ARM: add "core_type" field to "struct arm"
[openocd.git] / configure.in
index 07203e137c1efa7643daa3c950d6028c53869c60..8ba8951234a00821789d0aa9a8f18fe138cc4c54 100644 (file)
-AC_PREREQ(2.59)
-AC_INIT([openocd], [0.2.0-in-development],
-       [OpenOCD Mailing List <openocd-development@lists.berlios.de>])
+AC_PREREQ(2.60)
+AC_INIT([openocd], [0.4.0-dev],
+  [OpenOCD Mailing List <openocd-development@lists.berlios.de>])
 AC_CONFIG_SRCDIR([src/openocd.c])
 
-AC_CANONICAL_HOST
+AM_INIT_AUTOMAKE([-Wall -Wno-portability dist-bzip2 dist-zip])
+AM_MAINTAINER_MODE
+
+AM_CONFIG_HEADER(config.h)
+AH_BOTTOM([
+#include "system.h"
+#include "replacements.h"
+])
+
+AC_LANG_C
+AC_PROG_CC
+AC_PROG_CC_C99
+AM_PROG_CC_C_O
+AC_PROG_RANLIB
+
+dnl disable checks for C++, Fortran and GNU Java Compiler
+m4_defun([_LT_AC_LANG_CXX_CONFIG], [:])
+m4_defun([_LT_AC_LANG_F77_CONFIG], [:])
+m4_defun([_LT_AC_LANG_GCJ_CONFIG], [:])
+AC_DISABLE_SHARED
+AC_PROG_LIBTOOL
+AC_SUBST(LIBTOOL_DEPS)
+
+
+dnl configure checks required for Jim files (these are obsolete w/ C99)
+AC_C_CONST
+AC_TYPE_LONG_LONG_INT
+
 
 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(sys/socket.h)
+AC_CHECK_HEADERS(arpa/inet.h, [], [], [dnl
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+])
 AC_CHECK_HEADERS(elf.h)
+AC_CHECK_HEADERS(dirent.h)
+AC_CHECK_HEADERS(fcntl.h)
+AC_CHECK_HEADERS(ifaddrs.h, [], [], [dnl
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+])
+AC_CHECK_HEADERS(malloc.h)
+AC_CHECK_HEADERS(netdb.h)
+AC_CHECK_HEADERS([netinet/in.h], [], [], [dnl
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+])
+AC_CHECK_HEADERS(netinet/tcp.h, [], [], [dnl
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+])
+AC_CHECK_HEADERS(pthread.h)
 AC_CHECK_HEADERS(strings.h)
-AC_CHECK_HEADERS(stdbool.h)
+AC_CHECK_HEADERS(sys/ioctl.h)
+AC_CHECK_HEADERS(sys/param.h)
+AC_CHECK_HEADERS(sys/poll.h)
+AC_CHECK_HEADERS(sys/select.h)
+AC_CHECK_HEADERS(sys/stat.h)
+AC_CHECK_HEADERS(sys/time.h)
+AC_CHECK_HEADERS(sys/types.h)
+AC_CHECK_HEADERS(unistd.h)
+AC_CHECK_HEADERS([net/if.h], [], [], [dnl
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+])
 
+AC_HEADER_ASSERT
+AC_HEADER_STDBOOL
 AC_HEADER_TIME
 
 AC_C_BIGENDIAN
@@ -32,17 +140,20 @@ 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
+  # guess-rev.sh only exists in the repository, not in the released archives
+  AC_CHECK_FILE("$srcdir/guess-rev.sh", has_guess_rev=yes, has_guess_rev=no)
+
+  AC_MSG_CHECKING([whether to build a release])
+  if test $has_guess_rev = no; then
+    build_release=yes
+  else
+    build_release=no
+  fi
+  AC_MSG_RESULT($build_release)
+else
+  build_release=yes
 fi
 
 # We are not *ALWAYS* being installed in the standard place.
@@ -68,11 +179,11 @@ then
     # 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,$OCDxprefix/lib"
+      LDFLAGS="$LDFLAGS -Wl,-rpath,$OCDxprefix/lib"
     fi
     # The "INCDIR" is also usable
     CFLAGS="$CFLAGS -I$includedir"
@@ -80,19 +191,19 @@ 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
+  --with-ftd2xx-linux-tardir=${HOME}/libftd2xx0.4.16
 
 On Cygwin/MingW32, the new option is:
 
@@ -101,17 +212,12 @@ On Cygwin/MingW32, the new option is:
 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
+  --with-ftd2xx-win32-zipdir=${HOME}/ftd2xx.cdm.files
 
 __EOF__
 
    AC_MSG_ERROR([Sorry Cannot continue])
-],
-[ 
-# Option not given
-true
-]
-)
+  ], [true])
 
 #========================================
 # FTD2XXX support comes in 4 forms.
@@ -128,17 +234,12 @@ AC_ARG_WITH(ftd2xx-win32-zipdir,
   # 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])
+    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])
+    AC_MSG_ERROR([Parameter to --with-ftd2xx-win32-zipdir is not a dir: $with_ftd2xx_win32_zipdir])
   fi
-  ],
-  [
-  # not given
-  true
-  ]
-)
+  ], [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>]),
@@ -149,50 +250,62 @@ AC_ARG_WITH(ftd2xx-linux-tardir,
   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])
+    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])
+    AC_MSG_ERROR([Parameter to --with-ftd2xx-linux-tardir is not a dir: $with_ftd2xx_linux_tardir])
   fi
-  ],
-  [
-  # Not given 
-  true
-  ]
-)
+  ], [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, $withval])
-       ;;
-esac
-],
-[
-       # Default is static - it is simpler :-(
-       with_ftd2xx_lib=static
-]
-)
+  AS_HELP_STRING([--with-ftd2xx-lib],
+    [Use static or shared ftd2xx libs on default static]),
+  [
+  case "$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, $withval])
+    ;;
+  esac
+  ], [
+  # Default is static - it is simpler :-(
+  with_ftd2xx_lib=static
+  ])
+
+
+AC_ARG_ENABLE(doxygen-html,
+  AS_HELP_STRING([--disable-doxygen-html],
+    [Disable building Doxygen manual as HTML.]),
+  [doxygen_as_html=$enableval], [doxygen_as_html=yes])
+AC_SUBST(doxygen_as_html)
+AC_MSG_CHECKING([whether to build Doxygen as HTML])
+AC_MSG_RESULT($doxygen_as_html)
+
+AC_ARG_ENABLE(doxygen-pdf,
+  AS_HELP_STRING([--enable-doxygen-pdf],
+    [Enable building Doxygen manual as PDF.]),
+  [doxygen_as_pdf=$enableval], [doxygen_as_pdf=no])
+AC_SUBST(doxygen_as_pdf)
+AC_MSG_CHECKING([whether to build Doxygen as PDF])
+AC_MSG_RESULT($doxygen_as_pdf)
+
 
 AC_ARG_ENABLE(gccwarnings,
-       AS_HELP_STRING([--disable-gccwarnings], [Disable compiler warnings]),
-       [gcc_warnings=$enableval], [gcc_warnings=yes])
+  AS_HELP_STRING([--disable-gccwarnings], [Disable compiler warnings]),
+  [gcc_warnings=$enableval], [gcc_warnings=yes])
 
 AC_ARG_ENABLE(wextra,
-       AS_HELP_STRING([--disable-wextra], [Disable extra compiler warnings]),
-       [gcc_wextra=$enableval], [gcc_wextra=$gcc_warnings])
+  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])
+  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
@@ -200,26 +313,26 @@ 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=$enableval
-       ], [])
+  AS_HELP_STRING([--enable-verbose],
+      [Enable verbose JTAG I/O messages (for debugging).]),
+  [
+  debug_jtag_io=$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=$enableval], [])
+  AS_HELP_STRING([--enable-verbose-jtag-io],
+      [Enable verbose JTAG I/O messages (for debugging).]),
+  [debug_jtag_io=$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=$enableval], [])
+  AS_HELP_STRING([--enable-verbose-usb-io],
+      [Enable verbose USB I/O messages (for debugging)]),
+  [debug_usb_io=$enableval], [])
 AC_ARG_ENABLE(verbose_usb_comms,
-       AS_HELP_STRING([--enable-verbose-usb-comms],
-               [Enable verbose USB communication messages (for debugging)]), 
-       [debug_usb_comms=$enableval], [])
+  AS_HELP_STRING([--enable-verbose-usb-comms],
+      [Enable verbose USB communication messages (for debugging)]),
+  [debug_usb_comms=$enableval], [])
 
 AC_MSG_CHECKING([whether to enable verbose JTAG I/O messages]);
 AC_MSG_RESULT($debug_jtag_io)
@@ -240,61 +353,77 @@ if test $debug_usb_comms = yes; then
 fi
 
 
-AC_ARG_ENABLE(parport,
-  AS_HELP_STRING([--enable-parport], [Enable building the pc parallel port driver]), 
-  [build_parport=$enableval], [build_parport=no])
+debug_malloc=no
+AC_ARG_ENABLE(malloc_logging,
+  AS_HELP_STRING([--enable-malloc-logging],
+      [Include free space in logging messages (requires malloc.h).]),
+  [debug_malloc=$enableval], [])
+
+AC_MSG_CHECKING([whether to enable malloc free space logging]);
+AC_MSG_RESULT($debug_malloc)
+if test $debug_malloc = yes; then
+  AC_DEFINE([_DEBUG_FREE_SPACE_],[1], [Include malloc free space in logging])
+fi
+
 
 AC_ARG_ENABLE(dummy,
-  AS_HELP_STRING([--enable-dummy], [Enable building the dummy port driver]), 
+  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=$enableval], [parport_use_ppdev=no])
-    ;;
-  *) 
-    parport_use_ppdev=yes
-    ;;
-esac
+
+AC_ARG_ENABLE(parport,
+  AS_HELP_STRING([--enable-parport], [Enable building the pc parallel port driver]),
+  [build_parport=$enableval], [build_parport=no])
+
+AC_ARG_ENABLE(parport_ppdev,
+  AS_HELP_STRING([--disable-parport-ppdev],
+      [Disable use of ppdev (/dev/parportN) for parport (for x86 only)]),
+    [parport_use_ppdev=$enableval], [parport_use_ppdev=yes])
+
+AC_ARG_ENABLE(parport_giveio,
+    AS_HELP_STRING([--enable-parport-giveio],
+      [Enable use of giveio for parport (for CygWin only)]),
+    [parport_use_giveio=$enableval], [parport_use_giveio=])
 
 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]), 
+  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]), 
+  AS_HELP_STRING([--enable-ft2232_ftd2xx], [Enable building support for FT2232 based devices using the FTD2XX driver from ftdichip.com]),
   [build_ft2232_ftd2xx=$enableval], [build_ft2232_ftd2xx=no])
+
 AC_ARG_ENABLE(amtjtagaccel,
-  AS_HELP_STRING([--enable-amtjtagaccel], [Enable building the Amontec JTAG-Accelerator driver]), 
+  AS_HELP_STRING([--enable-amtjtagaccel], [Enable building the Amontec JTAG-Accelerator driver]),
   [build_amtjtagaccel=$enableval], [build_amtjtagaccel=no])
 
 AC_ARG_ENABLE(ecosboard,
-  AS_HELP_STRING([--enable-ecosboard], [Enable building support for eCosBoard based JTAG debugger]), 
+  AS_HELP_STRING([--enable-ecosboard], [Enable building support for eCos based JTAG debugger]),
   [build_ecosboard=$enableval], [build_ecosboard=no])
 
+AC_ARG_ENABLE(zy1000,
+  AS_HELP_STRING([--enable-zy1000], [Enable ZY1000 interface]),
+  [build_zy1000=$enableval], [build_zy1000=no])
+
 AC_ARG_ENABLE(ioutil,
-  AS_HELP_STRING([--enable-ioutil], [Enable ioutil functions - useful for standalone OpenOCD implementations]), 
+  AS_HELP_STRING([--enable-ioutil], [Enable ioutil functions - useful for standalone OpenOCD implementations]),
   [build_ioutil=$enableval], [build_ioutil=no])
 
 AC_ARG_ENABLE(httpd,
-  AS_HELP_STRING([--enable-httpd], [Enable builtin httpd server - useful for standalone OpenOCD implementations]), 
+  AS_HELP_STRING([--enable-httpd], [Enable builtin httpd server - useful for standalone OpenOCD implementations]),
   [build_httpd=$enableval], [build_httpd=no])
 
-case "${host_cpu}" in 
+case "${host_cpu}" in
   arm*)
     AC_ARG_ENABLE(ep93xx,
-      AS_HELP_STRING([--enable-ep93xx], [Enable building support for EP93xx based SBCs]), 
+      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=$enableval], [build_at91rm9200=no])
     ;;
-    
-  *) 
+
+  *)
     build_ep93xx=no
     build_at91rm9200=no
     ;;
@@ -317,7 +446,8 @@ AC_ARG_ENABLE(usbprog,
   [build_usbprog=$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]),
+  AS_HELP_STRING([--enable-oocd_trace],
+  [Enable building support for some prototype OpenOCD+trace ETM capture hardware]),
   [build_oocd_trace=$enableval], [build_oocd_trace=no])
 
 AC_ARG_ENABLE(jlink,
@@ -336,48 +466,115 @@ 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 $host in 
-  *-cygwin*) 
+AC_ARG_ENABLE(minidriver_dummy,
+  AS_HELP_STRING([--enable-minidriver-dummy], [Enable the dummy minidriver.]),
+  [build_minidriver_dummy=$enableval], [build_minidriver_dummy=no])
+
+
+build_minidriver=no
+AC_MSG_CHECKING([whether to enable ZY1000 minidriver])
+if test $build_zy1000 = yes; then
+  if test $build_minidriver = yes; then
+    AC_MSG_ERROR([Multiple minidriver options have been enabled.])
+  fi
+  AC_DEFINE(HAVE_JTAG_MINIDRIVER_H, 1,
+      [Define to 1 if you have the <jtag_minidriver.h> header file.])
+  build_minidriver=yes
+fi
+AC_MSG_RESULT($build_zy1000)
+
+
+AC_MSG_CHECKING([whether to enable dummy minidriver])
+if test $build_minidriver_dummy = yes; then
+  if test $build_minidriver = yes; then
+    AC_MSG_ERROR([Multiple minidriver options have been enabled.])
+  fi
+  build_minidriver=yes
+  AC_DEFINE(BUILD_MINIDRIVER_DUMMY, 1, [Use the dummy minidriver.])
+  AC_DEFINE(HAVE_JTAG_MINIDRIVER_H, 1,
+      [Define to 1 if you have the <jtag_minidriver.h> header file.])
+fi
+AC_MSG_RESULT($build_minidriver_dummy)
+
+AC_MSG_CHECKING([whether standard drivers can be built])
+if test "$build_minidriver" = yes; then
+  AC_MSG_RESULT([no])
+  AC_MSG_WARN([Using the minidriver disables all other drivers.])
+  sleep 2
+else
+  AC_MSG_RESULT([yes])
+fi
+
+case "${host_cpu}" in
+  i?86|x86*)
+    ;;
+  *)
+    if test x$parport_use_ppdev = xno; then
+      AC_MSG_WARN([--disable-parport-ppdev is not supported by the host CPU])
+    fi
+    parport_use_ppdev=yes
+    ;;
+esac
+
+case $host in
+  *-cygwin*)
     is_win32=yes
+    parport_use_ppdev=no
+
+    AC_COMPILE_IFELSE(AC_LANG_PROGRAM([],[return __MINGW32__;]),
+      [is_mingw=yes],[is_mingw=no])
+    if test $is_mingw = yes; then
+      AC_DEFINE(IS_MINGW, 1, [1 if building for MinGW.])
+      if test x$parport_use_giveio = xno; then
+        AC_MSG_WARN([--disable-parport-giveio is not supported by MinGW32 hosts])
+      fi
+      parport_use_giveio=yes
+      is_cygwin=no
+    else
+      is_cygwin=yes
+      AC_DEFINE(IS_CYGWIN, 1, [1 if building for Cygwin.])
+      # sys/io.h needed under cygwin for parport access
+      if test $build_parport = yes; then
+        AC_CHECK_HEADERS(sys/io.h,[],AC_MSG_ERROR([Please install the cygwin ioperm package]))
+      fi
+    fi
 
-    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*) 
+    ;;
+  *-mingw*)
     is_mingw=yes
     is_win32=yes
+    parport_use_ppdev=no
 
+    if test x$parport_use_giveio = xno; then
+      AC_MSG_WARN([--disable-parport-giveio is not supported by MinGW32 hosts])
+    fi
     parport_use_giveio=yes
+    
+    CFLAGS="$CFLAGS -D__USE_MINGW_ANSI_STDIO"
 
     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
 
+    if test x$parport_use_giveio = xyes; then
+      AC_MSG_WARN([--enable-parport-giveio cannot be used by Darwin hosts])
+    fi
     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
+  *)
+    if test x$parport_use_giveio = xyes; then
+      AC_MSG_WARN([--enable-parport-giveio cannot be used by ]$host[ hosts])
+    fi
+    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.])
@@ -406,12 +603,17 @@ else
 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_zy1000 = yes; then
+  AC_DEFINE(BUILD_ZY1000, 1, [1 if you want ZY1000.])
+else
+  AC_DEFINE(BUILD_ZY1000, 0, [0 if you don't want ZY1000.])
+fi
+
 if test $build_ioutil = yes; then
   AC_DEFINE(BUILD_IOUTIL, 1, [1 if you want ioutils.])
 else
@@ -431,13 +633,13 @@ else
   AC_DEFINE(BUILD_AT91RM9200, 0, [0 if you don't want at91rm9200.])
 fi
 
-if test $parport_use_ppdev = yes; then
+if test x$parport_use_ppdev = xyes; 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 $parport_use_giveio = yes; then
+if test x$parport_use_giveio = xyes; 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.])
@@ -534,47 +736,47 @@ fi
 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.])
+  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: $f not found])
-       fi
-   else
+  AC_MSG_CHECKING([for ftd2xx.lib exists (win32)])
+
+  # if we are given a zipdir...
+  if test "${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_32)
+      LDFLAGS="$LDFLAGS -L$with_ftd2xx_win32_zipdir/i386"
       LIBS="$LIBS -lftd2xx"
-      AC_MSG_WARN([ASSUMPTION: The (win32) FTDICHIP.COM files: ftd2xx.h and ftd2xx.lib are in a proper place])
-   fi
-fi
+      f=$with_ftd2xx_win32_zipdir/i386/ftd2xx.lib
+      ;;
+    amd64|x86_64)
+      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 # win32
 
 if test $is_darwin = yes ; then
 if test "${with_ftd2xx_win32_zipdir+set}" = set
@@ -598,7 +800,7 @@ if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
    LIBS="$LIBS -lftd2xx"
    AC_MSG_RESULT([-L/usr/local/lib -lftd2xx])
 fi
-fi
+fi # darwin
 
 if test $is_win32 = no && test $is_darwin = no ; then
 
@@ -611,62 +813,62 @@ 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 ${FTD2XX_LIB}` -lpthread"
-              FTD2XX_LDFLAGS=""
-           fi
+  fi
+  # Are we given a TAR directory?
+  if test "${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: $with_ftd2xx_linux_tardir/static_lib sorry cannot handle this yet])
         fi
-       LDFLAGS="${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
+        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 # linux
 
 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])
+AC_MSG_CHECKING([whether ftd2xx library works])
 
 #
 # Save the LDFLAGS for later..
@@ -676,8 +878,8 @@ _LDFLAGS=`eval echo $LDFLAGS`
 _CFLAGS=`eval echo $CFLAGS`
 LDFLAGS=$_LDFLAGS
 CFLAGS=$_CFLAGS
-  AC_RUN_IFELSE(
-[
+
+AC_RUN_IFELSE([
 #include "confdefs.h"
 #if IS_WIN32
 #include "windows.h"
@@ -688,85 +890,131 @@ CFLAGS=$_CFLAGS
 int
 main( int argc, char **argv )
 {
-       DWORD x;
-       FT_GetLibraryVersion( &x );
-       return 0;
+  DWORD x;
+  FT_GetLibraryVersion( &x );
+  return 0;
 }
-], [ AC_MSG_RESULT([Success!])] , [ AC_MSG_ERROR([Cannot build & run test program using ftd2xx.lib]) ] )
+  ], [
+    AC_MSG_RESULT([Success!])
+  ], [
+    AC_MSG_ERROR([Cannot build & run test program using ftd2xx.lib])
+  ], [
+    AC_MSG_RESULT([Skipping as we are cross-compiling])
+  ])
+
+AC_MSG_CHECKING([for ftd2xx highspeed device support])
+AC_COMPILE_IFELSE([
+#include "confdefs.h"
+#if IS_WIN32
+#include "windows.h"
+#endif
+#include <stdio.h>
+#include <ftd2xx.h>
+DWORD x = FT_DEVICE_4232H;
+    ], [
+      AC_DEFINE(BUILD_FT2232_HIGHSPEED, [1],
+        [Support FT2232H/FT4232HS with FTD2XX or libftdi.])
+      build_ft2232_highspeed=yes
+    ], [
+      build_ft2232_highspeed=no
+    ])
+  AC_MSG_RESULT([$build_ft2232_highspeed])
+
+  if test $build_ft2232_highspeed = no; then
+    AC_MSG_WARN([You need a newer FTD2XX driver (version 2.04.16 or later).])
+  fi
+
 LDFLAGS=$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=$_CFLAGS
-
-   AC_RUN_IFELSE(
-[
+  # We assume: the package is preinstalled in the proper place
+  # these present as 2 libraries..
+  LIBS="$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;
+  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
+    ], [
+      AC_MSG_RESULT([Success])
+    ], [
+      AC_MSG_ERROR([Cannot build & run test program using libftdi])
+    ], [
+      AC_MSG_RESULT([Skipping as we are cross-compiling])
+    ])
+
+AC_MSG_CHECKING([for libftdi highspeed device support])
+AC_COMPILE_IFELSE([
+#include <stdio.h>
+#include <ftdi.h>
+enum ftdi_chip_type x = TYPE_2232H;
+    ], [
+      AC_DEFINE(BUILD_FT2232_HIGHSPEED, [1],
+        [Support FT2232H/FT4232HS with FTD2XX or libftdi.])
+      build_ft2232_highspeed=yes
+    ], [
+      build_ft2232_highspeed=no
+    ])
+    AC_MSG_RESULT([$build_ft2232_highspeed])
+
+    if test $build_ft2232_highspeed = no; then
+      AC_MSG_WARN([You need a newer libftdi version (0.16 or later).])
+    fi
+
+  # Restore the 'unexpanded ldflags'
+  LDFLAGS=$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 
+  $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)])])
+  [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 $parport_use_giveio = yes)
+AM_CONDITIONAL(GIVEIO, test x$parport_use_giveio = xyes)
 AM_CONDITIONAL(EP93XX, test $build_ep93xx = yes)
 AM_CONDITIONAL(ECOSBOARD, test $build_ecosboard = yes)
+AM_CONDITIONAL(ZY1000, test $build_zy1000 = 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(FT2232_DRIVER, test $build_ft2232_ftd2xx = yes -o $build_ft2232_libftdi = 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(PRESTO_DRIVER, test $build_presto_ftd2xx = yes -o $build_presto_libftdi = yes)
 AM_CONDITIONAL(USBPROG, test $build_usbprog = yes)
 AM_CONDITIONAL(OOCD_TRACE, test $build_oocd_trace = yes)
 AM_CONDITIONAL(JLINK, test $build_jlink = yes)
@@ -779,17 +1027,15 @@ 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
-AC_PROG_CC_C99
-AM_PROG_CC_C_O
-AC_PROG_RANLIB
+AM_CONDITIONAL(MINIDRIVER, test $build_minidriver = yes)
+AM_CONDITIONAL(MINIDRIVER_DUMMY, test $build_minidriver_dummy = yes)
 
-# Look for environ alternatives.  Possibility #1: is environ in unistd.h?
-AC_MSG_CHECKING([for environ in unistd.h])
+# Look for environ alternatives.  Possibility #1: is environ in unistd.h or stdlib.h?
+AC_MSG_CHECKING([for environ in unistd.h and stdlib.h])
 AC_COMPILE_IFELSE([
 #define _GNU_SOURCE
 #include <unistd.h>
+#include <stdlib.h>
 int main(int argc, char **argv) { char **ep = environ; }
   ], [
     AC_MSG_RESULT([yes])
@@ -812,35 +1058,36 @@ int main(int argc, char **argv) { char **ep = environ; }
   ])
 
 if test "${has_environ}" != "yes" ; then
-     AC_MSG_FAILURE([Could not find 'environ' in unistd.h or available libraries.]) 
+  AC_MSG_FAILURE([Could not find 'environ' in unistd.h or available libraries.])
 fi
 
+AC_DEFINE([_GNU_SOURCE],[1],[Use GNU C library extensions (e.g. stdndup).])
 
 # 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="${GCC_WARNINGS} -Wredundant-decls"
+  GCC_WARNINGS="${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="${GCC_WARNINGS} -Werror"
+  GCC_WARNINGS="${GCC_WARNINGS} -Werror"
 fi
 
 # overide default gcc cflags
 if test $gcc_warnings = yes; then
-       CFLAGS="$CFLAGS $GCC_WARNINGS"
+  CFLAGS="$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"
+  AC_CHECK_PROGS(CC_FOR_BUILD, gcc cc)
+  CFLAGS_FOR_BUILD="-g -O2 $GCC_WARNINGS"
 else
-       CC_FOR_BUILD=$CC
-       CFLAGS_FOR_BUILD=$CFLAGS
+  CC_FOR_BUILD=$CC
+  CFLAGS_FOR_BUILD=$CFLAGS
 fi
 
 AC_MSG_RESULT([$CC_FOR_BUILD])
@@ -849,29 +1096,41 @@ AC_SUBST(CFLAGS_FOR_BUILD)
 
 AC_MSG_CHECKING([for suffix of executable build tools])
 if test $cross_compiling = yes; then
-       cat >conftest.c <<\_______EOF
+  cat >conftest.c <<\_______EOF
 int main ()
 {
-       exit (0);
+  exit (0);
 }
 _______EOF
-for i in .exe ""; do
+  for i in .exe ""; do
     compile="$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 "${EXEEXT_FOR_BUILD+set}" != set; then
-               AC_MSG_ERROR([Cannot determine suffix of executable build tools])
-       fi
+      if (./conftest) 2>&AC_FD_CC; then
+        EXEEXT_FOR_BUILD=$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
+  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)
+AC_OUTPUT(dnl
+    Makefile dnl
+    src/Makefile dnl
+    src/helper/Makefile dnl
+    src/jtag/Makefile dnl
+    src/xsvf/Makefile dnl
+    src/svf/Makefile dnl
+    src/target/Makefile dnl
+    src/server/Makefile dnl
+    src/flash/Makefile dnl
+    src/pld/Makefile dnl
+    doc/Makefile dnl
+  )

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