = linux-gnu || test $host_os = linux ; then
	LDFLAGS="$LDFLAGS -Wl,-rpath,$OCDxprefix/lib"
    fi
    # The "INCDIR" is also usable
    CFLAGS="$CFLAGS -I$includedir"
fi

AC_ARG_WITH(ftd2xx,
   AS_HELP_STRING([--with-ftd2xx=<PATH>],[This option has been removed.]),
[
# Option Given.
cat << __EOF__

The option: --with-ftd2xx=<PATH> has been removed.
On Linux, the new option is:
  
  --with-ftd2xx-linux-tardir=/path/to/files

Where <path> is the path the the directory where the "tar.gz" file
from FTDICHIP.COM was unpacked, for example:

  --with-ftd2xx-linux-tardir=/home/duane/libftd2xx-linux-tardir=/home/duane/libftd2xx0.4.16

On Cygwin/MingW32, the new option is:

  --with-ftd2xx-win32-zipdir=/path/to/files

Where <path> is the path to the directory where the "zip" file from
FTDICHIP.COM was unpacked, for example:

  --with-ftd2xx-win32-zipdir=/home/duane/ftd2xx.cdm.files

__EOF__

   AC_MSG_ERROR([Sorry Cannot continue])
],
[ 
# Option not given
true
]
)

#========================================
# FTD2XXX support comes in 4 forms.
#    (1) win32 - via a zip file
#    (2) linux - via a tar file
#    (3) linux/cygwin/mingw - via libftdi
#    (4) darwin - installed under /usr/local
#
# In case (1) and (2) we need to know where the package was unpacked.

AC_ARG_WITH(ftd2xx-win32-zipdir,
  AS_HELP_STRING([--with-ftd2xx-win32-zipdir],[Where (CYGWIN/MINGW) the zip file from ftdichip.com was unpacked <default=search>]),
  [
  # option present
  if test -d $with_ftd2xx_win32_zipdir
  then
	with_ftd2xx_win32_zipdir=`cd $with_ftd2xx_win32_zipdir && pwd`
	AC_MSG_NOTICE([Using: ftdichip.com library: $with_ftd2xx_win32_zipdir])
  else
	AC_MSG_ERROR([Parameter to --with-ftd2xx-win32-zipdir is not a dir: $with_ftd2xx_win32_zipdir])
  fi
  ],
  [
  # not given
  true
  ]
)

AC_ARG_WITH(ftd2xx-linux-tardir,
  AS_HELP_STRING([--with-ftd2xx-linux-tardir], [Where (Linux/Unix) the tar file from ftdichip.com was unpacked <default=search>]),
  [
  # Option present
  if test $is_win32 = yes ; then
     AC_MSG_ERROR([The option: --with-ftd2xx-linux-tardir is only usable on linux])
  fi
  if test -d $with_ftd2xx_linux_tardir
  then
	with_ftd2xx_linux_tardir=`cd $with_ftd2xx_linux_tardir && pwd`
	AC_MSG_NOTICE([Using: ftdichip.com library: $with_ftd2xx_linux_tardir])
  else
	AC_MSG_ERROR([Parameter to --with-ftd2xx-linux-tardir is not a dir: $with_ftd2xx_linux_tardir])
  fi
  ],
  [
  # Not given 
  true
  ]
)

AC_ARG_WITH(ftd2xx-lib,
	AS_HELP_STRING([--with-ftd2xx-lib], [Use static or shared ftd2xx libs on default static]),
[
case "$withval" in
static)
	with_ftd2xx_lib=$withval
	;;
shared)
	with_ftd2xx_lib=$withval
	;;
*)
	AC_MSG_ERROR([Option: --with-ftd2xx-lib=static or --with-ftd2xx-lib=shared not, $withval])
	;;
esac
],
[
	# Default is static - it is simpler :-(
	with_ftd2xx_lib=static
]
)

AC_ARG_ENABLE(gccwarnings,
	AS_HELP_STRING([--disable-gccwarnings], [Disable compiler warnings]),
	[gcc_warnings=$enableval], [gcc_warnings=yes])

AC_ARG_ENABLE(wextra,
	AS_HELP_STRING([--disable-wextra], [Disable extra compiler warnings]),
	[gcc_wextra=$enableval], [gcc_wextra=$gcc_warnings])

AC_ARG_ENABLE(werror,
	AS_HELP_STRING([--disable-werror], [Do not treat warnings as errors]),
	[gcc_werror=$enableval], [gcc_werror=$gcc_warnings])

# set default verbose options, overridden by following options
debug_jtag_io=no
debug_usb_io=no
debug_usb_comms=no

AC_ARG_ENABLE(verbose,
	AS_HELP_STRING([--enable-verbose],
  		[Enable verbose JTAG I/O messages (for debugging).]), 
	[
	debug_jtag_io=$enableval
	debug_usb_io=$enableval
	debug_usb_comms=$enableval
	], [])

AC_ARG_ENABLE(verbose_jtag_io,
	AS_HELP_STRING([--enable-verbose-jtag-io],
  		[Enable verbose JTAG I/O messages (for debugging).]), 
	[debug_jtag_io=$enableval], [])
AC_ARG_ENABLE(verbose_usb_io,
	AS_HELP_STRING([--enable-verbose-usb-io],
  		[Enable verbose USB I/O messages (for debugging)]), 
	[debug_usb_io=$enableval], [])
AC_ARG_ENABLE(verbose_usb_comms,
	AS_HELP_STRING([--enable-verbose-usb-comms],
  		[Enable verbose USB communication messages (for debugging)]), 
	[debug_usb_comms=$enableval], [])

AC_MSG_CHECKING([whether to enable verbose JTAG I/O messages]);
AC_MSG_RESULT($debug_jtag_io)
if test $debug_jtag_io = yes; then
  AC_DEFINE([_DEBUG_JTAG_IO_],[1], [Print verbose JTAG I/O messages])
fi

AC_MSG_CHECKING([whether to enable verbose USB I/O messages]);
AC_MSG_RESULT($debug_usb_io)
if test $debug_usb_io = yes; then
  AC_DEFINE([_DEBUG_USB_IO_],[1], [Print verbose USB I/O messages])
fi

AC_MSG_CHECKING([whether to enable verbose USB communication messages]);
AC_MSG_RESULT($debug_usb_comms)
if test $debug_usb_comms = yes; then
  AC_DEFINE([_DEBUG_USB_COMMS_],[1], [Print verbose USB communication messages])
fi


AC_ARG_ENABLE(parport,
  AS_HELP_STRING([--enable-parport], [Enable building the pc parallel port driver]), 
  [build_parport=$enableval], [build_parport=no])

AC_ARG_ENABLE(dummy,
  AS_HELP_STRING([--enable-dummy], [Enable building the dummy port driver]), 
  [build_dummy=$enableval], [build_dummy=no])
  
case "${host_cpu}" in 
  i?86|x86*)
    AC_ARG_ENABLE(parport_ppdev,
      AS_HELP_STRING([--enable-parport_ppdev], [Enable use of ppdev (/dev/parportN) for parport]), 
      [parport_use_ppdev=$enableval], [parport_use_ppdev=no])
    ;;
  *) 
    parport_use_ppdev=yes
    ;;
esac

AC_ARG_ENABLE(ft2232_libftdi,
  AS_HELP_STRING([--enable-ft2232_libftdi], [Enable building support for FT2232 based devices using the libftdi driver, opensource alternate of FTD2XX]), 
  [build_ft2232_libftdi=$enableval], [build_ft2232_libftdi=no])

AC_ARG_ENABLE(ft2232_ftd2xx,
  AS_HELP_STRING([--enable-ft2232_ftd2xx], [Enable building support for FT2232 based devices using the FTD2XX driver from ftdichip.com]), 
  [build_ft2232_ftd2xx=$enableval], [build_ft2232_ftd2xx=no])
 
AC_ARG_ENABLE(amtjtagaccel,
  AS_HELP_STRING([--enable-amtjtagaccel], [Enable building the Amontec JTAG-Accelerator driver]), 
  [build_amtjtagaccel=$enableval], [build_amtjtagaccel=no])

AC_ARG_ENABLE(ecosboard,
  AS_HELP_STRING([--enable-ecosboard], [Enable building support for eCosBoard based JTAG debugger]), 
  [build_ecosboard=$enableval], [build_ecosboard=no])

AC_ARG_ENABLE(ioutil,
  AS_HELP_STRING([--enable-ioutil], [Enable ioutil functions - useful for standalone OpenOCD implementations]), 
  [build_ioutil=$enableval], [build_ioutil=no])

AC_ARG_ENABLE(httpd,
  AS_HELP_STRING([--enable-httpd], [Enable builtin httpd server - useful for standalone OpenOCD implementations]), 
  [build_httpd=$enableval], [build_httpd=no])

case "${host_cpu}" in 
  arm*)
    AC_ARG_ENABLE(ep93xx,
      AS_HELP_STRING([--enable-ep93xx], [Enable building support for EP93xx based SBCs]), 
      [build_ep93xx=$enableval], [build_ep93xx=no])

    AC_ARG_ENABLE(at91rm9200,
      AS_HELP_STRING([--enable-at91rm9200], [Enable building support for AT91RM9200 based SBCs]),
      [build_at91rm9200=$enableval], [build_at91rm9200=no])
    ;;
    
  *) 
    build_ep93xx=no
    build_at91rm9200=no
    ;;
esac

AC_ARG_ENABLE(gw16012,
  AS_HELP_STRING([--enable-gw16012], [Enable building support for the Gateworks GW16012 JTAG Programmer]),
  [build_gw16012=$enableval], [build_gw16012=no])

AC_ARG_ENABLE(presto_libftdi,
  AS_HELP_STRING([--enable-presto_libftdi], [Enable building support for ASIX Presto Programmer using the libftdi driver]),
  [build_presto_libftdi=$enableval], [build_presto_libftdi=no])

AC_ARG_ENABLE(presto_ftd2xx,
  AS_HELP_STRING([--enable-presto_ftd2xx], [Enable building support for ASIX Presto Programmer using the FTD2XX driver]),
  [build_presto_ftd2xx=$enableval], [build_presto_ftd2xx=no])

AC_ARG_ENABLE(usbprog,
  AS_HELP_STRING([--enable-usbprog], [Enable building support for the usbprog JTAG Programmer]),
  [build_usbprog=$enableval], [build_usbprog=no])

AC_ARG_ENABLE(oocd_trace,
  AS_HELP_STRING([--enable-oocd_trace], [Enable building support for the OpenOCD+trace ETM capture device]),
  [build_oocd_trace=$enableval], [build_oocd_trace=no])

AC_ARG_ENABLE(jlink,
  AS_HELP_STRING([--enable-jlink], [Enable building support for the Segger J-Link JTAG Programmer]),
  [build_jlink=$enableval], [build_jlink=no])

AC_ARG_ENABLE(vsllink,
  AS_HELP_STRING([--enable-vsllink], [Enable building support for the Versaloon-Link JTAG Programmer]),
  [build_vsllink=$enableval], [build_vsllink=no])

AC_ARG_ENABLE(rlink,
  AS_HELP_STRING([--enable-rlink], [Enable building support for the Raisonance RLink JTAG Programmer]),
  [build_rlink=$enableval], [build_rlink=no])

AC_ARG_ENABLE(arm-jtag-ew,
  AS_HELP_STRING([--enable-arm-jtag-ew], [Enable building support for the Olimex ARM-JTAG-EW Programmer]),
  [build_armjtagew=$enableval], [build_armjtagew=no])

case $host in 
  *-cygwin*) 
    is_win32=yes

    AC_ARG_ENABLE(parport_giveio,
    AS_HELP_STRING([--enable-parport_giveio], [Enable use of giveio for parport instead of ioperm]), 
    [parport_use_giveio=$enableval], [parport_use_giveio=no])
	
	AC_COMPILE_IFELSE(AC_LANG_PROGRAM([],[return __MINGW32__;]),[is_mingw=yes],[is_mingw=no])
	if test $is_mingw = yes; then
		AC_DEFINE(IS_MINGW, 1, [1 if building for MinGW.])
		parport_use_giveio=yes
		is_cygwin=no
	else
		is_cygwin=yes
		AC_DEFINE(IS_CYGWIN, 1, [1 if building for Cygwin.])
	fi
	
    AC_DEFINE(IS_WIN32, 1, [1 if building for Win32.])
    AC_DEFINE(IS_DARWIN, 0, [0 if not building for Darwin.])
    ;; 
  *-mingw*) 
    is_mingw=yes
    is_win32=yes

    parport_use_giveio=yes

    AC_DEFINE(IS_MINGW, 1, [1 if building for MinGW.])
    AC_DEFINE(IS_WIN32, 1, [1 if building for Win32.])
    AC_DEFINE(IS_DARWIN, 0, [0 if not building for Darwin.])
    ;; 
  *darwin*)
    is_darwin=yes

    parport_use_giveio=no

    AC_DEFINE(IS_CYGWIN, 0, [0 if not building for Cygwin.])
    AC_DEFINE(IS_WIN32, 0, [0 if not building for Win32.])
    AC_DEFINE(IS_DARWIN, 1, [1 if building for Darwin.])
    ;;
  *) 
	parport_use_giveio=no
    AC_DEFINE(IS_CYGWIN, 0, [0 if not building for Cygwin.])
    AC_DEFINE(IS_WIN32, 0, [0 if not building for Win32.])
    AC_DEFINE(IS_DARWIN, 0, [0 if not building for Darwin.])
    ;;
esac

if test $build_parport = yes; then
  build_bitbang=yes
  AC_DEFINE(BUILD_PARPORT, 1, [1 if you want parport.])
else
  AC_DEFINE(BUILD_PARPORT, 0, [0 if you don't want parport.])
fi

if test $build_dummy = yes; then
  build_bitbang=yes
  AC_DEFINE(BUILD_DUMMY, 1, [1 if you want dummy driver.])
else
  AC_DEFINE(BUILD_DUMMY, 0, [0 if you don't want dummy driver.])
fi

if test $build_ep93xx = yes; then
  build_bitbang=yes
  AC_DEFINE(BUILD_EP93XX, 1, [1 if you want ep93xx.])
else
  AC_DEFINE(BUILD_EP93XX, 0, [0 if you don't want ep93xx.])
fi

if test $build_ecosboard = yes; then
  build_bitbang=yes
  AC_DEFINE(BUILD_ECOSBOARD, 1, [1 if you want eCosBoard.])
else
  AC_DEFINE(BUILD_ECOSBOARD, 0, [0 if you don't want eCosBoard.])
fi

if test $build_ioutil = yes; then
  AC_DEFINE(BUILD_IOUTIL, 1, [1 if you want ioutils.])
else
  AC_DEFINE(BUILD_IOUTIL, 0, [0 if you don't want ioutils.])
fi

if test $build_httpd = yes; then
  AC_DEFINE(BUILD_HTTPD, 1, [1 if you want httpd.])
else
  AC_DEFINE(BUILD_HTTPD, 0, [0 if you don't want httpd.])
fi

if test $build_at91rm9200 = yes; then
  build_bitbang=yes
  AC_DEFINE(BUILD_AT91RM9200, 1, [1 if you want at91rm9200.])
else
  AC_DEFINE(BUILD_AT91RM9200, 0, [0 if you don't want at91rm9200.])
fi

if test $parport_use_ppdev = yes; then
  AC_DEFINE(PARPORT_USE_PPDEV, 1, [1 if you want parport to use ppdev.])
else
  AC_DEFINE(PARPORT_USE_PPDEV, 0, [0 if you don't want parport to use ppdev.])
fi

if test $parport_use_giveio = yes; then
  AC_DEFINE(PARPORT_USE_GIVEIO, 1, [1 if you want parport to use giveio.])
else
  AC_DEFINE(PARPORT_USE_GIVEIO, 0, [0 if you don't want parport to use giveio.])
fi

if test $build_bitbang = yes; then
  AC_DEFINE(BUILD_BITBANG, 1, [1 if you want a bitbang interface.])
else
  AC_DEFINE(BUILD_BITBANG, 0, [0 if you don't want a bitbang interface.])
fi

if test $build_ft2232_libftdi = yes; then
  AC_DEFINE(BUILD_FT2232_LIBFTDI, 1, [1 if you want libftdi ft2232.])
else
  AC_DEFINE(BUILD_FT2232_LIBFTDI, 0, [0 if you don't want libftdi ft2232.])
fi

if test $build_ft2232_ftd2xx = yes; then
  AC_DEFINE(BUILD_FT2232_FTD2XX, 1, [1 if you want ftd2xx ft2232.])
else
  AC_DEFINE(BUILD_FT2232_FTD2XX, 0, [0 if you don't want ftd2xx ft2232.])
fi

if test $build_amtjtagaccel = yes; then
  AC_DEFINE(BUILD_AMTJTAGACCEL, 1, [1 if you want the Amontec JTAG-Accelerator driver.])
else
  AC_DEFINE(BUILD_AMTJTAGACCEL, 0, [0 if you don't want the Amontec JTAG-Accelerator driver.])
fi

if test $build_gw16012 = yes; then
  AC_DEFINE(BUILD_GW16012, 1, [1 if you want the Gateworks GW16012 driver.])
else
  AC_DEFINE(BUILD_GW16012, 0, [0 if you don't want the Gateworks GW16012 driver.])
fi

if test $build_presto_libftdi = yes; then
  build_bitq=yes
  AC_DEFINE(BUILD_PRESTO_LIBFTDI, 1, [1 if you want the ASIX PRESTO driver using libftdi.])
else
  AC_DEFINE(BUILD_PRESTO_LIBFTDI, 0, [0 if you don't want the ASIX PRESTO driver using libftdi.])
fi

if test $build_presto_ftd2xx = yes; then
  build_bitq=yes
  AC_DEFINE(BUILD_PRESTO_FTD2XX, 1, [1 if you want the ASIX PRESTO driver using FTD2XX.])
else
  AC_DEFINE(BUILD_PRESTO_FTD2XX, 0, [0 if you don't want the ASIX PRESTO driver using FTD2XX.])
fi

if test $build_bitq = yes; then
  AC_DEFINE(BUILD_BITQ, 1, [1 if you want a bitq interface.])
else
  AC_DEFINE(BUILD_BITQ, 0, [0 if you don't want a bitq interface.])
fi

if test $build_usbprog = yes; then
  AC_DEFINE(BUILD_USBPROG, 1, [1 if you want the usbprog JTAG driver.])
else
  AC_DEFINE(BUILD_USBPROG, 0, [0 if you don't want the usbprog JTAG driver.])
fi

if test $build_oocd_trace = yes; then
  AC_DEFINE(BUILD_OOCD_TRACE, 1, [1 if you want the OpenOCD+trace ETM capture driver.])
else
  AC_DEFINE(BUILD_OOCD_TRACE, 0, [0 if you don't want the OpenOCD+trace ETM capture driver.])
fi

if test $build_jlink = yes; then
  AC_DEFINE(BUILD_JLINK, 1, [1 if you want the J-Link JTAG driver.])
else
  AC_DEFINE(BUILD_JLINK, 0, [0 if you don't want the J-Link JTAG driver.])
fi

if test $build_vsllink = yes; then
  AC_DEFINE(BUILD_VSLLINK, 1, [1 if you want the Versaloon-Link JTAG driver.])
else
  AC_DEFINE(BUILD_VSLLINK, 0, [0 if you don't want the Versaloon-Link JTAG driver.])
fi

if test $build_rlink = yes; then
  AC_DEFINE(BUILD_RLINK, 1, [1 if you want the RLink JTAG driver.])
else
  AC_DEFINE(BUILD_RLINK, 0, [0 if you don't want the RLink JTAG driver.])
fi

if test $build_armjtagew = yes; then
  AC_DEFINE(BUILD_ARMJTAGEW, 1, [1 if you want the ARM-JTAG-EW JTAG driver.])
else
  AC_DEFINE(BUILD_ARMJTAGEW, 0, [0 if you don't want the ARM-JTAG-EW JTAG driver.])
fi

#-- Deal with MingW/Cygwin FTD2XX issues

if test $is_win32 = yes; then
if test "${with_ftd2xx_linux_tardir+set}" = set
then
   AC_MSG_ERROR([The option: with_ftd2xx_linux_tardir is for LINUX only.])
fi

if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
AC_MSG_CHECKING([for ftd2xx.lib exists (win32)])

   # if we are given a zipdir...
   if test "${with_ftd2xx_win32_zipdir+set}" = set
   then
      # Set the CFLAGS for "ftd2xx.h"
      f=$with_ftd2xx_win32_zipdir/ftd2xx.h
      if test ! -f $f ; then
      	 AC_MSG_ERROR([File: $f cannot be found])
      fi
      CFLAGS="$CFLAGS -I$with_ftd2xx_win32_zipdir"

      # And calculate the LDFLAGS for the machine
      case "$host_cpu" in
      i?86|x86_*)
	LDFLAGS="$LDFLAGS -L$with_ftd2xx_win32_zipdir/i386"
	LIBS="$LIBS -lftd2xx"
	f=$with_ftd2xx_win32_zipdir/i386/ftd2xx.lib
	;;
      amd64)
	LDFLAGS="$LDFLAGS -L$with_ftd2xx_win32_zipdir/amd64"
	LIBS="$LIBS -lftd2xx"
	f=$with_ftd2xx_win32_zipdir/amd64/ftd2xx.lib
	;;
      *)
	AC_MSG_ERROR([Unknown Win32 host cpu: $host_cpu])
        ;;
       esac
       if test ! -f $f ; then
       	  AC_MSG_ERROR([Library: $f not found])
       fi
   else
      LIBS="$LIBS -lftd2xx"
      AC_MSG_WARN([ASSUMPTION: The (win32) FTDICHIP.COM files: ftd2xx.h and ftd2xx.lib are in a proper place])
   fi
fi
fi

if test $is_darwin = yes ; then
if test "${with_ftd2xx_win32_zipdir+set}" = set
then
   AC_MSG_ERROR([The option: --with-ftd2xx-win32-zipdir is for win32 only])
fi
if test "${with_ftd2xx_linux_tardir+set}" = set
then
   AC_MSG_ERROR([The option: with_ftd2xx_linux_tardir is for LINUX only.])
fi

if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
   AC_MSG_CHECKING([for libftd2xx.a (darwin)])

   if test ! -f /usr/local/include/ftd2xx.h ; then
      AC_MSG_ERROR([ftd2xx library from FTDICHIP.com seems to be missing, cannot find: /usr/local/include/ftd2xx.h])
   fi

   CFLAGS="$CFLAGS -I/usr/local/include"
   LDFLAGS="$LDFLAGS -L/usr/local/lib"
   LIBS="$LIBS -lftd2xx"
   AC_MSG_RESULT([-L/usr/local/lib -lftd2xx])
fi
fi

if test $is_win32 = no && test $is_darwin = no ; then

if test "${with_ftd2xx_win32_zipdir+set}" = set
then
   AC_MSG_ERROR([The option: --with-ftd2xx-win32-zipdir is for win32 only])
fi

if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
   # Must be linux
   if test $host_os != linux-gnu && test $host_os != linux ; then
      AC_MSG_ERROR([The (linux) ftd2xx library from FTDICHIP.com is linux only. Try --enable-ft2232-libftdi instead])
   fi
   # Are we given a TAR directory?
   if test "${with_ftd2xx_linux_tardir+set}" = set
   then
        AC_MSG_CHECKING([uninstalled ftd2xx distribution])
	# The .H file is simple..
	FTD2XX_H=$with_ftd2xx_linux_tardir/ftd2xx.h
	if test ! -f "${FTD2XX_H}"; then
	   AC_MSG_ERROR([Option: --with-ftd2xx-linux-tardir appears wrong, cannot find: ${FTD2XX_H}])
	fi
	CFLAGS="$CFLAGS -I$with_ftd2xx_linux_tardir"
	FTD2XX_LDFLAGS="-L$with_ftd2xx_linux_tardir"
	FTD2XX_LIB="-lftd2xx"
	if test $with_ftd2xx_lib != shared; then
	    # Test #1 - Future proof - if/when ftdichip fixes their distro.
	    # Try it with the simple ".a" suffix.
	    FTD2XX_LIB="$with_ftd2xx_linux_tardir/static_lib/libftd2xx.a"
	    if test -f "${FTD2XX_LIB}"; then
	       FTD2XX_LDFLAGS="${FTD2XX_LDFLAGS}/static_lib"
            else
	       # Test Number2.
	       # Grr.. perhaps it exists as a version number?
	       FTD2XX_LIB="$with_ftd2xx_linux_tardir/static_lib/libftd2xx.a.*.*.*"
	       count=`ls ${FTD2XX_LIB} | wc -l`
	       if test $count -gt 1 ; then
	          AC_MSG_ERROR([Multiple libftd2xx.a files found in: $with_ftd2xx_linux_tardir/static_lib sorry cannot handle this yet])
	       fi
	       if test $count -ne 1 ; then
	          AC_MSG_ERROR([Not found: $f, option: --with-ftd2xx-linux-tardir appears to be wrong])
	       fi
	       # Because the "-l" rules do not understand version numbers...
	       # we will just stuff the absolute path onto the LIBS variable
	       FTD2XX_LIB="`ls ${FTD2XX_LIB}` -lpthread"
	       FTD2XX_LDFLAGS=""
	    fi
        fi
	LDFLAGS="${LDFLAGS} ${FTD2XX_LDFLAGS}"
	LIBS="${LIBS} ${FTD2XX_LIB}"
	AC_MSG_RESULT([${FTD2XX_LDFLAGS} ${FTD2XX_LIB}])
   else
	AC_CHECK_HEADER([ftd2xx.h],[],[
			AC_MSG_ERROR([You seem to be missing the FTD2xx driver header file.])
		])
	AC_SEARCH_LIBS([FT_GetLibraryVersion],[ftd2xx],,[
			AC_MSG_ERROR([You appear to be missing the FTD2xx driver library.])
		],[])
   fi
fi
fi

if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes; then

# Before we go any further - make sure we can *BUILD* and *RUN*
# a simple app with the "ftd2xx.lib" file - in what ever form we where given
# We should be able to compile, link and run this test program now
  AC_MSG_CHECKING([whether ftd2xx library works])

#
# Save the LDFLAGS for later..
LDFLAGS_SAVE=$LDFLAGS
CFLAGS_SAVE=$CFLAGS
_LDFLAGS=`eval echo $LDFLAGS`
_CFLAGS=`eval echo $CFLAGS`
LDFLAGS=$_LDFLAGS
CFLAGS=$_CFLAGS
  AC_RUN_IFELSE(
[
#include "confdefs.h"
#if IS_WIN32
#include "windows.h"
#endif
#include <stdio.h>
#include <ftd2xx.h>

int
main( int argc, char **argv )
{
	DWORD x;
	FT_GetLibraryVersion( &x );
	return 0;
}
], [ AC_MSG_RESULT([Success!])] , [ AC_MSG_ERROR([Cannot build & run test program using ftd2xx.lib]) ] )
LDFLAGS=$LDFLAGS_SAVE
CFLAGS=$CFLAGS_SAVE
fi

if test $build_ft2232_libftdi = yes ; then
   # We assume: the package is preinstalled in the proper place
   # these present as 2 libraries..
   LIBS="$LIBS -lftdi -lusb"
   # 
   # Try to build a small program.
   AC_MSG_CHECKING([Build & Link with libftdi...])

LDFLAGS_SAVE=$LDFLAGS
CFLAGS_SAVE=$CFLAGS
_LDFLAGS=`eval echo $LDFLAGS`
_CFLAGS=`eval echo $CFLAGS`
LDFLAGS=$_LDFLAGS
CFLAGS=$_CFLAGS

   AC_RUN_IFELSE(
[
#include <stdio.h>
#include <ftdi.h>

int
main( int argc, char **argv )
{
	struct ftdi_context *p;
	p = ftdi_new();
	if( p != NULL ){
	    return 0;
	} else {
	    fprintf( stderr, "calling ftdi_new() failed\n");
	    return 1;
        }
}
]
, 
[ AC_MSG_RESULT([Success]) ]
, 
[ AC_MSG_ERROR([Cannot build & run test program using libftdi]) ] )
# Restore the 'unexpanded ldflags'
LDFLAGS=$LDFLAGS_SAVE
CFLAGS=$CFLAGS_SAVE
fi

# check for usb.h when a driver will require it
if test $build_jlink = yes -o $build_vsllink = yes -o $build_usbprog = yes -o \
	$build_rlink = yes -o $build_armjtagew = yes
then 
  AC_CHECK_HEADERS([usb.h],[],
	[AC_MSG_ERROR([usb.h is required to build some OpenOCD driver(s)])])
fi

AM_CONFIG_HEADER(config.h)
AM_INIT_AUTOMAKE([-Wall -Wno-portability])
AM_MAINTAINER_MODE

AM_CONDITIONAL(RELEASE, test $build_release = yes)
AM_CONDITIONAL(PARPORT, test $build_parport = yes)
AM_CONDITIONAL(DUMMY, test $build_dummy = yes)
AM_CONDITIONAL(GIVEIO, test $parport_use_giveio = yes)
AM_CONDITIONAL(EP93XX, test $build_ep93xx = yes)
AM_CONDITIONAL(ECOSBOARD, test $build_ecosboard = yes)
AM_CONDITIONAL(IOUTIL, test $build_ioutil = yes)
AM_CONDITIONAL(HTTPD, test $build_httpd = yes)
AM_CONDITIONAL(AT91RM9200, test $build_at91rm9200 = yes)
AM_CONDITIONAL(BITBANG, test $build_bitbang = yes)
AM_CONDITIONAL(FT2232_LIBFTDI, test $build_ft2232_libftdi = yes)
AM_CONDITIONAL(FT2232_FTD2XX, test $build_ft2232_ftd2xx = yes)
AM_CONDITIONAL(AMTJTAGACCEL, test $build_amtjtagaccel = yes)
AM_CONDITIONAL(GW16012, test $build_gw16012 = yes)
AM_CONDITIONAL(PRESTO_LIBFTDI, test $build_presto_libftdi = yes)
AM_CONDITIONAL(PRESTO_FTD2XX, test $build_presto_ftd2xx = yes)
AM_CONDITIONAL(USBPROG, test $build_usbprog = yes)
AM_CONDITIONAL(OOCD_TRACE, test $build_oocd_trace = yes)
AM_CONDITIONAL(JLINK, test $build_jlink = yes)
AM_CONDITIONAL(VSLLINK, test $build_vsllink = yes)
AM_CONDITIONAL(RLINK, test $build_rlink = yes)
AM_CONDITIONAL(ARMJTAGEW, test $build_armjtagew = yes)
AM_CONDITIONAL(IS_CYGWIN, test $is_cygwin = yes)
AM_CONDITIONAL(IS_MINGW, test $is_mingw = yes)
AM_CONDITIONAL(IS_WIN32, test $is_win32 = yes)
AM_CONDITIONAL(IS_DARWIN, test $is_darwin = yes)
AM_CONDITIONAL(BITQ, test $build_bitq = yes)

AC_LANG_C
AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_RANLIB

# Look for environ alternatives.  Possibility #1: is environ in unistd.h?
AC_MSG_CHECKING([for environ in unistd.h])
AC_COMPILE_IFELSE([
#define _GNU_SOURCE
#include <unistd.h>
int main(int argc, char **argv) { char **ep = environ; }
  ], [
    AC_MSG_RESULT([yes])
    has_environ=yes
  ], [
    AC_MSG_RESULT([no])

    # Possibility #2: can environ be found in an available library?
    AC_MSG_CHECKING([for extern environ])
    AC_LINK_IFELSE([
extern char **environ;
int main(int argc, char **argv) { char **ep = environ; }
      ], [
        AC_DEFINE(NEED_ENVIRON_EXTERN, [1], [Must declare 'environ' to use it.])
        has_environ=yes
      ], [
        has_environ=no
      ])
    AC_MSG_RESULT([${has_environ}])
  ])

if test "${has_environ}" != "yes" ; then
     AC_MSG_FAILURE([Could not find 'environ' in unistd.h or available libraries.]) 
fi


# set default gcc warnings
GCC_WARNINGS="-Wall -Wstrict-prototypes -Wformat-security"
if test "${gcc_wextra}" = yes; then
	GCC_WARNINGS="${GCC_WARNINGS} -Wextra -Wno-unused-parameter"
	GCC_WARNINGS="${GCC_WARNINGS} -Wbad-function-cast"
	GCC_WARNINGS="${GCC_WARNINGS} -Wcast-align"
	GCC_WARNINGS="${GCC_WARNINGS} -Wredundant-decls"
fi
if test "${gcc_werror}" = yes; then
	GCC_WARNINGS="${GCC_WARNINGS} -Werror"
fi

# overide default gcc cflags
if test $gcc_warnings = yes; then
	CFLAGS="$CFLAGS $GCC_WARNINGS"
fi

# Setup for compiling build tools
AC_MSG_CHECKING([for a C compiler for build tools])
if test $cross_compiling = yes; then
	AC_CHECK_PROGS(CC_FOR_BUILD, gcc cc)
	CFLAGS_FOR_BUILD="-g -O2 $GCC_WARNINGS"
else
	CC_FOR_BUILD=$CC
	CFLAGS_FOR_BUILD=$CFLAGS
fi

AC_MSG_RESULT([$CC_FOR_BUILD])
AC_SUBST(CC_FOR_BUILD)
AC_SUBST(CFLAGS_FOR_BUILD)

AC_MSG_CHECKING([for suffix of executable build tools])
if test $cross_compiling = yes; then
	cat >conftest.c <<\_______EOF
int main ()
{
	exit (0);
}
_______EOF
for i in .exe ""; do
    compile="$CC_FOR_BUILD conftest.c -o conftest$i"
    if AC_TRY_EVAL(compile); then
		if (./conftest) 2>&AC_FD_CC; then
			EXEEXT_FOR_BUILD=$i
			break
			fi
		fi
done
	rm -f conftest*
	if test "${EXEEXT_FOR_BUILD+set}" != set; then
		AC_MSG_ERROR([Cannot determine suffix of executable build tools])
	fi
else
	EXEEXT_FOR_BUILD=$EXEEXT
fi
AC_MSG_RESULT([$EXEEXT_FOR_BUILD])
AC_SUBST(EXEEXT_FOR_BUILD)

AC_OUTPUT(Makefile src/Makefile src/helper/Makefile src/jtag/Makefile src/xsvf/Makefile src/svf/Makefile src/target/Makefile src/server/Makefile src/flash/Makefile src/pld/Makefile doc/Makefile)