configure.in

   1 AC_PREREQ(2.60)
   2 AC_INIT([openocd], [0.4.0-dev],
   3   [OpenOCD Mailing List <openocd-development@lists.berlios.de>])
   4 AC_CONFIG_SRCDIR([src/openocd.c])
   5
   6 AM_INIT_AUTOMAKE([-Wall -Wno-portability dist-bzip2 dist-zip])
   7 AM_MAINTAINER_MODE
   8
   9 AM_CONFIG_HEADER(config.h)
  10 AH_BOTTOM([
  11 #include "system.h"
  12 #include "replacements.h"
  13 ])
  14
  15 AC_LANG_C
  16 AC_PROG_CC
  17 AC_PROG_CC_C99
  18 AM_PROG_CC_C_O
  19 AC_PROG_RANLIB
  20
  21 dnl disable checks for C++, Fortran and GNU Java Compiler
  22 m4_defun([_LT_AC_LANG_CXX_CONFIG], [:])
  23 m4_defun([_LT_AC_LANG_F77_CONFIG], [:])
  24 m4_defun([_LT_AC_LANG_GCJ_CONFIG], [:])
  25 AC_DISABLE_SHARED
  26 AC_PROG_LIBTOOL
  27 AC_SUBST(LIBTOOL_DEPS)
  28
  29
  30 dnl configure checks required for Jim files (these are obsolete w/ C99)
  31 AC_C_CONST
  32 AC_TYPE_LONG_LONG_INT
  33
  34
  35 AC_SEARCH_LIBS([ioperm], [ioperm])
  36 AC_SEARCH_LIBS([dlopen], [dl])
  37
  38 AC_CHECK_HEADERS(sys/socket.h)
  39 AC_CHECK_HEADERS(arpa/inet.h, [], [], [dnl
  40 #include <stdio.h>
  41 #ifdef STDC_HEADERS
  42 # include <stdlib.h>
  43 # include <stddef.h>
  44 #else
  45 # ifdef HAVE_STDLIB_H
  46 #  include <stdlib.h>
  47 # endif
  48 #endif
  49 #ifdef HAVE_SYS_SOCKET_H
  50 # include <sys/socket.h>
  51 #endif
  52 ])
  53 AC_CHECK_HEADERS(elf.h)
  54 AC_CHECK_HEADERS(dirent.h)
  55 AC_CHECK_HEADERS(fcntl.h)
  56 AC_CHECK_HEADERS(ifaddrs.h, [], [], [dnl
  57 #include <stdio.h>
  58 #ifdef STDC_HEADERS
  59 # include <stdlib.h>
  60 # include <stddef.h>
  61 #else
  62 # ifdef HAVE_STDLIB_H
  63 #  include <stdlib.h>
  64 # endif
  65 #endif
  66 #ifdef HAVE_SYS_SOCKET_H
  67 # include <sys/socket.h>
  68 #endif
  69 ])
  70 AC_CHECK_HEADERS(malloc.h)
  71 AC_CHECK_HEADERS(netdb.h)
  72 AC_CHECK_HEADERS([netinet/in.h], [], [], [dnl
  73 #include <stdio.h>
  74 #ifdef STDC_HEADERS
  75 # include <stdlib.h>
  76 # include <stddef.h>
  77 #else
  78 # ifdef HAVE_STDLIB_H
  79 #  include <stdlib.h>
  80 # endif
  81 #endif
  82 #ifdef HAVE_SYS_SOCKET_H
  83 # include <sys/socket.h>
  84 #endif
  85 ])
  86 AC_CHECK_HEADERS(netinet/tcp.h, [], [], [dnl
  87 #include <stdio.h>
  88 #ifdef STDC_HEADERS
  89 # include <stdlib.h>
  90 # include <stddef.h>
  91 #else
  92 # ifdef HAVE_STDLIB_H
  93 #  include <stdlib.h>
  94 # endif
  95 #endif
  96 #ifdef HAVE_SYS_SOCKET_H
  97 # include <sys/socket.h>
  98 #endif
  99 ])
 100 AC_CHECK_HEADERS(pthread.h)
 101 AC_CHECK_HEADERS(strings.h)
 102 AC_CHECK_HEADERS(sys/ioctl.h)
 103 AC_CHECK_HEADERS(sys/param.h)
 104 AC_CHECK_HEADERS(sys/poll.h)
 105 AC_CHECK_HEADERS(sys/select.h)
 106 AC_CHECK_HEADERS(sys/stat.h)
 107 AC_CHECK_HEADERS(sys/time.h)
 108 AC_CHECK_HEADERS(sys/types.h)
 109 AC_CHECK_HEADERS(unistd.h)
 110 AC_CHECK_HEADERS([net/if.h], [], [], [dnl
 111 #include <stdio.h>
 112 #ifdef STDC_HEADERS
 113 # include <stdlib.h>
 114 # include <stddef.h>
 115 #else
 116 # ifdef HAVE_STDLIB_H
 117 #  include <stdlib.h>
 118 # endif
 119 #endif
 120 #ifdef HAVE_SYS_SOCKET_H
 121 # include <sys/socket.h>
 122 #endif
 123 ])
 124
 125 AC_HEADER_ASSERT
 126 AC_HEADER_STDBOOL
 127 AC_HEADER_TIME
 128
 129 AC_C_BIGENDIAN
 130
 131 AC_CHECK_FUNCS(strndup)
 132 AC_CHECK_FUNCS(strnlen)
 133 AC_CHECK_FUNCS(gettimeofday)
 134 AC_CHECK_FUNCS(usleep)
 135 AC_CHECK_FUNCS(vasprintf)
 136
 137 build_bitbang=no
 138 build_bitq=no
 139 is_cygwin=no
 140 is_mingw=no
 141 is_win32=no
 142 is_darwin=no
 143
 144 if test $cross_compiling = no; then
 145   # guess-rev.sh only exists in the repository, not in the released archives
 146   AC_CHECK_FILE("$srcdir/guess-rev.sh", has_guess_rev=yes, has_guess_rev=no)
 147
 148   AC_MSG_CHECKING([whether to build a release])
 149   if test $has_guess_rev = no; then
 150     build_release=yes
 151   else
 152     build_release=no
 153   fi
 154   AC_MSG_RESULT($build_release)
 155 else
 156   build_release=yes
 157 fi
 158
 159 # We are not *ALWAYS* being installed in the standard place.
 160 # We may be installed in a "tool-build" specific location.
 161 # Normally with other packages - as part of a tool distro.
 162 # Thus - we should search that 'libdir' also.
 163 #
 164 # And - if we are being installed there - the odds are
 165 # The libraries unique to what we are are there too.
 166 #
 167
 168 # Expand nd deal with NONE - just like configure will do later
 169 OCDprefix=$prefix
 170 OCDxprefix=$exec_prefix
 171 test x"$OCDprefix"  = xNONE && OCDprefix=$ac_default_prefix
 172 # Let make expand exec_prefix.
 173 test x"$OCDxprefix" = xNONE && OCDxprefix="$OCDprefix"
 174
 175 # what matters is the "exec-prefix"
 176 if test "$OCDxprefix" != "$ac_default_prefix"
 177 then
 178     # We are installing in a non-standard place
 179     # Nonstandard --prefix and/or --exec-prefix
 180     # We have an override of some sort.
 181     # use build specific install library dir
 182
 183     LDFLAGS="$LDFLAGS -L$OCDxprefix/lib"
 184     # RPATH becomes an issue on Linux only
 185     if test $host_os = linux-gnu || test $host_os = linux ; then
 186       LDFLAGS="$LDFLAGS -Wl,-rpath,$OCDxprefix/lib"
 187     fi
 188     # The "INCDIR" is also usable
 189     CFLAGS="$CFLAGS -I$includedir"
 190 fi
 191
 192 AC_ARG_WITH(ftd2xx,
 193    AS_HELP_STRING([--with-ftd2xx=<PATH>],[This option has been removed.]),
 194   [
 195 # Option Given.
 196 cat << __EOF__
 197
 198 The option: --with-ftd2xx=<PATH> has been removed.
 199 On Linux, the new option is:
 200
 201   --with-ftd2xx-linux-tardir=/path/to/files
 202
 203 Where <path> is the path the the directory where the "tar.gz" file
 204 from FTDICHIP.COM was unpacked, for example:
 205
 206   --with-ftd2xx-linux-tardir=${HOME}/libftd2xx0.4.16
 207
 208 On Cygwin/MingW32, the new option is:
 209
 210   --with-ftd2xx-win32-zipdir=/path/to/files
 211
 212 Where <path> is the path to the directory where the "zip" file from
 213 FTDICHIP.COM was unpacked, for example:
 214
 215   --with-ftd2xx-win32-zipdir=${HOME}/ftd2xx.cdm.files
 216
 217 __EOF__
 218
 219    AC_MSG_ERROR([Sorry Cannot continue])
 220   ], [true])
 221
 222 #========================================
 223 # FTD2XXX support comes in 4 forms.
 224 #    (1) win32 - via a zip file
 225 #    (2) linux - via a tar file
 226 #    (3) linux/cygwin/mingw - via libftdi
 227 #    (4) darwin - installed under /usr/local
 228 #
 229 # In case (1) and (2) we need to know where the package was unpacked.
 230
 231 AC_ARG_WITH(ftd2xx-win32-zipdir,
 232   AS_HELP_STRING([--with-ftd2xx-win32-zipdir],[Where (CYGWIN/MINGW) the zip file from ftdichip.com was unpacked <default=search>]),
 233   [
 234   # option present
 235   if test -d $with_ftd2xx_win32_zipdir
 236   then
 237     with_ftd2xx_win32_zipdir=`cd $with_ftd2xx_win32_zipdir && pwd`
 238     AC_MSG_NOTICE([Using: ftdichip.com library: $with_ftd2xx_win32_zipdir])
 239   else
 240     AC_MSG_ERROR([Parameter to --with-ftd2xx-win32-zipdir is not a dir: $with_ftd2xx_win32_zipdir])
 241   fi
 242   ], [true])
 243
 244 AC_ARG_WITH(ftd2xx-linux-tardir,
 245   AS_HELP_STRING([--with-ftd2xx-linux-tardir], [Where (Linux/Unix) the tar file from ftdichip.com was unpacked <default=search>]),
 246   [
 247   # Option present
 248   if test $is_win32 = yes ; then
 249      AC_MSG_ERROR([The option: --with-ftd2xx-linux-tardir is only usable on linux])
 250   fi
 251   if test -d $with_ftd2xx_linux_tardir
 252   then
 253     with_ftd2xx_linux_tardir=`cd $with_ftd2xx_linux_tardir && pwd`
 254     AC_MSG_NOTICE([Using: ftdichip.com library: $with_ftd2xx_linux_tardir])
 255   else
 256     AC_MSG_ERROR([Parameter to --with-ftd2xx-linux-tardir is not a dir: $with_ftd2xx_linux_tardir])
 257   fi
 258   ], [true])
 259
 260 AC_ARG_WITH(ftd2xx-lib,
 261   AS_HELP_STRING([--with-ftd2xx-lib],
 262     [Use static or shared ftd2xx libs on default static]),
 263   [
 264   case "$withval" in
 265   static)
 266     with_ftd2xx_lib=$withval
 267     ;;
 268   shared)
 269     with_ftd2xx_lib=$withval
 270     ;;
 271   *)
 272     AC_MSG_ERROR([Option: --with-ftd2xx-lib=static or --with-ftd2xx-lib=shared not, $withval])
 273     ;;
 274   esac
 275   ], [
 276   # Default is static - it is simpler :-(
 277   with_ftd2xx_lib=static
 278   ])
 279
 280
 281 AC_ARG_ENABLE(doxygen-html,
 282   AS_HELP_STRING([--disable-doxygen-html],
 283     [Disable building Doxygen manual as HTML.]),
 284   [doxygen_as_html=$enableval], [doxygen_as_html=yes])
 285 AC_SUBST(doxygen_as_html)
 286 AC_MSG_CHECKING([whether to build Doxygen as HTML])
 287 AC_MSG_RESULT($doxygen_as_html)
 288
 289 AC_ARG_ENABLE(doxygen-pdf,
 290   AS_HELP_STRING([--enable-doxygen-pdf],
 291     [Enable building Doxygen manual as PDF.]),
 292   [doxygen_as_pdf=$enableval], [doxygen_as_pdf=no])
 293 AC_SUBST(doxygen_as_pdf)
 294 AC_MSG_CHECKING([whether to build Doxygen as PDF])
 295 AC_MSG_RESULT($doxygen_as_pdf)
 296
 297
 298 AC_ARG_ENABLE(gccwarnings,
 299   AS_HELP_STRING([--disable-gccwarnings], [Disable compiler warnings]),
 300   [gcc_warnings=$enableval], [gcc_warnings=yes])
 301
 302 AC_ARG_ENABLE(wextra,
 303   AS_HELP_STRING([--disable-wextra], [Disable extra compiler warnings]),
 304   [gcc_wextra=$enableval], [gcc_wextra=$gcc_warnings])
 305
 306 AC_ARG_ENABLE(werror,
 307   AS_HELP_STRING([--disable-werror], [Do not treat warnings as errors]),
 308   [gcc_werror=$enableval], [gcc_werror=$gcc_warnings])
 309
 310 # set default verbose options, overridden by following options
 311 debug_jtag_io=no
 312 debug_usb_io=no
 313 debug_usb_comms=no
 314
 315 AC_ARG_ENABLE(verbose,
 316   AS_HELP_STRING([--enable-verbose],
 317       [Enable verbose JTAG I/O messages (for debugging).]),
 318   [
 319   debug_jtag_io=$enableval
 320   debug_usb_io=$enableval
 321   debug_usb_comms=$enableval
 322   ], [])
 323
 324 AC_ARG_ENABLE(verbose_jtag_io,
 325   AS_HELP_STRING([--enable-verbose-jtag-io],
 326       [Enable verbose JTAG I/O messages (for debugging).]),
 327   [debug_jtag_io=$enableval], [])
 328 AC_ARG_ENABLE(verbose_usb_io,
 329   AS_HELP_STRING([--enable-verbose-usb-io],
 330       [Enable verbose USB I/O messages (for debugging)]),
 331   [debug_usb_io=$enableval], [])
 332 AC_ARG_ENABLE(verbose_usb_comms,
 333   AS_HELP_STRING([--enable-verbose-usb-comms],
 334       [Enable verbose USB communication messages (for debugging)]),
 335   [debug_usb_comms=$enableval], [])
 336
 337 AC_MSG_CHECKING([whether to enable verbose JTAG I/O messages]);
 338 AC_MSG_RESULT($debug_jtag_io)
 339 if test $debug_jtag_io = yes; then
 340   AC_DEFINE([_DEBUG_JTAG_IO_],[1], [Print verbose JTAG I/O messages])
 341 fi
 342
 343 AC_MSG_CHECKING([whether to enable verbose USB I/O messages]);
 344 AC_MSG_RESULT($debug_usb_io)
 345 if test $debug_usb_io = yes; then
 346   AC_DEFINE([_DEBUG_USB_IO_],[1], [Print verbose USB I/O messages])
 347 fi
 348
 349 AC_MSG_CHECKING([whether to enable verbose USB communication messages]);
 350 AC_MSG_RESULT($debug_usb_comms)
 351 if test $debug_usb_comms = yes; then
 352   AC_DEFINE([_DEBUG_USB_COMMS_],[1], [Print verbose USB communication messages])
 353 fi
 354
 355
 356 debug_malloc=no
 357 AC_ARG_ENABLE(malloc_logging,
 358   AS_HELP_STRING([--enable-malloc-logging],
 359       [Include free space in logging messages (requires malloc.h).]),
 360   [debug_malloc=$enableval], [])
 361
 362 AC_MSG_CHECKING([whether to enable malloc free space logging]);
 363 AC_MSG_RESULT($debug_malloc)
 364 if test $debug_malloc = yes; then
 365   AC_DEFINE([_DEBUG_FREE_SPACE_],[1], [Include malloc free space in logging])
 366 fi
 367
 368
 369 AC_ARG_ENABLE(dummy,
 370   AS_HELP_STRING([--enable-dummy], [Enable building the dummy port driver]),
 371   [build_dummy=$enableval], [build_dummy=no])
 372
 373 AC_ARG_ENABLE(parport,
 374   AS_HELP_STRING([--enable-parport], [Enable building the pc parallel port driver]),
 375   [build_parport=$enableval], [build_parport=no])
 376
 377 AC_ARG_ENABLE(parport_ppdev,
 378   AS_HELP_STRING([--disable-parport-ppdev],
 379       [Disable use of ppdev (/dev/parportN) for parport (for x86 only)]),
 380     [parport_use_ppdev=$enableval], [parport_use_ppdev=yes])
 381
 382 AC_ARG_ENABLE(parport_giveio,
 383     AS_HELP_STRING([--enable-parport-giveio],
 384       [Enable use of giveio for parport (for CygWin only)]),
 385     [parport_use_giveio=$enableval], [parport_use_giveio=])
 386
 387 AC_ARG_ENABLE(ft2232_libftdi,
 388   AS_HELP_STRING([--enable-ft2232_libftdi], [Enable building support for FT2232 based devices using the libftdi driver, opensource alternate of FTD2XX]),
 389   [build_ft2232_libftdi=$enableval], [build_ft2232_libftdi=no])
 390
 391 AC_ARG_ENABLE(ft2232_ftd2xx,
 392   AS_HELP_STRING([--enable-ft2232_ftd2xx], [Enable building support for FT2232 based devices using the FTD2XX driver from ftdichip.com]),
 393   [build_ft2232_ftd2xx=$enableval], [build_ft2232_ftd2xx=no])
 394
 395 AC_ARG_ENABLE(amtjtagaccel,
 396   AS_HELP_STRING([--enable-amtjtagaccel], [Enable building the Amontec JTAG-Accelerator driver]),
 397   [build_amtjtagaccel=$enableval], [build_amtjtagaccel=no])
 398
 399 AC_ARG_ENABLE(ecosboard,
 400   AS_HELP_STRING([--enable-ecosboard], [Enable building support for eCos based JTAG debugger]),
 401   [build_ecosboard=$enableval], [build_ecosboard=no])
 402
 403 AC_ARG_ENABLE(zy1000,
 404   AS_HELP_STRING([--enable-zy1000], [Enable ZY1000 interface]),
 405   [build_zy1000=$enableval], [build_zy1000=no])
 406
 407 AC_ARG_ENABLE(ioutil,
 408   AS_HELP_STRING([--enable-ioutil], [Enable ioutil functions - useful for standalone OpenOCD implementations]),
 409   [build_ioutil=$enableval], [build_ioutil=no])
 410
 411 AC_ARG_ENABLE(httpd,
 412   AS_HELP_STRING([--enable-httpd], [Enable builtin httpd server - useful for standalone OpenOCD implementations]),
 413   [build_httpd=$enableval], [build_httpd=no])
 414
 415 case "${host_cpu}" in
 416   arm*)
 417     AC_ARG_ENABLE(ep93xx,
 418       AS_HELP_STRING([--enable-ep93xx], [Enable building support for EP93xx based SBCs]),
 419       [build_ep93xx=$enableval], [build_ep93xx=no])
 420
 421     AC_ARG_ENABLE(at91rm9200,
 422       AS_HELP_STRING([--enable-at91rm9200], [Enable building support for AT91RM9200 based SBCs]),
 423       [build_at91rm9200=$enableval], [build_at91rm9200=no])
 424     ;;
 425
 426   *)
 427     build_ep93xx=no
 428     build_at91rm9200=no
 429     ;;
 430 esac
 431
 432 AC_ARG_ENABLE(gw16012,
 433   AS_HELP_STRING([--enable-gw16012], [Enable building support for the Gateworks GW16012 JTAG Programmer]),
 434   [build_gw16012=$enableval], [build_gw16012=no])
 435
 436 AC_ARG_ENABLE(presto_libftdi,
 437   AS_HELP_STRING([--enable-presto_libftdi], [Enable building support for ASIX Presto Programmer using the libftdi driver]),
 438   [build_presto_libftdi=$enableval], [build_presto_libftdi=no])
 439
 440 AC_ARG_ENABLE(presto_ftd2xx,
 441   AS_HELP_STRING([--enable-presto_ftd2xx], [Enable building support for ASIX Presto Programmer using the FTD2XX driver]),
 442   [build_presto_ftd2xx=$enableval], [build_presto_ftd2xx=no])
 443
 444 AC_ARG_ENABLE(usbprog,
 445   AS_HELP_STRING([--enable-usbprog], [Enable building support for the usbprog JTAG Programmer]),
 446   [build_usbprog=$enableval], [build_usbprog=no])
 447
 448 AC_ARG_ENABLE(oocd_trace,
 449   AS_HELP_STRING([--enable-oocd_trace],
 450   [Enable building support for some prototype OpenOCD+trace ETM capture hardware]),
 451   [build_oocd_trace=$enableval], [build_oocd_trace=no])
 452
 453 AC_ARG_ENABLE(jlink,
 454   AS_HELP_STRING([--enable-jlink], [Enable building support for the Segger J-Link JTAG Programmer]),
 455   [build_jlink=$enableval], [build_jlink=no])
 456
 457 AC_ARG_ENABLE(vsllink,
 458   AS_HELP_STRING([--enable-vsllink], [Enable building support for the Versaloon-Link JTAG Programmer]),
 459   [build_vsllink=$enableval], [build_vsllink=no])
 460
 461 AC_ARG_ENABLE(rlink,
 462   AS_HELP_STRING([--enable-rlink], [Enable building support for the Raisonance RLink JTAG Programmer]),
 463   [build_rlink=$enableval], [build_rlink=no])
 464
 465 AC_ARG_ENABLE(arm-jtag-ew,
 466   AS_HELP_STRING([--enable-arm-jtag-ew], [Enable building support for the Olimex ARM-JTAG-EW Programmer]),
 467   [build_armjtagew=$enableval], [build_armjtagew=no])
 468
 469 AC_ARG_ENABLE(minidriver_dummy,
 470   AS_HELP_STRING([--enable-minidriver-dummy], [Enable the dummy minidriver.]),
 471   [build_minidriver_dummy=$enableval], [build_minidriver_dummy=no])
 472
 473
 474 build_minidriver=no
 475 AC_MSG_CHECKING([whether to enable ZY1000 minidriver])
 476 if test $build_zy1000 = yes; then
 477   if test $build_minidriver = yes; then
 478     AC_MSG_ERROR([Multiple minidriver options have been enabled.])
 479   fi
 480   AC_DEFINE(HAVE_JTAG_MINIDRIVER_H, 1,
 481       [Define to 1 if you have the <jtag_minidriver.h> header file.])
 482   build_minidriver=yes
 483 fi
 484 AC_MSG_RESULT($build_zy1000)
 485
 486
 487 AC_MSG_CHECKING([whether to enable dummy minidriver])
 488 if test $build_minidriver_dummy = yes; then
 489   if test $build_minidriver = yes; then
 490     AC_MSG_ERROR([Multiple minidriver options have been enabled.])
 491   fi
 492   build_minidriver=yes
 493   AC_DEFINE(BUILD_MINIDRIVER_DUMMY, 1, [Use the dummy minidriver.])
 494   AC_DEFINE(HAVE_JTAG_MINIDRIVER_H, 1,
 495       [Define to 1 if you have the <jtag_minidriver.h> header file.])
 496 fi
 497 AC_MSG_RESULT($build_minidriver_dummy)
 498
 499 AC_MSG_CHECKING([whether standard drivers can be built])
 500 if test "$build_minidriver" = yes; then
 501   AC_MSG_RESULT([no])
 502   AC_MSG_WARN([Using the minidriver disables all other drivers.])
 503   sleep 2
 504 else
 505   AC_MSG_RESULT([yes])
 506 fi
 507
 508 case "${host_cpu}" in
 509   i?86|x86*)
 510     ;;
 511   *)
 512     if test x$parport_use_ppdev = xno; then
 513       AC_MSG_WARN([--disable-parport-ppdev is not supported by the host CPU])
 514     fi
 515     parport_use_ppdev=yes
 516     ;;
 517 esac
 518
 519 case $host in
 520   *-cygwin*)
 521     is_win32=yes
 522     parport_use_ppdev=no
 523
 524     AC_COMPILE_IFELSE(AC_LANG_PROGRAM([],[return __MINGW32__;]),
 525       [is_mingw=yes],[is_mingw=no])
 526     if test $is_mingw = yes; then
 527       AC_DEFINE(IS_MINGW, 1, [1 if building for MinGW.])
 528       if test x$parport_use_giveio = xno; then
 529         AC_MSG_WARN([--disable-parport-giveio is not supported by MinGW32 hosts])
 530       fi
 531       parport_use_giveio=yes
 532       is_cygwin=no
 533     else
 534       is_cygwin=yes
 535       AC_DEFINE(IS_CYGWIN, 1, [1 if building for Cygwin.])
 536       # sys/io.h needed under cygwin for parport access
 537       if test $build_parport = yes; then
 538         AC_CHECK_HEADERS(sys/io.h,[],AC_MSG_ERROR([Please install the cygwin ioperm package]))
 539       fi
 540     fi
 541
 542     AC_DEFINE(IS_WIN32, 1, [1 if building for Win32.])
 543     AC_DEFINE(IS_DARWIN, 0, [0 if not building for Darwin.])
 544     ;;
 545   *-mingw*)
 546     is_mingw=yes
 547     is_win32=yes
 548     parport_use_ppdev=no
 549
 550     if test x$parport_use_giveio = xno; then
 551       AC_MSG_WARN([--disable-parport-giveio is not supported by MinGW32 hosts])
 552     fi
 553     parport_use_giveio=yes
 554
 555     CFLAGS="$CFLAGS -D__USE_MINGW_ANSI_STDIO"
 556
 557     AC_DEFINE(IS_MINGW, 1, [1 if building for MinGW.])
 558     AC_DEFINE(IS_WIN32, 1, [1 if building for Win32.])
 559     AC_DEFINE(IS_DARWIN, 0, [0 if not building for Darwin.])
 560     ;;
 561   *darwin*)
 562     is_darwin=yes
 563
 564     if test x$parport_use_giveio = xyes; then
 565       AC_MSG_WARN([--enable-parport-giveio cannot be used by Darwin hosts])
 566     fi
 567     parport_use_giveio=no
 568
 569     AC_DEFINE(IS_CYGWIN, 0, [0 if not building for Cygwin.])
 570     AC_DEFINE(IS_WIN32, 0, [0 if not building for Win32.])
 571     AC_DEFINE(IS_DARWIN, 1, [1 if building for Darwin.])
 572     ;;
 573   *)
 574     if test x$parport_use_giveio = xyes; then
 575       AC_MSG_WARN([--enable-parport-giveio cannot be used by ]$host[ hosts])
 576     fi
 577     parport_use_giveio=no
 578     AC_DEFINE(IS_CYGWIN, 0, [0 if not building for Cygwin.])
 579     AC_DEFINE(IS_WIN32, 0, [0 if not building for Win32.])
 580     AC_DEFINE(IS_DARWIN, 0, [0 if not building for Darwin.])
 581     ;;
 582 esac
 583
 584 if test $build_parport = yes; then
 585   build_bitbang=yes
 586   AC_DEFINE(BUILD_PARPORT, 1, [1 if you want parport.])
 587 else
 588   AC_DEFINE(BUILD_PARPORT, 0, [0 if you don't want parport.])
 589 fi
 590
 591 if test $build_dummy = yes; then
 592   build_bitbang=yes
 593   AC_DEFINE(BUILD_DUMMY, 1, [1 if you want dummy driver.])
 594 else
 595   AC_DEFINE(BUILD_DUMMY, 0, [0 if you don't want dummy driver.])
 596 fi
 597
 598 if test $build_ep93xx = yes; then
 599   build_bitbang=yes
 600   AC_DEFINE(BUILD_EP93XX, 1, [1 if you want ep93xx.])
 601 else
 602   AC_DEFINE(BUILD_EP93XX, 0, [0 if you don't want ep93xx.])
 603 fi
 604
 605 if test $build_ecosboard = yes; then
 606   AC_DEFINE(BUILD_ECOSBOARD, 1, [1 if you want eCosBoard.])
 607 else
 608   AC_DEFINE(BUILD_ECOSBOARD, 0, [0 if you don't want eCosBoard.])
 609 fi
 610
 611 if test $build_zy1000 = yes; then
 612   AC_DEFINE(BUILD_ZY1000, 1, [1 if you want ZY1000.])
 613 else
 614   AC_DEFINE(BUILD_ZY1000, 0, [0 if you don't want ZY1000.])
 615 fi
 616
 617 if test $build_httpd = yes; then
 618   AC_DEFINE(BUILD_HTTPD, 1, [1 if you want httpd.])
 619 else
 620   AC_DEFINE(BUILD_HTTPD, 0, [0 if you don't want httpd.])
 621 fi
 622
 623 if test $build_at91rm9200 = yes; then
 624   build_bitbang=yes
 625   AC_DEFINE(BUILD_AT91RM9200, 1, [1 if you want at91rm9200.])
 626 else
 627   AC_DEFINE(BUILD_AT91RM9200, 0, [0 if you don't want at91rm9200.])
 628 fi
 629
 630 if test x$parport_use_ppdev = xyes; then
 631   AC_DEFINE(PARPORT_USE_PPDEV, 1, [1 if you want parport to use ppdev.])
 632 else
 633   AC_DEFINE(PARPORT_USE_PPDEV, 0, [0 if you don't want parport to use ppdev.])
 634 fi
 635
 636 if test x$parport_use_giveio = xyes; then
 637   AC_DEFINE(PARPORT_USE_GIVEIO, 1, [1 if you want parport to use giveio.])
 638 else
 639   AC_DEFINE(PARPORT_USE_GIVEIO, 0, [0 if you don't want parport to use giveio.])
 640 fi
 641
 642 if test $build_bitbang = yes; then
 643   AC_DEFINE(BUILD_BITBANG, 1, [1 if you want a bitbang interface.])
 644 else
 645   AC_DEFINE(BUILD_BITBANG, 0, [0 if you don't want a bitbang interface.])
 646 fi
 647
 648 if test $build_ft2232_libftdi = yes; then
 649   AC_DEFINE(BUILD_FT2232_LIBFTDI, 1, [1 if you want libftdi ft2232.])
 650 else
 651   AC_DEFINE(BUILD_FT2232_LIBFTDI, 0, [0 if you don't want libftdi ft2232.])
 652 fi
 653
 654 if test $build_ft2232_ftd2xx = yes; then
 655   AC_DEFINE(BUILD_FT2232_FTD2XX, 1, [1 if you want ftd2xx ft2232.])
 656 else
 657   AC_DEFINE(BUILD_FT2232_FTD2XX, 0, [0 if you don't want ftd2xx ft2232.])
 658 fi
 659
 660 if test $build_amtjtagaccel = yes; then
 661   AC_DEFINE(BUILD_AMTJTAGACCEL, 1, [1 if you want the Amontec JTAG-Accelerator driver.])
 662 else
 663   AC_DEFINE(BUILD_AMTJTAGACCEL, 0, [0 if you don't want the Amontec JTAG-Accelerator driver.])
 664 fi
 665
 666 if test $build_gw16012 = yes; then
 667   AC_DEFINE(BUILD_GW16012, 1, [1 if you want the Gateworks GW16012 driver.])
 668 else
 669   AC_DEFINE(BUILD_GW16012, 0, [0 if you don't want the Gateworks GW16012 driver.])
 670 fi
 671
 672 if test $build_presto_libftdi = yes; then
 673   build_bitq=yes
 674   AC_DEFINE(BUILD_PRESTO_LIBFTDI, 1, [1 if you want the ASIX PRESTO driver using libftdi.])
 675 else
 676   AC_DEFINE(BUILD_PRESTO_LIBFTDI, 0, [0 if you don't want the ASIX PRESTO driver using libftdi.])
 677 fi
 678
 679 if test $build_presto_ftd2xx = yes; then
 680   build_bitq=yes
 681   AC_DEFINE(BUILD_PRESTO_FTD2XX, 1, [1 if you want the ASIX PRESTO driver using FTD2XX.])
 682 else
 683   AC_DEFINE(BUILD_PRESTO_FTD2XX, 0, [0 if you don't want the ASIX PRESTO driver using FTD2XX.])
 684 fi
 685
 686 if test $build_bitq = yes; then
 687   AC_DEFINE(BUILD_BITQ, 1, [1 if you want a bitq interface.])
 688 else
 689   AC_DEFINE(BUILD_BITQ, 0, [0 if you don't want a bitq interface.])
 690 fi
 691
 692 if test $build_usbprog = yes; then
 693   AC_DEFINE(BUILD_USBPROG, 1, [1 if you want the usbprog JTAG driver.])
 694 else
 695   AC_DEFINE(BUILD_USBPROG, 0, [0 if you don't want the usbprog JTAG driver.])
 696 fi
 697
 698 if test $build_oocd_trace = yes; then
 699   AC_DEFINE(BUILD_OOCD_TRACE, 1, [1 if you want the OpenOCD+trace ETM capture driver.])
 700 else
 701   AC_DEFINE(BUILD_OOCD_TRACE, 0, [0 if you don't want the OpenOCD+trace ETM capture driver.])
 702 fi
 703
 704 if test $build_jlink = yes; then
 705   AC_DEFINE(BUILD_JLINK, 1, [1 if you want the J-Link JTAG driver.])
 706 else
 707   AC_DEFINE(BUILD_JLINK, 0, [0 if you don't want the J-Link JTAG driver.])
 708 fi
 709
 710 if test $build_vsllink = yes; then
 711   AC_DEFINE(BUILD_VSLLINK, 1, [1 if you want the Versaloon-Link JTAG driver.])
 712 else
 713   AC_DEFINE(BUILD_VSLLINK, 0, [0 if you don't want the Versaloon-Link JTAG driver.])
 714 fi
 715
 716 if test $build_rlink = yes; then
 717   AC_DEFINE(BUILD_RLINK, 1, [1 if you want the RLink JTAG driver.])
 718 else
 719   AC_DEFINE(BUILD_RLINK, 0, [0 if you don't want the RLink JTAG driver.])
 720 fi
 721
 722 if test $build_armjtagew = yes; then
 723   AC_DEFINE(BUILD_ARMJTAGEW, 1, [1 if you want the ARM-JTAG-EW JTAG driver.])
 724 else
 725   AC_DEFINE(BUILD_ARMJTAGEW, 0, [0 if you don't want the ARM-JTAG-EW JTAG driver.])
 726 fi
 727
 728 #-- Deal with MingW/Cygwin FTD2XX issues
 729
 730 if test $is_win32 = yes; then
 731 if test "${with_ftd2xx_linux_tardir+set}" = set
 732 then
 733   AC_MSG_ERROR([The option: with_ftd2xx_linux_tardir is for LINUX only.])
 734 fi
 735
 736 if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
 737   AC_MSG_CHECKING([for ftd2xx.lib exists (win32)])
 738
 739   # if we are given a zipdir...
 740   if test "${with_ftd2xx_win32_zipdir+set}" = set
 741   then
 742     # Set the CFLAGS for "ftd2xx.h"
 743     f=$with_ftd2xx_win32_zipdir/ftd2xx.h
 744     if test ! -f $f ; then
 745       AC_MSG_ERROR([File: $f cannot be found])
 746     fi
 747     CFLAGS="$CFLAGS -I$with_ftd2xx_win32_zipdir"
 748
 749     # And calculate the LDFLAGS for the machine
 750     case "$host_cpu" in
 751     i?86|x86_32)
 752       LDFLAGS="$LDFLAGS -L$with_ftd2xx_win32_zipdir/i386"
 753       LIBS="$LIBS -lftd2xx"
 754       f=$with_ftd2xx_win32_zipdir/i386/ftd2xx.lib
 755       ;;
 756     amd64|x86_64)
 757       LDFLAGS="$LDFLAGS -L$with_ftd2xx_win32_zipdir/amd64"
 758       LIBS="$LIBS -lftd2xx"
 759       f=$with_ftd2xx_win32_zipdir/amd64/ftd2xx.lib
 760       ;;
 761     *)
 762       AC_MSG_ERROR([Unknown Win32 host cpu: $host_cpu])
 763       ;;
 764     esac
 765     if test ! -f $f ; then
 766          AC_MSG_ERROR([Library: $f not found])
 767     fi
 768   else
 769     LIBS="$LIBS -lftd2xx"
 770     AC_MSG_WARN([ASSUMPTION: The (win32) FTDICHIP.COM files: ftd2xx.h and ftd2xx.lib are in a proper place])
 771   fi
 772 fi
 773 fi # win32
 774
 775 if test $is_darwin = yes ; then
 776 if test "${with_ftd2xx_win32_zipdir+set}" = set
 777 then
 778    AC_MSG_ERROR([The option: --with-ftd2xx-win32-zipdir is for win32 only])
 779 fi
 780 if test "${with_ftd2xx_linux_tardir+set}" = set
 781 then
 782    AC_MSG_ERROR([The option: with_ftd2xx_linux_tardir is for LINUX only.])
 783 fi
 784
 785 if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
 786    AC_MSG_CHECKING([for libftd2xx.a (darwin)])
 787
 788    if test ! -f /usr/local/include/ftd2xx.h ; then
 789       AC_MSG_ERROR([ftd2xx library from FTDICHIP.com seems to be missing, cannot find: /usr/local/include/ftd2xx.h])
 790    fi
 791
 792    CFLAGS="$CFLAGS -I/usr/local/include"
 793    LDFLAGS="$LDFLAGS -L/usr/local/lib"
 794    LIBS="$LIBS -lftd2xx"
 795    AC_MSG_RESULT([-L/usr/local/lib -lftd2xx])
 796 fi
 797 fi # darwin
 798
 799 if test $is_win32 = no && test $is_darwin = no ; then
 800
 801 if test "${with_ftd2xx_win32_zipdir+set}" = set
 802 then
 803    AC_MSG_ERROR([The option: --with-ftd2xx-win32-zipdir is for win32 only])
 804 fi
 805
 806 if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes ; then
 807    # Must be linux
 808    if test $host_os != linux-gnu && test $host_os != linux ; then
 809       AC_MSG_ERROR([The (linux) ftd2xx library from FTDICHIP.com is linux only. Try --enable-ft2232-libftdi instead])
 810   fi
 811   # Are we given a TAR directory?
 812   if test "${with_ftd2xx_linux_tardir+set}" = set
 813   then
 814     AC_MSG_CHECKING([uninstalled ftd2xx distribution])
 815     # The .H file is simple..
 816     FTD2XX_H=$with_ftd2xx_linux_tardir/ftd2xx.h
 817     if test ! -f "${FTD2XX_H}"; then
 818     AC_MSG_ERROR([Option: --with-ftd2xx-linux-tardir appears wrong, cannot find: ${FTD2XX_H}])
 819     fi
 820     CFLAGS="$CFLAGS -I$with_ftd2xx_linux_tardir"
 821     FTD2XX_LDFLAGS="-L$with_ftd2xx_linux_tardir"
 822     FTD2XX_LIB="-lftd2xx"
 823     if test $with_ftd2xx_lib != shared; then
 824       # Test #1 - Future proof - if/when ftdichip fixes their distro.
 825       # Try it with the simple ".a" suffix.
 826       FTD2XX_LIB="$with_ftd2xx_linux_tardir/static_lib/libftd2xx.a"
 827       if test -f "${FTD2XX_LIB}"; then
 828         FTD2XX_LDFLAGS="${FTD2XX_LDFLAGS}/static_lib"
 829       else
 830         # Test Number2.
 831         # Grr.. perhaps it exists as a version number?
 832         FTD2XX_LIB="$with_ftd2xx_linux_tardir/static_lib/libftd2xx.a.*.*.*"
 833         count=`ls ${FTD2XX_LIB} | wc -l`
 834         if test $count -gt 1 ; then
 835           AC_MSG_ERROR([Multiple libftd2xx.a files found in: $with_ftd2xx_linux_tardir/static_lib sorry cannot handle this yet])
 836         fi
 837         if test $count -ne 1 ; then
 838           AC_MSG_ERROR([Not found: $f, option: --with-ftd2xx-linux-tardir appears to be wrong])
 839         fi
 840         # Because the "-l" rules do not understand version numbers...
 841         # we will just stuff the absolute path onto the LIBS variable
 842         FTD2XX_LIB="`ls ${FTD2XX_LIB}` -lpthread"
 843         FTD2XX_LDFLAGS=""
 844       fi
 845     fi
 846     LDFLAGS="${LDFLAGS} ${FTD2XX_LDFLAGS}"
 847     LIBS="${LIBS} ${FTD2XX_LIB}"
 848     AC_MSG_RESULT([${FTD2XX_LDFLAGS} ${FTD2XX_LIB}])
 849   else
 850     AC_CHECK_HEADER([ftd2xx.h],[],[
 851         AC_MSG_ERROR([You seem to be missing the FTD2xx driver header file.])
 852       ])
 853     AC_SEARCH_LIBS([FT_GetLibraryVersion],[ftd2xx],,[
 854         AC_MSG_ERROR([You appear to be missing the FTD2xx driver library.])
 855       ],[])
 856   fi
 857 fi
 858 fi # linux
 859
 860 if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes; then
 861
 862 # Before we go any further - make sure we can *BUILD* and *RUN*
 863 # a simple app with the "ftd2xx.lib" file - in what ever form we where given
 864 # We should be able to compile, link and run this test program now
 865 AC_MSG_CHECKING([whether ftd2xx library works])
 866
 867 #
 868 # Save the LDFLAGS for later..
 869 LDFLAGS_SAVE=$LDFLAGS
 870 CFLAGS_SAVE=$CFLAGS
 871 _LDFLAGS=`eval echo $LDFLAGS`
 872 _CFLAGS=`eval echo $CFLAGS`
 873 LDFLAGS=$_LDFLAGS
 874 CFLAGS=$_CFLAGS
 875
 876 AC_RUN_IFELSE([
 877 #include "confdefs.h"
 878 #if IS_WIN32
 879 #include "windows.h"
 880 #endif
 881 #include <stdio.h>
 882 #include <ftd2xx.h>
 883
 884 int
 885 main( int argc, char **argv )
 886 {
 887   DWORD x;
 888   FT_GetLibraryVersion( &x );
 889   return 0;
 890 }
 891   ], [
 892     AC_MSG_RESULT([Success!])
 893   ], [
 894     AC_MSG_ERROR([Cannot build & run test program using ftd2xx.lib])
 895   ], [
 896     AC_MSG_RESULT([Skipping as we are cross-compiling])
 897   ])
 898
 899 AC_MSG_CHECKING([for ftd2xx highspeed device support])
 900 AC_COMPILE_IFELSE([
 901 #include "confdefs.h"
 902 #if IS_WIN32
 903 #include "windows.h"
 904 #endif
 905 #include <stdio.h>
 906 #include <ftd2xx.h>
 907 DWORD x = FT_DEVICE_4232H;
 908     ], [
 909       AC_DEFINE(BUILD_FT2232_HIGHSPEED, [1],
 910         [Support FT2232H/FT4232HS with FTD2XX or libftdi.])
 911       build_ft2232_highspeed=yes
 912     ], [
 913       build_ft2232_highspeed=no
 914     ])
 915   AC_MSG_RESULT([$build_ft2232_highspeed])
 916
 917   if test $build_ft2232_highspeed = no; then
 918     AC_MSG_WARN([You need a newer FTD2XX driver (version 2.04.16 or later).])
 919   fi
 920
 921 LDFLAGS=$LDFLAGS_SAVE
 922 CFLAGS=$CFLAGS_SAVE
 923 fi
 924
 925 if test $build_ft2232_libftdi = yes ; then
 926   # We assume: the package is preinstalled in the proper place
 927   # these present as 2 libraries..
 928   LIBS="$LIBS -lftdi -lusb"
 929   #
 930   # Try to build a small program.
 931   AC_MSG_CHECKING([Build & Link with libftdi...])
 932
 933   LDFLAGS_SAVE=$LDFLAGS
 934   CFLAGS_SAVE=$CFLAGS
 935   _LDFLAGS=`eval echo $LDFLAGS`
 936   _CFLAGS=`eval echo $CFLAGS`
 937   LDFLAGS=$_LDFLAGS
 938   CFLAGS=$_CFLAGS
 939
 940   AC_RUN_IFELSE([
 941 #include <stdio.h>
 942 #include <ftdi.h>
 943
 944 int
 945 main( int argc, char **argv )
 946 {
 947   struct ftdi_context *p;
 948   p = ftdi_new();
 949   if( p != NULL ){
 950       return 0;
 951   } else {
 952       fprintf( stderr, "calling ftdi_new() failed\n");
 953       return 1;
 954         }
 955 }
 956     ], [
 957       AC_MSG_RESULT([Success])
 958     ], [
 959       AC_MSG_ERROR([Cannot build & run test program using libftdi])
 960     ], [
 961       AC_MSG_RESULT([Skipping as we are cross-compiling])
 962     ])
 963
 964 AC_MSG_CHECKING([for libftdi highspeed device support])
 965 AC_COMPILE_IFELSE([
 966 #include <stdio.h>
 967 #include <ftdi.h>
 968 enum ftdi_chip_type x = TYPE_2232H;
 969     ], [
 970       AC_DEFINE(BUILD_FT2232_HIGHSPEED, [1],
 971         [Support FT2232H/FT4232HS with FTD2XX or libftdi.])
 972       build_ft2232_highspeed=yes
 973     ], [
 974       build_ft2232_highspeed=no
 975     ])
 976     AC_MSG_RESULT([$build_ft2232_highspeed])
 977
 978     if test $build_ft2232_highspeed = no; then
 979       AC_MSG_WARN([You need a newer libftdi version (0.16 or later).])
 980     fi
 981
 982   # Restore the 'unexpanded ldflags'
 983   LDFLAGS=$LDFLAGS_SAVE
 984   CFLAGS=$CFLAGS_SAVE
 985 fi
 986
 987 # check for usb.h when a driver will require it
 988 if test $build_jlink = yes -o $build_vsllink = yes -o $build_usbprog = yes -o \
 989   $build_rlink = yes -o $build_armjtagew = yes
 990 then
 991   AC_CHECK_HEADERS([usb.h],[],
 992   [AC_MSG_ERROR([usb.h is required to build some OpenOCD driver(s)])])
 993   build_usb=yes
 994 fi
 995
 996 AM_CONDITIONAL(RELEASE, test $build_release = yes)
 997 AM_CONDITIONAL(PARPORT, test $build_parport = yes)
 998 AM_CONDITIONAL(DUMMY, test $build_dummy = yes)
 999 AM_CONDITIONAL(GIVEIO, test x$parport_use_giveio = xyes)
1000 AM_CONDITIONAL(EP93XX, test $build_ep93xx = yes)
1001 AM_CONDITIONAL(ECOSBOARD, test $build_ecosboard = yes)
1002 AM_CONDITIONAL(ZY1000, test $build_zy1000 = yes)
1003 AM_CONDITIONAL(IOUTIL, test $build_ioutil = yes)
1004 AM_CONDITIONAL(HTTPD, test $build_httpd = yes)
1005 AM_CONDITIONAL(AT91RM9200, test $build_at91rm9200 = yes)
1006 AM_CONDITIONAL(BITBANG, test $build_bitbang = yes)
1007 AM_CONDITIONAL(FT2232_LIBFTDI, test $build_ft2232_libftdi = yes)
1008 AM_CONDITIONAL(FT2232_DRIVER, test $build_ft2232_ftd2xx = yes -o $build_ft2232_libftdi = yes)
1009 AM_CONDITIONAL(AMTJTAGACCEL, test $build_amtjtagaccel = yes)
1010 AM_CONDITIONAL(GW16012, test $build_gw16012 = yes)
1011 AM_CONDITIONAL(PRESTO_LIBFTDI, test $build_presto_libftdi = yes)
1012 AM_CONDITIONAL(PRESTO_DRIVER, test $build_presto_ftd2xx = yes -o $build_presto_libftdi = yes)
1013 AM_CONDITIONAL(USBPROG, test $build_usbprog = yes)
1014 AM_CONDITIONAL(OOCD_TRACE, test $build_oocd_trace = yes)
1015 AM_CONDITIONAL(JLINK, test $build_jlink = yes)
1016 AM_CONDITIONAL(VSLLINK, test $build_vsllink = yes)
1017 AM_CONDITIONAL(RLINK, test $build_rlink = yes)
1018 AM_CONDITIONAL(ARMJTAGEW, test $build_armjtagew = yes)
1019 AM_CONDITIONAL(USB, test $build_usb = yes)
1020 AM_CONDITIONAL(IS_CYGWIN, test $is_cygwin = yes)
1021 AM_CONDITIONAL(IS_MINGW, test $is_mingw = yes)
1022 AM_CONDITIONAL(IS_WIN32, test $is_win32 = yes)
1023 AM_CONDITIONAL(IS_DARWIN, test $is_darwin = yes)
1024 AM_CONDITIONAL(BITQ, test $build_bitq = yes)
1025
1026 AM_CONDITIONAL(MINIDRIVER, test $build_minidriver = yes)
1027 AM_CONDITIONAL(MINIDRIVER_DUMMY, test $build_minidriver_dummy = yes)
1028
1029 # Look for environ alternatives.  Possibility #1: is environ in unistd.h or stdlib.h?
1030 AC_MSG_CHECKING([for environ in unistd.h and stdlib.h])
1031 AC_COMPILE_IFELSE([
1032 #define _GNU_SOURCE
1033 #include <unistd.h>
1034 #include <stdlib.h>
1035 int main(int argc, char **argv) { char **ep = environ; }
1036   ], [
1037     AC_MSG_RESULT([yes])
1038     has_environ=yes
1039   ], [
1040     AC_MSG_RESULT([no])
1041
1042     # Possibility #2: can environ be found in an available library?
1043     AC_MSG_CHECKING([for extern environ])
1044     AC_LINK_IFELSE([
1045 extern char **environ;
1046 int main(int argc, char **argv) { char **ep = environ; }
1047       ], [
1048         AC_DEFINE(NEED_ENVIRON_EXTERN, [1], [Must declare 'environ' to use it.])
1049         has_environ=yes
1050       ], [
1051         has_environ=no
1052       ])
1053     AC_MSG_RESULT([${has_environ}])
1054   ])
1055
1056 if test "${has_environ}" != "yes" ; then
1057   AC_MSG_FAILURE([Could not find 'environ' in unistd.h or available libraries.])
1058 fi
1059
1060 AC_DEFINE([_GNU_SOURCE],[1],[Use GNU C library extensions (e.g. stdndup).])
1061
1062 # set default gcc warnings
1063 GCC_WARNINGS="-Wall -Wstrict-prototypes -Wformat-security"
1064 if test "${gcc_wextra}" = yes; then
1065   GCC_WARNINGS="${GCC_WARNINGS} -Wextra -Wno-unused-parameter"
1066   GCC_WARNINGS="${GCC_WARNINGS} -Wbad-function-cast"
1067   GCC_WARNINGS="${GCC_WARNINGS} -Wcast-align"
1068   GCC_WARNINGS="${GCC_WARNINGS} -Wredundant-decls"
1069 fi
1070 if test "${gcc_werror}" = yes; then
1071   GCC_WARNINGS="${GCC_WARNINGS} -Werror"
1072 fi
1073
1074 # overide default gcc cflags
1075 if test $gcc_warnings = yes; then
1076   CFLAGS="$CFLAGS $GCC_WARNINGS"
1077 fi
1078
1079 # Setup for compiling build tools
1080 AC_MSG_CHECKING([for a C compiler for build tools])
1081 if test $cross_compiling = yes; then
1082   AC_CHECK_PROGS(CC_FOR_BUILD, gcc cc)
1083   CFLAGS_FOR_BUILD="-g -O2 $GCC_WARNINGS"
1084 else
1085   CC_FOR_BUILD=$CC
1086   CFLAGS_FOR_BUILD=$CFLAGS
1087 fi
1088
1089 AC_MSG_RESULT([$CC_FOR_BUILD])
1090 AC_SUBST(CC_FOR_BUILD)
1091 AC_SUBST(CFLAGS_FOR_BUILD)
1092
1093 AC_MSG_CHECKING([for suffix of executable build tools])
1094 if test $cross_compiling = yes; then
1095   cat >conftest.c <<\_______EOF
1096 int main ()
1097 {
1098   exit (0);
1099 }
1100 _______EOF
1101   for i in .exe ""; do
1102     compile="$CC_FOR_BUILD conftest.c -o conftest$i"
1103     if AC_TRY_EVAL(compile); then
1104       if (./conftest) 2>&AC_FD_CC; then
1105         EXEEXT_FOR_BUILD=$i
1106         break
1107       fi
1108     fi
1109   done
1110   rm -f conftest*
1111   if test "${EXEEXT_FOR_BUILD+set}" != set; then
1112     AC_MSG_ERROR([Cannot determine suffix of executable build tools])
1113   fi
1114 else
1115   EXEEXT_FOR_BUILD=$EXEEXT
1116 fi
1117 AC_MSG_RESULT([$EXEEXT_FOR_BUILD])
1118 AC_SUBST(EXEEXT_FOR_BUILD)
1119
1120 AC_OUTPUT(dnl
1121     Makefile dnl
1122     src/Makefile dnl
1123     src/helper/Makefile dnl
1124     src/jtag/Makefile dnl
1125     src/xsvf/Makefile dnl
1126     src/svf/Makefile dnl
1127     src/target/Makefile dnl
1128     src/server/Makefile dnl
1129     src/flash/Makefile dnl
1130     src/pld/Makefile dnl
1131     doc/Makefile dnl
1132   )