Merge pull request #62 from riscv/riscv64

Merge mainline OpenOCD

1 files changed, 317 insertions, 835 deletions

diff --git a/configure.ac b/configure.ac
index fb5514e..c680bda 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.64)
-AC_INIT([openocd], [0.10.0-dev],
+AC_INIT([openocd], [0.10.0+dev],
   [OpenOCD Mailing List <openocd-devel@lists.sourceforge.net>])
 AC_CONFIG_SRCDIR([src/openocd.c])
 
@@ -7,10 +7,10 @@ m4_include([config_subdir.m4])dnl
 
 # check for makeinfo before calling AM_INIT_AUTOMAKE
 AC_CHECK_PROG([MAKEINFO], [makeinfo], [makeinfo])
-if test "x$MAKEINFO" = "x"; then
+AS_IF([test "x$MAKEINFO" = "x"], [
   MAKEINFO='echo makeinfo missing; true'
   AC_MSG_WARN([Info documentation will not be built.])
-fi
+])
 AC_SUBST([MAKEINFO])
 
 AM_INIT_AUTOMAKE([-Wall -Wno-portability dist-bzip2 dist-zip subdir-objects])
@@ -45,67 +45,11 @@ AC_SEARCH_LIBS([ioperm], [ioperm])
 AC_SEARCH_LIBS([dlopen], [dl])
 
 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([poll.h])
 AC_CHECK_HEADERS([pthread.h])
 AC_CHECK_HEADERS([strings.h])
@@ -113,10 +57,11 @@ AC_CHECK_HEADERS([sys/ioctl.h])
 AC_CHECK_HEADERS([sys/param.h])
 AC_CHECK_HEADERS([sys/select.h])
 AC_CHECK_HEADERS([sys/stat.h])
+AC_CHECK_HEADERS([sys/sysctl.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
+AC_CHECK_HEADERS([arpa/inet.h ifaddrs.h netinet/in.h netinet/tcp.h net/if.h], [], [], [dnl
 #include <stdio.h>
 #ifdef STDC_HEADERS
 # include <stdlib.h>
@@ -142,53 +87,17 @@ 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
+AC_CHECK_FUNCS([realpath])
 
 # guess-rev.sh only exists in the repository, not in the released archives
 AC_MSG_CHECKING([whether to build a release])
-if test -x $srcdir/guess-rev.sh ; then
+AS_IF([test -x "$srcdir/guess-rev.sh"], [
   build_release=no
-else
+], [
   build_release=yes
-fi
+])
 AC_MSG_RESULT([$build_release])
 
-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=${HOME}/libftd2xx0.4.16
-
-On Cygwin/MingW32, the new option is:
-
-  --with-ftd2xx-win32-zipdir=/path/to/files
-
-Where <path> is the path to the directory where the "zip" file from
-FTDICHIP.COM was unpacked, for example:
-
-  --with-ftd2xx-win32-zipdir=${HOME}/ftd2xx.cdm.files
-
-__EOF__
-
-   AC_MSG_ERROR([Sorry Cannot continue])
-  ], [true])
-
 # Adapter drivers
 # 1st column -- configure option
 # 2nd column -- description
@@ -201,7 +110,6 @@ m4_define([ADAPTER_OPT], [m4_translit(ADAPTER_ARG($1), [_], [-])])
 
 m4_define([USB1_ADAPTERS],
 	[[[ftdi], [MPSSE mode of FTDI based devices], [FTDI]],
-	[[jlink], [Segger J-Link JTAG Programmer], [JLINK]],
 	[[stlink], [ST-Link JTAG Programmer], [HLADAPTER_STLINK]],
 	[[ti_icdi], [TI ICDI JTAG Programmer], [HLADAPTER_ICDI]],
 	[[ulink], [Keil ULINK JTAG Programmer], [ULINK]],
@@ -221,63 +129,17 @@ m4_define([USB0_ADAPTERS],
 m4_define([HIDAPI_ADAPTERS],
 	[[[cmsis_dap], [CMSIS-DAP Compliant Debugger], [CMSIS_DAP]]])
 
-#========================================
-# 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
-  ], [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: $with_ftd2xx_linux_tardir])
-  fi
-  ], [true])
-
-AC_ARG_WITH(ftd2xx-lib,
-  AS_HELP_STRING([--with-ftd2xx-lib],
-    [Use static or shared ftd2xx libs (default=static)]),
-  [
-  case "$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
-  ])
+m4_define([HIDAPI_USB1_ADAPTERS],
+	[[[kitprog], [Cypress KitProg Programmer], [KITPROG]]])
+
+m4_define([LIBFTDI_ADAPTERS],
+	[[[usb_blaster], [Altera USB-Blaster Compatible], [USB_BLASTER]],
+	[[presto], [ASIX Presto Adapter], [PRESTO]],
+	[[openjtag], [OpenJTAG Adapter], [OPENJTAG]]])
+
+m4_define([LIBJAYLINK_ADAPTERS],
+	[[[jlink], [SEGGER J-Link Programmer], [JLINK]]])
+
 
 AC_ARG_ENABLE([doxygen-html],
   AS_HELP_STRING([--disable-doxygen-html],
@@ -338,21 +200,21 @@ AC_ARG_ENABLE([verbose_usb_comms],
 
 AC_MSG_CHECKING([whether to enable verbose JTAG I/O messages]);
 AC_MSG_RESULT([$debug_jtag_io])
-if test $debug_jtag_io = yes; then
+AS_IF([test "x$debug_jtag_io" = "xyes"], [
   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 $debug_usb_io = yes; then
+AS_IF([test "x$debug_usb_io" = "xyes"], [
   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 $debug_usb_comms = yes; then
+AS_IF([test "x$debug_usb_comms" = "xyes"], [
   AC_DEFINE([_DEBUG_USB_COMMS_],[1], [Print verbose USB communication messages])
-fi
+])
 
 debug_malloc=no
 AC_ARG_ENABLE([malloc_logging],
@@ -362,9 +224,9 @@ AC_ARG_ENABLE([malloc_logging],
 
 AC_MSG_CHECKING([whether to enable malloc free space logging]);
 AC_MSG_RESULT([$debug_malloc])
-if test $debug_malloc = yes; then
+AS_IF([test "x$debug_malloc" = "xyes"], [
   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]),
@@ -379,7 +241,15 @@ m4_define([AC_ARG_ADAPTERS], [
   ])
 ])
 
-AC_ARG_ADAPTERS([USB1_ADAPTERS, USB_ADAPTERS, USB0_ADAPTERS, HIDAPI_ADAPTERS], [auto])
+AC_ARG_ADAPTERS([
+  USB1_ADAPTERS,
+  USB_ADAPTERS,
+  USB0_ADAPTERS,
+  HIDAPI_ADAPTERS,
+  HIDAPI_USB1_ADAPTERS,
+  LIBFTDI_ADAPTERS,
+  LIBJAYLINK_ADAPTERS
+  ],[auto])
 
 AC_ARG_ENABLE([parport],
   AS_HELP_STRING([--enable-parport], [Enable building the pc parallel port driver]),
@@ -395,38 +265,10 @@ AC_ARG_ENABLE([parport_giveio],
       [Enable use of giveio for parport (for CygWin only)]),
     [parport_use_giveio=$enableval], [parport_use_giveio=])
 
-AC_ARG_ENABLE([ft2232_libftdi], [], [
-if test $enableval = yes; then
-  AC_MSG_ERROR([The ft2232 driver is deprecated, use --enable-ftdi to build its replacement, or force the old driver with --enable-legacy-ft2232_libftdi])
-fi
-])
-
-AC_ARG_ENABLE([ft2232_ftd2xx], [], [
-if test $enableval = yes; then
-  AC_MSG_ERROR([The ft2232 driver is deprecated, use --enable-ftdi to build its replacement, or force the old driver with --enable-legacy-ft2232_ftd2xx])
-fi
-])
-
-AC_ARG_ENABLE([legacy-ft2232_libftdi],
-  AS_HELP_STRING([--enable-legacy-ft2232_libftdi], [(DEPRECATED) Enable building support for FT2232 based devices using the libftdi library]),
-  [build_ft2232_libftdi=$enableval], [build_ft2232_libftdi=no])
-
-AC_ARG_ENABLE([legacy-ft2232_ftd2xx],
-  AS_HELP_STRING([--enable-legacy-ft2232_ftd2xx], [(DEPRECATED) Enable building support for FT2232 based devices using the D2XX library from ftdichip.com]),
-  [build_ft2232_ftd2xx=$enableval], [build_ft2232_ftd2xx=no])
-
 AC_ARG_ENABLE([jtag_vpi],
   AS_HELP_STRING([--enable-jtag_vpi], [Enable building support for JTAG VPI]),
   [build_jtag_vpi=$enableval], [build_jtag_vpi=no])
 
-AC_ARG_ENABLE([usb_blaster_libftdi],
-  AS_HELP_STRING([--enable-usb_blaster_libftdi], [Enable building support for the Altera USB-Blaster using the libftdi driver, opensource alternate of FTD2XX]),
-  [build_usb_blaster_libftdi=$enableval], [build_usb_blaster_libftdi=no])
-
-AC_ARG_ENABLE([usb_blaster_ftd2xx],
-  AS_HELP_STRING([--enable-usb_blaster_ftd2xx], [Enable building support for the Altera USB-Blaster using the FTD2XX driver from ftdichip.com]),
-  [build_usb_blaster_ftd2xx=$enableval], [build_usb_blaster_ftd2xx=no])
-
 AC_ARG_ENABLE([amtjtagaccel],
   AS_HELP_STRING([--enable-amtjtagaccel], [Enable building the Amontec JTAG-Accelerator driver]),
   [build_amtjtagaccel=$enableval], [build_amtjtagaccel=no])
@@ -443,8 +285,8 @@ AC_ARG_ENABLE([ioutil],
   AS_HELP_STRING([--enable-ioutil], [Enable ioutil functions - useful for standalone OpenOCD implementations]),
   [build_ioutil=$enableval], [build_ioutil=no])
 
-case "${host_cpu}" in
-  arm*)
+AS_CASE(["${host_cpu}"],
+  [arm*], [
     AC_ARG_ENABLE([ep93xx],
       AS_HELP_STRING([--enable-ep93xx], [Enable building support for EP93xx based SBCs]),
       [build_ep93xx=$enableval], [build_ep93xx=no])
@@ -456,35 +298,21 @@ case "${host_cpu}" in
     AC_ARG_ENABLE([bcm2835gpio],
       AS_HELP_STRING([--enable-bcm2835gpio], [Enable building support for bitbanging on BCM2835 (as found in Raspberry Pi)]),
       [build_bcm2835gpio=$enableval], [build_bcm2835gpio=no])
-    ;;
-
-  *)
+    AC_ARG_ENABLE([imx_gpio],
+      AS_HELP_STRING([--enable-imx_gpio], [Enable building support for bitbanging on NXP IMX processors]),
+      [build_imx_gpio=$enableval], [build_imx_gpio=no])
+  ],
+  [
     build_ep93xx=no
     build_at91rm9200=no
     build_bcm2835gpio=no
-    ;;
-esac
+    build_imx_gpio=no
+])
 
 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([openjtag_ftd2xx],
-  AS_HELP_STRING([--enable-openjtag_ftd2xx], [Enable building support for the OpenJTAG Programmer with ftd2xx driver]),
-  [build_openjtag_ftd2xx=$enableval], [build_openjtag_ftd2xx=no])
-
-AC_ARG_ENABLE([openjtag_ftdi],
-  AS_HELP_STRING([--enable-openjtag_ftdi], [Enable building support for the OpenJTAG Programmer with ftdi driver]),
-  [build_openjtag_ftdi=$enableval], [build_openjtag_ftdi=no])
-
 AC_ARG_ENABLE([oocd_trace],
   AS_HELP_STRING([--enable-oocd_trace],
   [Enable building support for some prototype OpenOCD+trace ETM capture hardware]),
@@ -498,6 +326,14 @@ AC_ARG_ENABLE([sysfsgpio],
   AS_HELP_STRING([--enable-sysfsgpio], [Enable building support for programming driven via sysfs gpios.]),
   [build_sysfsgpio=$enableval], [build_sysfsgpio=no])
 
+AS_CASE([$host_os],
+  [linux*], [],
+  [
+    AS_IF([test "x$build_sysfsgpio" = "xyes"], [
+      AC_MSG_ERROR([sysfsgpio is only available on linux])
+    ])
+])
+
 AC_ARG_ENABLE([minidriver_dummy],
   AS_HELP_STRING([--enable-minidriver-dummy], [Enable the dummy minidriver.]),
   [build_minidriver_dummy=$enableval], [build_minidriver_dummy=no])
@@ -511,16 +347,20 @@ AC_ARG_ENABLE([internal-libjaylink],
   [Disable building internal libjaylink]),
   [use_internal_libjaylink=$enableval], [use_internal_libjaylink=yes])
 
+AC_ARG_ENABLE([target64],
+  AS_HELP_STRING([--disable-target64], [Disable 64-bit target address]),
+    [build_target64=$enableval], [build_target64=yes])
+
 build_minidriver=no
 AC_MSG_CHECKING([whether to enable ZY1000 minidriver])
-if test $build_zy1000 = yes; then
-  if test $build_minidriver = yes; then
+AS_IF([test "x$build_zy1000" = "xyes"], [
+  AS_IF([test "x$build_minidriver" = "xyes"], [
     AC_MSG_ERROR([Multiple minidriver options have been enabled.])
-  fi
+  ])
   AC_DEFINE([HAVE_JTAG_MINIDRIVER_H], [1],
       [Define to 1 if you have the <jtag_minidriver.h> header file.])
   build_minidriver=yes
-fi
+])
 AC_MSG_RESULT([$build_zy1000])
 
 AC_ARG_ENABLE([remote-bitbang],
@@ -528,611 +368,235 @@ AC_ARG_ENABLE([remote-bitbang],
   [build_remote_bitbang=$enableval], [build_remote_bitbang=no])
 
 AC_MSG_CHECKING([whether to enable dummy minidriver])
-if test $build_minidriver_dummy = yes; then
-  if test $build_minidriver = yes; then
+AS_IF([test "x$build_minidriver_dummy" = "xyes"], [
+  AS_IF([test "x$build_minidriver" = "xyes"], [
     AC_MSG_ERROR([Multiple minidriver options have been enabled.])
-  fi
+  ])
   build_minidriver=yes
   AC_DEFINE([BUILD_MINIDRIVER_DUMMY], [1], [Use the dummy minidriver.])
   AC_DEFINE([HAVE_JTAG_MINIDRIVER_H], [1],
       [Define to 1 if you have the <jtag_minidriver.h> header file.])
-fi
+])
 AC_MSG_RESULT([$build_minidriver_dummy])
 
 AC_MSG_CHECKING([whether standard drivers can be built])
-if test "$build_minidriver" = yes; then
+AS_IF([test "x$build_minidriver" = "xyes"], [
   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
+AS_CASE(["${host_cpu}"],
+  [i?86|x86*], [],
+  [
+    AS_IF([test "x$parport_use_ppdev" = "xno"], [
       AC_MSG_WARN([--disable-parport-ppdev is not supported by the host CPU])
-    fi
+    ])
     parport_use_ppdev=yes
-    ;;
-esac
+])
 
-case $host in
-  *-cygwin*)
+AS_CASE([$host],
+  [*-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
+    AS_IF([test "x$is_mingw" = "xyes"], [
+      AS_IF([test "x$parport_use_giveio" = "xno"], [
         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 $build_parport = yes; then
+      AS_IF([test "x$build_parport" = "xyes"], [
         AC_CHECK_HEADERS([sys/io.h],[],AC_MSG_ERROR([Please install the cygwin ioperm package]))
-      fi
-    fi
-
-    AC_DEFINE([IS_WIN32], [1], [1 if building for Win32.])
-    AC_DEFINE([IS_DARWIN], [0], [0 if not building for Darwin.])
-    ;;
-  *-mingw* | *-msys*)
+      ])
+    ])
+  ],
+  [*-mingw* | *-msys*], [
     is_mingw=yes
     is_win32=yes
     parport_use_ppdev=no
 
-    if test x$parport_use_giveio = xno; then
+    AS_IF([test "x$parport_use_giveio" = "xno"], [
       AC_MSG_WARN([--disable-parport-giveio is not supported by MinGW32 hosts])
-    fi
+    ])
     parport_use_giveio=yes
 
-    if test x$build_buspirate = xyes; then
+    AS_IF([test "x$build_buspirate" = "xyes"], [
       AC_MSG_ERROR([buspirate currently not supported by MinGW32 hosts])
-    fi
-
-    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*)
+    AC_SUBST([HOST_CPPFLAGS], [-D__USE_MINGW_ANSI_STDIO])
+  ],
+  [*darwin*], [
     is_darwin=yes
 
-    if test x$parport_use_giveio = xyes; then
+    AS_IF([test "x$parport_use_giveio" = "xyes"], [
       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.])
-    ;;
-  *)
-    if test x$parport_use_giveio = xyes; then
+  ],
+  [
+    AS_IF([test "x$parport_use_giveio" = "xyes"], [
       AC_MSG_WARN([--enable-parport-giveio cannot be used by ]$host[ hosts])
-    fi
+    ])
     parport_use_giveio=no
+])
+
+AS_IF([test "x$is_cygwin" = "xyes"], [
+    AC_DEFINE([IS_CYGWIN], [1], [1 if building for Cygwin.])
+], [
     AC_DEFINE([IS_CYGWIN], [0], [0 if not building for Cygwin.])
+])
+
+AS_IF([test "x$is_mingw" = "xyes"], [
+    AC_DEFINE([IS_MINGW], [1], [1 if building for Mingw.])
+], [
+    AC_DEFINE([IS_MINGW], [0], [0 if not building for Mingw.])
+])
+
+AS_IF([test "x$is_win32" = "xyes"], [
+    AC_DEFINE([IS_WIN32], [1], [1 if building for Win32.])
+], [
     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 $is_win32 = yes; then
-    AC_DEFINE([WIN32_LEAN_AND_MEAN], [1], [1 to exclude old conflicting definitions when building on Windows])
-fi
+AS_IF([test "x$is_darwin" = "xyes"], [
+    AC_DEFINE([IS_DARWIN], [1], [1 if building for Darwin.])
+], [
+    AC_DEFINE([IS_DARWIN], [0], [0 if not building for Darwin.])
+])
 
-if test $build_parport = yes; then
+AS_IF([test "x$build_parport" = "xyes"], [
   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 $build_dummy = yes; then
+AS_IF([test "x$build_dummy" = "xyes"], [
   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 $build_ep93xx = yes; then
+AS_IF([test "x$build_ep93xx" = "xyes"], [
   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 $build_zy1000 = yes; then
+AS_IF([test "x$build_zy1000" = "xyes"], [
   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 $build_zy1000_master = yes; then
+AS_IF([test "x$build_zy1000_master" = "xyes"], [
   AC_DEFINE([BUILD_ZY1000_MASTER], [1], [1 if you want ZY1000 JTAG master registers.])
-else
+], [
   AC_DEFINE([BUILD_ZY1000_MASTER], [0], [0 if you don't want ZY1000 JTAG master registers.])
-fi
+])
 
-if test $build_at91rm9200 = yes; then
+AS_IF([test "x$build_at91rm9200" = "xyes"], [
   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 $build_bcm2835gpio = yes; then
+AS_IF([test "x$build_bcm2835gpio" = "xyes"], [
   build_bitbang=yes
   AC_DEFINE([BUILD_BCM2835GPIO], [1], [1 if you want bcm2835gpio.])
-else
+], [
   AC_DEFINE([BUILD_BCM2835GPIO], [0], [0 if you don't want bcm2835gpio.])
-fi
+])
+
+AS_IF([test "x$build_imx_gpio" = "xyes"], [
+  build_bitbang=yes
+  AC_DEFINE([BUILD_IMX_GPIO], [1], [1 if you want imx_gpio.])
+], [
+  AC_DEFINE([BUILD_IMX_GPIO], [0], [0 if you don't want imx_gpio.])
+])
 
-if test x$parport_use_ppdev = xyes; then
+AS_IF([test "x$parport_use_ppdev" = "xyes"], [
   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 x$parport_use_giveio = xyes; then
+AS_IF([test "x$parport_use_giveio" = "xyes"], [
   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_usb_blaster_libftdi = yes; then
-  AC_DEFINE([BUILD_USB_BLASTER_LIBFTDI], [1], [1 if you want libftdi usb_blaster.])
-else
-  AC_DEFINE([BUILD_USB_BLASTER_LIBFTDI], [0], [0 if you don't want libftdi usb_blaster.])
-fi
-
-if test $build_jtag_vpi = yes; then
+])
+
+AS_IF([test "x$build_jtag_vpi" = "xyes"], [
   AC_DEFINE([BUILD_JTAG_VPI], [1], [1 if you want JTAG VPI.])
-else
+], [
   AC_DEFINE([BUILD_JTAG_VPI], [0], [0 if you don't want JTAG VPI.])
-fi
-
-if test $build_usb_blaster_ftd2xx = yes; then
-  AC_DEFINE([BUILD_USB_BLASTER_FTD2XX], [1], [1 if you want ftd2xx usb_blaster.])
-else
-  AC_DEFINE([BUILD_USB_BLASTER_FTD2XX], [0], [0 if you don't want ftd2xx usb_blaster.])
-fi
+])
 
-if test $build_amtjtagaccel = yes; then
+AS_IF([test "x$build_amtjtagaccel" = "xyes"], [
   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 $build_gw16012 = yes; then
+AS_IF([test "x$build_gw16012" = "xyes"], [
   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
-
-AC_DEFINE([BUILD_OPENJTAG], [0], [0 if you don't want the OpenJTAG driver.])
-AC_DEFINE([BUILD_OPENJTAG_FTD2XX], [0], [0 if you don't want the OpenJTAG driver with FTD2XX driver.])
-AC_DEFINE([BUILD_OPENJTAG_LIBFTDI], [0], [0 if you don't want to build OpenJTAG driver with libftdi.])
-
-if test $build_openjtag_ftd2xx = yes; then
-  AC_DEFINE([BUILD_OPENJTAG], [1], [1 if you want the OpenJTAG driver.])
-  AC_DEFINE([BUILD_OPENJTAG_FTD2XX], [1], [1 if you want the OpenJTAG driver with FTD2XX driver.])
-fi
-if test $build_openjtag_ftdi = yes; then
-  AC_DEFINE([BUILD_OPENJTAG], [1], [1 if you want the OpenJTAG drvier.])
-  AC_DEFINE([BUILD_OPENJTAG_LIBFTDI], [1], [1 if you want to build OpenJTAG with FTDI driver.])
-fi
-
-if test $build_oocd_trace = yes; then
+AS_IF([test "x$build_oocd_trace" = "xyes"], [
   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 $build_buspirate = yes; then
+AS_IF([test "x$build_buspirate" = "xyes"], [
   AC_DEFINE([BUILD_BUSPIRATE], [1], [1 if you want the Buspirate JTAG driver.])
-else
+], [
   AC_DEFINE([BUILD_BUSPIRATE], [0], [0 if you don't want the Buspirate JTAG driver.])
-fi
+])
 
-if test $use_internal_jimtcl = yes; then
-  if test -f "$srcdir/jimtcl/configure.ac"; then
-    AX_CONFIG_SUBDIR_OPTION([jimtcl], [--disable-install-jim])
-  else
+AS_IF([test "x$use_internal_jimtcl" = "xyes"], [
+  AS_IF([test -f "$srcdir/jimtcl/configure.ac"], [
+    AX_CONFIG_SUBDIR_OPTION([jimtcl], [--disable-install-jim --with-ext="eventloop array clock regexp stdlib tclcompat" --without-ext="default"])
+  ], [
     AC_MSG_ERROR([jimtcl not found, run git submodule init and git submodule update.])
-  fi
-fi
+  ])
+])
 
-if test $use_internal_libjaylink = yes; then
-  if test -f "$srcdir/src/jtag/drivers/libjaylink/configure.ac"; then
-    ( cd $srcdir/src/jtag/drivers/libjaylink/ && ./autogen.sh )
-    AX_CONFIG_SUBDIR_OPTION([src/jtag/drivers/libjaylink],
-		[--enable-subproject-build])
-  else
-    AC_MSG_ERROR([Internal libjaylink not found, run either 'git submodule init' and 'git submodule update' or disable internal libjaylink with --disable-internal-libjaylink.])
-  fi
-else
-  PKG_CHECK_MODULES([libjaylink], [libjaylink >= 0.1],
-	[CFLAGS="$CFLAGS $libjaylink_CFLAGS"; LIBS="$LIBS $libjaylink_LIBS"; HAVE_LIBJAYLINK=yes], [HAVE_LIBJAYLINK=no])
-fi
-
-if test $build_remote_bitbang = yes; then
+AS_IF([test "x$build_remote_bitbang" = "xyes"], [
   build_bitbang=yes
   AC_DEFINE([BUILD_REMOTE_BITBANG], [1], [1 if you want the Remote Bitbang JTAG driver.])
-else
+], [
   AC_DEFINE([BUILD_REMOTE_BITBANG], [0], [0 if you don't want the Remote Bitbang JTAG driver.])
-fi
+])
 
-if test $build_sysfsgpio = yes; then
+AS_IF([test "x$build_sysfsgpio" = "xyes"], [
   build_bitbang=yes
   AC_DEFINE([BUILD_SYSFSGPIO], [1], [1 if you want the SysfsGPIO driver.])
-else
+], [
   AC_DEFINE([BUILD_SYSFSGPIO], [0], [0 if you don't want SysfsGPIO 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 -o $build_usb_blaster_ftd2xx = yes -o $build_openjtag_ftd2xx = yes; then
-  AC_MSG_CHECKING([for ftd2xx.lib exists (win32)])
-
-  # if we are given a zipdir...
-  if test "${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_32)
-      LDFLAGS="$LDFLAGS -L$with_ftd2xx_win32_zipdir/i386"
-      LIBS="$LIBS -lftd2xx"
-      f=$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
-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 -o $build_usb_blaster_ftd2xx = yes ; then
-   AC_MSG_CHECKING([for libftd2xx.a (darwin)])
-
-   if test ! -f /usr/local/include/ftd2xx.h ; then
-      AC_MSG_ERROR([ftd2xx library from FTDICHIP.com seems to be missing, cannot find: /usr/local/include/ftd2xx.h])
-   fi
-
-   CFLAGS="$CFLAGS -I/usr/local/include"
-   LDFLAGS="$LDFLAGS -L/usr/local/lib"
-   LIBS="$LIBS -lftd2xx"
-   AC_MSG_RESULT([-L/usr/local/lib -lftd2xx])
-fi
-fi # darwin
-
-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 -o $build_usb_blaster_ftd2xx = yes -o $build_openjtag_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"
-    if test $with_ftd2xx_lib = shared; then
-       FTD2XX_LDFLAGS="-L$with_ftd2xx_linux_tardir"
-       FTD2XX_LIB="-lftd2xx"
-    else
-      # Test #1 - v1.0.x
-      case "$host_cpu" in
-      i?86|x86_32)
-              dir=build/i386;;
-      amd64|x86_64)
-              dir=build/x86_64;;
-      *)
-              dir=none;;
-      esac
-      if test -f "$with_ftd2xx_linux_tardir/$dir/libftd2xx.a"; then
-          FTD2XX_LDFLAGS="-L$with_ftd2xx_linux_tardir/$dir"
-          # Also needs -lrt
-          FTD2XX_LIB="-lftd2xx -lrt"
-      else
-        # Test Number2.
-        # Grr.. perhaps it exists as a version number?
-        FTD2XX_LIB="$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} ${FTD2XX_LDFLAGS}"
-    LIBS="${FTD2XX_LIB} ${LIBS}"
-    AC_MSG_RESULT([${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.])
-      ],[-lrt -lusb-1.0])
-  fi
-fi
-fi # linux
-
-if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes -o $build_usb_blaster_ftd2xx = yes ; then
-
-# Before we go any further - make sure we can *BUILD* and *RUN*
-# a simple app with the "ftd2xx.lib" file - in what ever form we where given
-# We should be able to compile, link and run this test program now
-AC_MSG_CHECKING([whether ftd2xx library works])
-
-#
-# Save the LDFLAGS for later..
-LDFLAGS_SAVE=$LDFLAGS
-CFLAGS_SAVE=$CFLAGS
-_LDFLAGS=`eval echo $LDFLAGS`
-_CFLAGS=`eval echo $CFLAGS`
-LDFLAGS=$_LDFLAGS
-CFLAGS=$_CFLAGS
-
-AC_RUN_IFELSE([AC_LANG_PROGRAM([[
-#include "confdefs.h"
-#if IS_WIN32
-#include "windows.h"
-#endif
-#include <stdio.h>
-#include <ftd2xx.h>
-  ]], [[
-  DWORD x;
-  FT_GetLibraryVersion( &x );
-  ]])], [
-    AC_MSG_RESULT([Success!])
-  ], [
-    AC_MSG_ERROR([Cannot build & run test program using ftd2xx.lib])
-  ], [
-    AC_MSG_RESULT([Skipping as we are cross-compiling])
-  ])
-
-AC_MSG_CHECKING([for ftd2xx highspeed device support])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include "confdefs.h"
-#if IS_WIN32
-#include "windows.h"
-#endif
-#include <stdio.h>
-#include <ftd2xx.h>
-
-DWORD x = FT_DEVICE_4232H;
-    ]], [])], [
-      AC_DEFINE([BUILD_FT2232_HIGHSPEED], [1],
-        [Support FT2232H/FT4232HS with FTD2XX or libftdi.])
-      build_ft2232_highspeed=yes
-    ], [
-      build_ft2232_highspeed=no
-    ])
-  AC_MSG_RESULT([$build_ft2232_highspeed])
-
-  if test $build_ft2232_highspeed = no; then
-    AC_MSG_WARN([You need a newer FTD2XX driver (version 2.04.16 or later).])
-  fi
-
-AC_MSG_CHECKING([for ftd2xx FT232H device support])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include "confdefs.h"
-#if IS_WIN32
-#include "windows.h"
-#endif
-#include <stdio.h>
-#include <ftd2xx.h>
-
-DWORD x = FT_DEVICE_232H;
-    ]], [])], [
-      AC_DEFINE([HAS_ENUM_FT232H], [1],
-        [Support FT232H with FTD2XX or libftdi.])
-      has_enum_ft232h=yes
-    ], [
-      has_enum_ft232h=no
-    ])
-  AC_MSG_RESULT([$has_enum_ft232h])
-
-  if test $has_enum_ft232h = no; then
-    AC_MSG_WARN([You need a newer FTD2XX driver (version 2.08.12 or later).])
-  fi
-
-LDFLAGS=$LDFLAGS_SAVE
-CFLAGS=$CFLAGS_SAVE
-fi
-
-if test $build_ft2232_libftdi = yes -o $build_usb_blaster_libftdi = yes -o \
-  $build_openjtag_ftdi = yes -o $build_presto_libftdi = yes; then
-
-  # we can have libftdi or libftdi1, so check it and use the latest one
-  PKG_CHECK_MODULES([LIBFTDI], [libftdi1], [use_libftdi=yes], [use_libftdi=no])
-  if test $use_libftdi = no; then
-	PKG_CHECK_MODULES([LIBFTDI], [libftdi], [use_libftdi=yes], [use_libftdi=no])
-  fi
-  if test $use_libftdi = no; then
-	AC_MSG_ERROR([The libftdi driver is not present on your system.])
-  fi
-
-  #
-  # Try to build a small program.
-  AC_MSG_CHECKING([Build & Link with libftdi...])
-
-  LDFLAGS_SAVE=$LDFLAGS
-  CFLAGS_SAVE=$CFLAGS
-  LIBS_SAVE=$LIBS
-  _LDFLAGS=`eval echo $LDFLAGS`
-  _CFLAGS=`eval echo $CFLAGS`
-  _LIBS=`eval echo $LIBS`
-  LDFLAGS=$_LDFLAGS
-  CFLAGS="$_CFLAGS $LIBFTDI_CFLAGS"
-  LIBS="$_LIBS $LIBFTDI_LIBS"
-
-  AC_RUN_IFELSE([AC_LANG_PROGRAM([[
-#include <stdio.h>
-#include <ftdi.h>
-  ]], [[
-  struct ftdi_context *p;
-  p = ftdi_new();
-  if( p != NULL ){
-      return 0;
-  } else {
-      fprintf( stderr, "calling ftdi_new() failed\n");
-      return 1;
-        }
-    ]])], [
-      AC_MSG_RESULT([Success])
-    ], [
-      AC_MSG_ERROR([Cannot build & run test program using libftdi])
-    ], [
-      AC_MSG_RESULT([Skipping as we are cross-compiling, trying build only])
-      AC_SEARCH_LIBS([ftdi_new], [], [], [AC_MSG_ERROR([Cannot link with libftdi])])
-    ])
-
-AC_MSG_CHECKING([for libftdi highspeed device support])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <stdio.h>
-#include <ftdi.h>
-  ]], [[
-enum ftdi_chip_type x = TYPE_2232H;
-    ]])], [
-      AC_DEFINE([BUILD_FT2232_HIGHSPEED], [1],
-        [Support FT2232H/FT4232HS with FTD2XX or libftdi.])
-      build_ft2232_highspeed=yes
-    ], [
-      build_ft2232_highspeed=no
-    ])
-    AC_MSG_RESULT([$build_ft2232_highspeed])
-
-    if test $build_ft2232_highspeed = no; then
-      AC_MSG_WARN([You need a newer libftdi version (0.16 or later).])
-    fi
-
-AC_MSG_CHECKING([for libftdi FT232H device support])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <stdio.h>
-#include <ftdi.h>
-  ]], [[
-enum ftdi_chip_type x = TYPE_232H;
-    ]])], [
-      AC_DEFINE([HAS_ENUM_FT232H], [1],
-        [Support FT232H with FTD2XX or libftdi.])
-      has_enum_ft232h=yes
-    ], [
-      has_enum_ft232h=no
-    ])
-    AC_MSG_RESULT([$has_enum_ft232h])
+])
 
-    if test $has_enum_ft232h = no; then
-      AC_MSG_WARN([You need a newer libftdi version (0.20 or later).])
-    fi
+AS_IF([test "x$build_target64" = "xyes"], [
+  AC_DEFINE([BUILD_TARGET64], [1], [1 if you want 64-bit addresses.])
+], [
+  AC_DEFINE([BUILD_TARGET64], [0], [0 if you don't want 64-bit addresses.])
+])
 
-  # Restore the 'unexpanded ldflags'
-  LDFLAGS=$LDFLAGS_SAVE
-  CFLAGS=$CFLAGS_SAVE
-  LIBS=$LIBS_SAVE
-fi
 
 PKG_CHECK_MODULES([LIBUSB1], [libusb-1.0], [
 	use_libusb1=yes
@@ -1160,84 +624,106 @@ for hidapi_lib in hidapi hidapi-hidraw hidapi-libusb; do
 	])
 done
 
+PKG_CHECK_MODULES([LIBFTDI], [libftdi1], [use_libftdi=yes], [
+	PKG_CHECK_MODULES([LIBFTDI], [libftdi], [use_libftdi=yes], [use_libftdi=no])
+])
+
+PKG_CHECK_MODULES([LIBJAYLINK], [libjaylink >= 0.1],
+	[use_libjaylink=yes], [use_libjaylink=no])
+
 m4_define([PROCESS_ADAPTERS], [
   m4_foreach([adapter], [$1], [
-	if test $2; then
-		if test $ADAPTER_VAR([adapter]) != no; then
+	AS_IF([test $2], [
+		AS_IF([test "x$ADAPTER_VAR([adapter])" != "xno"], [
 			AC_DEFINE([BUILD_]ADAPTER_SYM([adapter]), [1], [1 if you want the ]ADAPTER_DESC([adapter]).)
-		else
+		], [
 			AC_DEFINE([BUILD_]ADAPTER_SYM([adapter]), [0], [0 if you do not want the ]ADAPTER_DESC([adapter]).)
-		fi
-	else
-		if test $ADAPTER_VAR([adapter]) = yes; then
+		])
+	], [
+		AS_IF([test "x$ADAPTER_VAR([adapter])" = "xyes"], [
 			AC_MSG_ERROR([$3 is required for the ADAPTER_DESC([adapter])])
-		fi
+		])
 		ADAPTER_VAR([adapter])=no
-	fi
-	AM_CONDITIONAL(ADAPTER_SYM([adapter]), [test $ADAPTER_VAR([adapter]) != no])
+	])
+	AM_CONDITIONAL(ADAPTER_SYM([adapter]), [test "x$ADAPTER_VAR([adapter])" != "xno"])
   ])
 ])
 
-PROCESS_ADAPTERS([USB1_ADAPTERS], [$use_libusb1 = yes], [libusb-1.x])
-PROCESS_ADAPTERS([USB_ADAPTERS], [$use_libusb1 = yes -o $use_libusb0 = yes], [libusb-1.x or libusb-0.1])
-PROCESS_ADAPTERS([USB0_ADAPTERS], [$use_libusb0 = yes], [libusb-0.1])
-PROCESS_ADAPTERS([HIDAPI_ADAPTERS], [$use_hidapi = yes], [hidapi])
+PROCESS_ADAPTERS([USB1_ADAPTERS], ["x$use_libusb1" = "xyes"], [libusb-1.x])
+PROCESS_ADAPTERS([USB_ADAPTERS], ["x$use_libusb1" = "xyes" -o "x$use_libusb0" = "xyes"], [libusb-1.x or libusb-0.1])
+PROCESS_ADAPTERS([USB0_ADAPTERS], ["x$use_libusb0" = "xyes"], [libusb-0.1])
+PROCESS_ADAPTERS([HIDAPI_ADAPTERS], ["x$use_hidapi" = "xyes"], [hidapi])
+PROCESS_ADAPTERS([HIDAPI_USB1_ADAPTERS], ["x$use_hidapi" = "xyes" -a "x$use_libusb1" = "xyes"], [hidapi and libusb-1.x])
+PROCESS_ADAPTERS([LIBFTDI_ADAPTERS], ["x$use_libftdi" = "xyes"], [libftdi])
+PROCESS_ADAPTERS([LIBJAYLINK_ADAPTERS], ["x$use_libusb1" = "xyes" -a "x$use_internal_libjaylink" = "xyes" -o "x$use_libjaylink" = "xyes"], [libusb-1.x or libjaylink-0.1])
+
+AS_IF([test "x$build_openjtag" = "xyes"], [
+  AS_IF([test "x$use_libusb1" != "xyes" -a "x$use_libusb0" != "xyes"], [
+    AC_MSG_ERROR([libusb-1.x or libusb-0.1 is required for the OpenJTAG Programmer])
+    build_openjtag=no
+  ])
+])
 
-if test $enable_stlink != no -o $enable_ti_icdi != no; then
+AS_IF([test "x$enable_stlink" != "xno" -o "x$enable_ti_icdi" != "xno"], [
 	AC_DEFINE([BUILD_HLADAPTER], [1], [1 if you want the High Level JTAG driver.])
-else
+], [
 	AC_DEFINE([BUILD_HLADAPTER], [0], [0 if you want the High Level JTAG driver.])
-fi
-AM_CONDITIONAL([HLADAPTER], [test $enable_stlink != no -o $enable_ti_icdi != no])
-
-# Disable J-Link driver if internal libjaylink is disabled and libjaylink was
-# not found by pkg-config.
-if test $enable_jlink != no; then
-  if test $use_internal_libjaylink$HAVE_LIBJAYLINK = nono; then
-      enable_jlink=no
-  fi
-fi
-
-AM_CONDITIONAL([RELEASE], [test $build_release = yes])
-AM_CONDITIONAL([PARPORT], [test $build_parport = yes])
-AM_CONDITIONAL([DUMMY], [test $build_dummy = yes])
-AM_CONDITIONAL([GIVEIO], [test x$parport_use_giveio = xyes])
-AM_CONDITIONAL([EP93XX], [test $build_ep93xx = yes])
-AM_CONDITIONAL([ZY1000], [test $build_zy1000 = yes])
-AM_CONDITIONAL([ZY1000_MASTER], [test $build_zy1000_master = yes])
-AM_CONDITIONAL([IOUTIL], [test $build_ioutil = yes])
-AM_CONDITIONAL([AT91RM9200], [test $build_at91rm9200 = yes])
-AM_CONDITIONAL([BCM2835GPIO], [test $build_bcm2835gpio = yes])
-AM_CONDITIONAL([BITBANG], [test $build_bitbang = yes])
-AM_CONDITIONAL([FT2232_LIBFTDI], [test $build_ft2232_libftdi = yes])
-AM_CONDITIONAL([FT2232_DRIVER], [test $build_ft2232_ftd2xx = yes -o $build_ft2232_libftdi = yes])
-AM_CONDITIONAL([USB_BLASTER_LIBFTDI], [test $build_usb_blaster_libftdi = yes])
-AM_CONDITIONAL([USB_BLASTER_FTD2XX], [test $build_usb_blaster_ftd2xx = yes])
-AM_CONDITIONAL([JTAG_VPI], [test $build_jtag_vpi = yes -o $build_jtag_vpi = yes])
-AM_CONDITIONAL([USB_BLASTER_DRIVER], [test $build_usb_blaster_ftd2xx = yes -o $build_usb_blaster_libftdi = yes -o $enable_usb_blaster_2 != no])
-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_DRIVER], [test $build_presto_ftd2xx = yes -o $build_presto_libftdi = yes])
-AM_CONDITIONAL([OPENJTAG], [test $build_openjtag_ftd2xx = yes -o $build_openjtag_ftdi = yes])
-AM_CONDITIONAL([OOCD_TRACE], [test $build_oocd_trace = yes])
-AM_CONDITIONAL([REMOTE_BITBANG], [test $build_remote_bitbang = yes])
-AM_CONDITIONAL([BUSPIRATE], [test $build_buspirate = yes])
-AM_CONDITIONAL([SYSFSGPIO], [test $build_sysfsgpio = yes])
-AM_CONDITIONAL([USE_LIBUSB0], [test $use_libusb0 = yes])
-AM_CONDITIONAL([USE_LIBUSB1], [test $use_libusb1 = 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])
-AM_CONDITIONAL([CMSIS_DAP], [test $use_hidapi = yes])
-
-AM_CONDITIONAL([MINIDRIVER], [test $build_minidriver = yes])
-AM_CONDITIONAL([MINIDRIVER_DUMMY], [test $build_minidriver_dummy = yes])
-
-AM_CONDITIONAL([INTERNAL_JIMTCL], [test $use_internal_jimtcl = yes])
-AM_CONDITIONAL([INTERNAL_LIBJAYLINK], [test $use_internal_libjaylink = yes])
+])
+AM_CONDITIONAL([HLADAPTER], [test "x$enable_stlink" != "xno" -o "x$enable_ti_icdi" != "xno"])
+
+AS_IF([test "x$enable_jlink" != "xno"], [
+  AS_IF([test "x$use_internal_libjaylink" = "xyes"], [
+    AS_IF([test -f "$srcdir/src/jtag/drivers/libjaylink/configure.ac"], [
+      AX_CONFIG_SUBDIR_OPTION([src/jtag/drivers/libjaylink],
+		[--enable-subproject-build])
+    ], [
+      AC_MSG_ERROR([Internal libjaylink not found, run either 'git submodule init' and 'git submodule update' or disable internal libjaylink with --disable-internal-libjaylink.])
+    ])
+  ])
+])
+
+# Presto needs the bitq module
+AS_IF([test "x$enable_presto" != "xno"], [
+  build_bitq=yes
+])
+
+AM_CONDITIONAL([RELEASE], [test "x$build_release" = "xyes"])
+AM_CONDITIONAL([PARPORT], [test "x$build_parport" = "xyes"])
+AM_CONDITIONAL([DUMMY], [test "x$build_dummy" = "xyes"])
+AM_CONDITIONAL([GIVEIO], [test "x$parport_use_giveio" = "xyes"])
+AM_CONDITIONAL([EP93XX], [test "x$build_ep93xx" = "xyes"])
+AM_CONDITIONAL([ZY1000], [test "x$build_zy1000" = "xyes"])
+AM_CONDITIONAL([ZY1000_MASTER], [test "x$build_zy1000_master" = "xyes"])
+AM_CONDITIONAL([IOUTIL], [test "x$build_ioutil" = "xyes"])
+AM_CONDITIONAL([AT91RM9200], [test "x$build_at91rm9200" = "xyes"])
+AM_CONDITIONAL([BCM2835GPIO], [test "x$build_bcm2835gpio" = "xyes"])
+AM_CONDITIONAL([IMX_GPIO], [test "x$build_imx_gpio" = "xyes"])
+AM_CONDITIONAL([BITBANG], [test "x$build_bitbang" = "xyes"])
+AM_CONDITIONAL([JTAG_VPI], [test "x$build_jtag_vpi" = "xyes" -o "x$build_jtag_vpi" = "xyes"])
+AM_CONDITIONAL([USB_BLASTER_DRIVER], [test "x$enable_usb_blaster" != "xno" -o "x$enable_usb_blaster_2" != "xno"])
+AM_CONDITIONAL([AMTJTAGACCEL], [test "x$build_amtjtagaccel" = "xyes"])
+AM_CONDITIONAL([GW16012], [test "x$build_gw16012" = "xyes"])
+AM_CONDITIONAL([OOCD_TRACE], [test "x$build_oocd_trace" = "xyes"])
+AM_CONDITIONAL([REMOTE_BITBANG], [test "x$build_remote_bitbang" = "xyes"])
+AM_CONDITIONAL([BUSPIRATE], [test "x$build_buspirate" = "xyes"])
+AM_CONDITIONAL([SYSFSGPIO], [test "x$build_sysfsgpio" = "xyes"])
+AM_CONDITIONAL([USE_LIBUSB0], [test "x$use_libusb0" = "xyes"])
+AM_CONDITIONAL([USE_LIBUSB1], [test "x$use_libusb1" = "xyes"])
+AM_CONDITIONAL([IS_CYGWIN], [test "x$is_cygwin" = "xyes"])
+AM_CONDITIONAL([IS_MINGW], [test "x$is_mingw" = "xyes"])
+AM_CONDITIONAL([IS_WIN32], [test "x$is_win32" = "xyes"])
+AM_CONDITIONAL([IS_DARWIN], [test "x$is_darwin" = "xyes"])
+AM_CONDITIONAL([BITQ], [test "x$build_bitq" = "xyes"])
+AM_CONDITIONAL([USE_LIBFTDI], [test "x$use_libftdi" = "xyes"])
+AM_CONDITIONAL([USE_HIDAPI], [test "x$use_hidapi" = "xyes"])
+AM_CONDITIONAL([USE_LIBJAYLINK], [test "x$use_libjaylink" = "xyes"])
+AM_CONDITIONAL([TARGET64], [test "x$build_target64" = "xyes"])
+
+AM_CONDITIONAL([MINIDRIVER], [test "x$build_minidriver" = "xyes"])
+AM_CONDITIONAL([MINIDRIVER_DUMMY], [test "x$build_minidriver_dummy" = "xyes"])
+
+AM_CONDITIONAL([INTERNAL_JIMTCL], [test "x$use_internal_jimtcl" = "xyes"])
+AM_CONDITIONAL([INTERNAL_LIBJAYLINK], [test "x$use_internal_libjaylink" = "xyes"])
 
 # 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])
@@ -1266,50 +752,31 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
     AC_MSG_RESULT([${has_environ}])
   ])
 
-if test "${has_environ}" != "yes" ; then
+AS_IF([test "x${has_environ}" != "xyes" ], [
   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 -Wshadow"
-if test "${gcc_wextra}" = yes; then
+AS_IF([test "x${gcc_wextra}" = "xyes"], [
   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 "${gcc_werror}" = yes; then
+])
+AS_IF([test "x${gcc_werror}" = "xyes"], [
   GCC_WARNINGS="${GCC_WARNINGS} -Werror"
-fi
+])
 
 # overide default gcc cflags
-if test $gcc_warnings = yes; then
-  CFLAGS="$CFLAGS $GCC_WARNINGS"
-fi
+AS_IF([test "x$gcc_warnings" = "xyes"], [
+  AC_SUBST([GCC_WARNINGS], [$GCC_WARNINGS])
+])
 
 AC_CONFIG_FILES([
   Makefile
-  src/Makefile
-  src/helper/Makefile
-  src/jtag/Makefile
-  src/jtag/drivers/Makefile
-  src/jtag/drivers/usb_blaster/Makefile
-  src/jtag/hla/Makefile
-  src/jtag/aice/Makefile
-  src/transport/Makefile
-  src/target/openrisc/Makefile
-  src/xsvf/Makefile
-  src/svf/Makefile
-  src/target/Makefile
-  src/rtos/Makefile
-  src/server/Makefile
-  src/flash/Makefile
-  src/flash/nor/Makefile
-  src/flash/nand/Makefile
-  src/pld/Makefile
-  doc/Makefile
 ])
 AC_OUTPUT
 
@@ -1317,27 +784,42 @@ echo
 echo
 echo OpenOCD configuration summary
 echo --------------------------------------------------
-m4_foreach([adapter], [USB1_ADAPTERS, USB_ADAPTERS, USB0_ADAPTERS, HIDAPI_ADAPTERS],
+m4_foreach([adapter], [USB1_ADAPTERS, USB_ADAPTERS, USB0_ADAPTERS,
+	HIDAPI_ADAPTERS, HIDAPI_USB1_ADAPTERS, LIBFTDI_ADAPTERS,
+	LIBJAYLINK_ADAPTERS],
 	[s=m4_format(["%-40s"], ADAPTER_DESC([adapter]))
-	case $ADAPTER_VAR([adapter]) in
-		auto)
+	AS_CASE([$ADAPTER_VAR([adapter])],
+		[auto], [
 			echo "$s"yes '(auto)'
-			;;
-		yes)
+		],
+		[yes], [
 			echo "$s"yes
-			;;
-		no)
+		],
+		[no], [
 			echo "$s"no
-			;;
-	esac
+	])
 ])
 echo
 
-if test $build_ft2232_libftdi = yes -o $build_ft2232_ftd2xx = yes; then
-	if test $enable_ftdi = no; then
-		AC_MSG_WARN([Building the deprecated 'ft2232' adapter driver but not its replacement!])
-		AC_MSG_WARN([Please consider using --enable-ftdi instead.])
-	else
-		AC_MSG_WARN([Building the deprecated 'ft2232' adapter driver.])
-	fi
-fi
+AS_IF([test "x$build_oocd_trace" = "xyes"], [
+  echo 'WARNING! Deprecated configure option (--enable-oocd_trace)'
+  echo 'The oocd_trace driver is deprecated and will be removed in the next release.'
+  echo 'If you regularly use this driver, please report to the OpenOCD Mailing List.'
+  echo
+])
+
+AS_IF([test "x$build_zy1000" = "xyes" -o "x$build_zy1000_master" = "xyes"], [
+  echo 'WARNING! Deprecated configure option (--enable-zy1000, --enable-zy1000-master)'
+  echo 'Support for the ZY1000 platform is deprecated and will be removed in the next'
+  echo 'release. If you regularly use this platform, please report to the OpenOCD'
+  echo 'Mailing List.'
+  echo
+])
+
+AS_IF([test "x$build_ioutil" = "xyes"], [
+  echo 'WARNING! Deprecated configure option (--enable-ioutil)'
+  echo 'Support for the ioutil functions is deprecated and will be removed in the next'
+  echo 'release. If you regularly depend on this functionality, please report to the'
+  echo 'OpenOCD Mailing List.'
+  echo
+])