configure.ac

   1 #                                               -*- Autoconf -*-
   2 # Process this file with autoconf to produce a configure script.
   3
   4 AC_PREREQ(2.61)
   5 AC_INIT([barry], [0.19.0], [barry-devel@lists.sourceforge.net])
   6 #AM_CONFIG_HEADER(config.h)
   7 AC_CONFIG_SRCDIR([src/barry.h])
   8 AC_CONFIG_HEADERS([config.h:config.h.in])
   9 AC_CONFIG_MACRO_DIR([m4])
  10 AM_INIT_AUTOMAKE([dist-bzip2])
  11
  12 AC_USE_SYSTEM_EXTENSIONS
  13
  14 AM_GNU_GETTEXT([external])
  15 # this is the verion of gettext, not barry
  16 AM_GNU_GETTEXT_VERSION([0.18.1])
  17
  18 #
  19 # Barry Version Numbers
  20 #
  21 BARRY_LOGICAL=0
  22 BARRY_MAJOR=19
  23 BARRY_MINOR=0
  24 AC_DEFINE_UNQUOTED([BARRY_LOGICAL], [$BARRY_LOGICAL], [Logical version number])
  25 AC_DEFINE_UNQUOTED([BARRY_MAJOR], [$BARRY_MAJOR], [Major library version number])
  26 AC_DEFINE_UNQUOTED([BARRY_MINOR], [$BARRY_MINOR], [Minor library version number])
  27 AC_DEFINE_UNQUOTED([BARRY_VER_STRING],
  28         ["${BARRY_LOGICAL}.${BARRY_MAJOR}.${BARRY_MINOR}"],
  29         [Full Barry version in string form])
  30 AC_SUBST([BARRY_LOGICAL])
  31 AC_SUBST([BARRY_MAJOR])
  32 AC_SUBST([BARRY_MINOR])
  33
  34 #
  35 # Checks for programs.
  36 #
  37 AC_PROG_CC
  38 AC_PROG_CXX
  39 AC_PROG_MAKE_SET
  40 AC_PROG_LIBTOOL
  41
  42 AX_C_CHECK_FLAG([-fvisibility=hidden], [], [],
  43         [HAVE_C_GCCVISIBILITY=1],
  44         [HAVE_C_GCCVISIBILITY=0])
  45 AX_CXX_CHECK_FLAG([-fvisibility=hidden], [], [],
  46         [HAVE_CXX_GCCVISIBILITY=1],
  47         [HAVE_CXX_GCCVISIBILITY=0])
  48 AM_CONDITIONAL([WITH_GCCVISIBILITY], [test "$HAVE_C_GCCVISIBILITY" = "1" -a "$HAVE_CXX_GCCVISIBILITY" = "1"])
  49
  50 AC_LANG([C++])
  51
  52 #
  53 # Checks for libraries.
  54 #
  55
  56 # libtar and libz don't have pkg-config files on many systems.
  57 # libz we can assume, but libtar we need to test for
  58 AC_ARG_WITH(libtar,
  59         [  --with-libtar=<path>    root path of libtar install],
  60         [LIBTAR_CFLAGS="-I$with_libtar/include"
  61          LIBTAR_LIBS="-L$with_libtar/lib -ltar"],
  62         [echo "Guessing libtar location... may not compile...";
  63          LIBTAR_CFLAGS=""
  64          LIBTAR_LIBS="-ltar"])
  65 AC_SUBST(LIBTAR_CFLAGS)
  66 AC_SUBST(LIBTAR_LIBS)
  67
  68 AC_CHECK_LIB([tar], [tar_open],
  69         [LIBTAR_FOUND=1
  70         AC_MSG_NOTICE([Found libtar, enabling libbarrybackup]) ],
  71         [LIBTAR_FOUND=0
  72         AC_MSG_NOTICE([Libtar NOT found, disabling libbarrybackup])],
  73         [$LIBTAR_CFLAGS $LIBTAR_LIBS])
  74
  75 AC_ARG_WITH(libz,
  76         [  --with-zlib=<path>      root path of zlib install],
  77         [LIBZ_CFLAGS="-I$with_libtar/include"
  78          LIBZ_LIBS="-L$with_libtar/lib -ltar"],
  79         [echo "Guessing zlib location... may not compile...";
  80          LIBZ_CFLAGS=""
  81          LIBZ_LIBS="-lz"])
  82 AC_SUBST(LIBZ_CFLAGS)
  83 AC_SUBST(LIBZ_LIBS)
  84
  85 AM_CONDITIONAL([WITH_BACKUP], [test "$LIBTAR_FOUND" = "1"])
  86
  87 # Always use Barry sockets and low level USB access, rather than
  88 # attempting to use third party socket APIs.
  89 #
  90 # Currently compiling without this flag won't work, but
  91 # it exists to allow areas of code which are only needed
  92 # when using Barry sockets to be easily marked
  93 #
  94 # The idea is that this is always set on Linux, but could be
  95 # disabled when building on Windows to allow a different
  96 # socket API to be used.
  97 AC_DEFINE([USE_BARRY_SOCKETS], [], [Define to use the low-level socket and USB code built into Barry.])
  98 USE_BARRY_SOCKETS=1
  99 AC_SUBST([USE_BARRY_SOCKETS])
 100 AM_CONDITIONAL([USE_BARRY_SOCKETS], [test "$USE_BARRY_SOCKETS" = "1"])
 101
 102 # Work out which USB library to use.
 103 # Ultimately this is all to set a few variables:
 104 #    USB_LIBRARY_CFLAGS - Compiler flags for chosen USB library
 105 #    USB_LIBRARY_LIBS   - Linker flags for chosen USB library
 106 # And one of the following defines:
 107 #    USE_LIBUSB_0_1
 108 #    USE_LIBUSB_1_0
 109
 110 # Check what USB libraries are available
 111 PKG_CHECK_MODULES([LIBUSB_0_1], [libusb],
 112         [HAVE_LIBUSB_0_1=1],
 113         [HAVE_LIBUSB_0_1=0])
 114
 115 PKG_CHECK_MODULES([LIBUSB_1_0], [libusb-1.0],
 116         [HAVE_LIBUSB_1_0=1],
 117         [HAVE_LIBUSB_1_0=0])
 118
 119 # Process any user provided 'with' arguments
 120 AC_ARG_WITH(libusb,
 121         AS_HELP_STRING([--with-libusb@<:@=<path>@:>@],
 122                 [use libusb 0.1 as the USB library, optionally providing the root path of libusb 0.1 installation]),
 123         [
 124          case x"$with_libusb" in
 125          xyes)
 126                 USE_LIBUSB_0_1=1
 127                 ;;
 128          xno)
 129                 USE_LIBUSB_0_1=0
 130                 ;;
 131          x*)
 132                 LIBUSB_0_1_CFLAGS="-I$with_libusb/include"
 133                 LIBUSB_0_1_LIBS="-L$with_libusb/lib -lusb"
 134                 USE_LIBUSB_0_1=1
 135                 ;;
 136          esac
 137          ],
 138         [])
 139
 140 AC_ARG_WITH(libusb1_0,
 141         AS_HELP_STRING([--with-libusb1_0@<:@=<path>@:>@],
 142                 [use libusb 1.0 as the USB library, optionally providing the root path of libusb 1.0 installation]),
 143         [
 144          case x"$with_libusb1_0" in
 145          xyes)
 146                 USE_LIBUSB_1_0=1
 147                 ;;
 148          xno)
 149                 USE_LIBUSB_1_0=0
 150                 ;;
 151          x*)
 152                 LIBUSB_1_0_CFLAGS="-I$with_libusb1_0/include/libusb-1.0"
 153                 LIBUSB_1_0_LIBS="-L$with_libusb1_0/lib -lusb-1.0"
 154                 USE_LIBUSB_1_0=1
 155                 ;;
 156          esac
 157          ],
 158         [])
 159
 160 # Work out which USB library should be used.
 161
 162 # Count how many libraries have been chosen
 163 USB_CHOSEN_COUNT=0
 164 if test x"$USE_LIBUSB_1_0" == x1 ; then
 165    USB_CHOSEN_COUNT=$(($USB_CHOSEN_COUNT + 1))
 166 fi
 167 if test x"$USE_LIBUSB_0_1" == x1 ; then
 168    USB_CHOSEN_COUNT=$(($USB_CHOSEN_COUNT + 1))
 169 fi
 170
 171 case $USB_CHOSEN_COUNT in
 172 0)
 173    # User didn't ask for a specific library, so pick one
 174    if test -n "${LIBUSB_1_0_CFLAGS+x}" -a -n "${LIBUSB_1_0_LIBS+x}" -a x"$USE_LIBUSB_1_0" != x0 ; then
 175       USE_LIBUSB_1_0=1
 176    elif test -n "${LIBUSB_0_1_CFLAGS+x}" -a -n "${LIBUSB_0_1_LIBS+x}" -a x"$USE_LIBUSB_0_1" != x0 ; then
 177       USE_LIBUSB_0_1=1
 178    fi
 179    ;;
 180 1)
 181    # User explicitly asked for a library, the code below will pick this.
 182    ;;
 183 *)
 184    AC_MSG_ERROR([Multiple USB libraries specified, please only specify one --with-<USBLIBRARY> option to the configure script.])
 185    ;;
 186 esac
 187
 188 AC_MSG_CHECKING([for which USB library to use])
 189 if test x"$USE_LIBUSB_1_0" = x1 ; then
 190    # User explicitly asked for libusb 1.0
 191    USB_LIBRARY_CFLAGS="$LIBUSB_1_0_CFLAGS"
 192    USB_LIBRARY_LIBS="$LIBUSB_1_0_LIBS"
 193    USE_LIBUSB_1_0=1
 194    AC_SUBST([USE_LIBUSB_1_0])
 195    AC_DEFINE([USE_LIBUSB_1_0], [], [Define if libusb 1.0 interface should be used])
 196    AC_MSG_RESULT([libusb-1.0])
 197
 198 elif test x"$USE_LIBUSB_0_1" = x1 ; then
 199    # User explicitly asked for libusb 0.1
 200    USB_LIBRARY_CFLAGS="$LIBUSB_0_1_CFLAGS"
 201    USB_LIBRARY_LIBS="$LIBUSB_0_1_LIBS"
 202    USE_LIBUSB_0_1=1
 203    AC_SUBST([USE_LIBUSB_0_1])
 204    AC_DEFINE([USE_LIBUSB_0_1], [], [Define if libusb 0.1 interface should be used])
 205    AC_MSG_RESULT([libusb-0.1])
 206
 207 else
 208    AC_MSG_RESULT([unknown])
 209    AC_MSG_WARN("ERROR: No USB library found automatically... build may fail if you don't specify --with-libusb or --with-libusb-1.0")
 210 fi
 211 AC_SUBST([USB_LIBRARY_CFLAGS])
 212 AC_SUBST([USB_LIBRARY_LIBS])
 213 AM_CONDITIONAL([USE_LIBUSB_0_1], [test "$USE_LIBUSB_0_1" = "1"])
 214 AM_CONDITIONAL([USE_LIBUSB_1_0], [test "$USE_LIBUSB_1_0" = "1"])
 215
 216 #
 217 # Allow user to disable libbarrysync, since it depends on glib-2.0 which
 218 # may not be possible to cross-compile.
 219 #
 220 AC_ARG_ENABLE([sync],
 221         AC_HELP_STRING([--disable-sync], [disable Barry sync library]),
 222         [
 223         if test x"$enableval" = "xno" ; then
 224                 SYNC_ENABLED=no
 225         else
 226                 SYNC_ENABLED=yes
 227         fi
 228         ],
 229         [SYNC_ENABLED=yes])
 230
 231 #
 232 # Boost library configuration
 233 #
 234 # Ok, the requirements:
 235 #
 236 #    - let the user enable/disable Boost support from configure
 237 #         - default to disabled
 238 #         - if enabled, and not available, error
 239 #
 240 #    - let user specify include path, and lib path, separately,
 241 #      since some Boost installations have an additional boost-1.34.1
 242 #      style directory in them
 243 #         - default to using no path overrides, assuming everything
 244 #           that is needed is in default distro locations
 245 #
 246 #    - let user specify the name of the serialization library, since
 247 #      the name of the library can change whether you're building
 248 #      from source or not
 249 #         - default to searching for boost_serialization or
 250 #           boost_serialization-mt, and error if not found
 251 #
 252 # Therefore:
 253 #
 254 #    --enable-boost                   Handles enable/disable
 255 #    --with-boost-include=path        Override the include path
 256 #    --with-boost-lib=path            Override the lib path
 257 #    --with-boost-serialization=name  Override the name of serialization
 258 #                                     library to link with
 259 #
 260
 261 AC_ARG_ENABLE([boost],
 262         AC_HELP_STRING([--enable-boost], [enable Boost support]),
 263         [
 264         if test x"$enableval" = "xno" ; then
 265                 BOOST_ENABLED=no
 266         else
 267                 BOOST_ENABLED=yes
 268         fi
 269         ],
 270         [BOOST_ENABLED=no])
 271
 272 AC_ARG_WITH([boost-include],
 273         AC_HELP_STRING(--with-boost-include=path,
 274                 [path to Boost include directory in order to make include <boost/something.hpp> valid (defaults to system paths)]),
 275         BOOST_INC_PATH="-I$withval",  BOOST_INC_PATH="" )
 276
 277 AC_ARG_WITH([boost-lib],
 278         AC_HELP_STRING(--with-boost-lib=path,
 279                 [path to Boost library directory (defaults to system paths)]),
 280         BOOST_LIB_PATH="-L$withval",  BOOST_LIB_PATH="" )
 281
 282 AC_ARG_WITH(boost-serialization,
 283         AC_HELP_STRING(--with-boost-serialization=name,
 284                 [name of serialization library to use with compiler's -l option (defaults to boost_serialization or boost_serialization-mt.)]),
 285         boost_serialization_name=$withval, boost_serialization_name="boost_serialization")
 286
 287 AC_MSG_NOTICE([using BOOST library... $BOOST_ENABLED])
 288 if test x"$BOOST_INC_PATH$BOOST_LIB_PATH" != x ; then
 289         AC_MSG_NOTICE([BOOST include options: $BOOST_INC_PATH])
 290         AC_MSG_NOTICE([BOOST library options: $BOOST_LIB_PATH])
 291 fi
 292
 293 if test x"$BOOST_ENABLED" = "xyes" ; then
 294         # Only $BOOST_LIB_PATH is given for this check, since no
 295         # headers are included in the autoconf main() test snippet.
 296         AC_CHECK_LIB($boost_serialization_name, main,
 297                 [BOOST_LDADD="-l$boost_serialization_name"],
 298                 [
 299                         AC_CHECK_LIB(boost_serialization-mt, main,
 300                                 [BOOST_LDADD="-lboost_serialization-mt"],
 301                                 [AC_MSG_ERROR(boost_serialization not found)],
 302                                 [$BOOST_LIB_PATH]
 303                                 )
 304                 ],
 305                 [$BOOST_LIB_PATH])
 306
 307         if test x"$BOOST_LDADD" != x ; then
 308                 AC_MSG_NOTICE([BOOST library name: $BOOST_LDADD])
 309         else
 310                 AC_MSG_ERROR([boost_serialization library not found])
 311         fi
 312 fi
 313
 314 AC_SUBST(BOOST_LIB_PATH)
 315 AC_SUBST(BOOST_INC_PATH)
 316 AC_SUBST(BOOST_LDADD)
 317 AM_CONDITIONAL([WITH_BOOST], [test "$BOOST_ENABLED" = "yes"])
 318
 319
 320 #PKG_CHECK_MODULES([OPENSSL], [openssl])
 321
 322 PKG_CHECK_MODULES([FUSE], [fuse >= 2.5],
 323         [FUSE_FOUND=1],
 324         [echo "FUSE library not found, skipping fuse module."; FUSE_FOUND=0]
 325         )
 326
 327 PKG_CHECK_MODULES([SDL], [sdl >= 1.2],
 328         [SDL_FOUND=1],
 329         [echo "SDL library not found, skipping bwatch tool."; SDL_FOUND=0]
 330         )
 331
 332 PKG_CHECK_MODULES([GLIB2], [glib-2.0],
 333         [GLIB2_FOUND=1],
 334         [echo "GLIB 2.0 not found, skipping sync library."; GLIB2_FOUND=0]
 335         )
 336
 337 pkgconfigdir=${libdir}/pkgconfig
 338 AC_SUBST(pkgconfigdir)
 339
 340 AC_SUBST(LIBUSB_CFLAGS)
 341 AC_SUBST(LIBUSB_LIBS)
 342
 343 AM_CONDITIONAL([WITH_FUSE], [test "$FUSE_FOUND" = "1"])
 344 AM_CONDITIONAL([WITH_SDL],  [test "$SDL_FOUND" = "1"])
 345 AM_CONDITIONAL([WITH_SYNC], [test "$GLIB2_FOUND" = "1" -a "$SYNC_ENABLED" = "yes"])
 346
 347 # Do not define the success case here, since we rely on -lpthread to be
 348 # automatically added to LIBS (the default macro behaviour)
 349 AC_CHECK_LIB([pthread], [pthread_create], [], [NEED_PTHREAD_CHECK2=1])
 350 if test "$NEED_PTHREAD_CHECK2" = "1"; then
 351         # See if pthreads is part of the core library or user provided
 352         # LDFLAGS anyway... this is needed for systems like QNX
 353         AC_MSG_CHECKING([for pthread_create in standard linker options])
 354         AC_CHECK_FUNC([pthread_create], [
 355                 AC_MSG_RESULT([ok])
 356         ], [
 357                 AC_MSG_ERROR([failed])
 358         ])
 359 fi
 360
 361 AC_CHECK_FUNC([getpwuid], [AC_DEFINE([HAVE_GETPWUID], [], [Defined if getpwuid is available])], [])
 362
 363
 364 NETWORK_LIBRARY_LIBS=
 365 AC_CHECK_FUNC([bind], [], [
 366         AC_CHECK_LIB([socket], [bind], [ NETWORK_LIBRARY_LIBS="-lsocket" ] , [
 367                 echo "**************************************************"
 368                 echo "WARNING: No networking library found, build errors"
 369                 echo "         will probably occur.                     "
 370                 echo "**************************************************"
 371         ])
 372 ])
 373 AC_SUBST([NETWORK_LIBRARY_LIBS])
 374
 375 AC_ARG_WITH(zlib,
 376         AC_HELP_STRING(--with-zlib, [force usage of zlib, and halt if not available]),
 377         force_zlib=$withval, force_zlib=no )
 378
 379 AC_CHECK_LIB([z], [crc32],
 380         [
 381                 AC_DEFINE([HAVE_ZLIB], [1], [Use crc32 when generating packed .cod files])
 382                 AC_ARG_VAR([ZLIB_LIBS], [Linker options for zlib])
 383                 ZLIB_LIBS="-lz"
 384         ],
 385         [
 386                 echo "*****************************************************************"
 387                 echo "WARNING: zlib not found... packed .cod files will fail crc checks"
 388                 echo "*****************************************************************"
 389                 AC_ARG_VAR([ZLIB_LIBS], [Linker options for zlib])
 390                 ZLIB_LIBS=""
 391                 if test "x$force_zlib" != xno ; then
 392                         AC_MSG_FAILURE([--with-zlib specified, but zlib not found])
 393                 fi
 394         ]
 395         )
 396
 397 PKG_CHECK_MODULES([LIBXMLXX], [libxml++-2.6],
 398         [LIBXMLXX_FOUND=1],
 399         [
 400                 echo "*****************************************************************"
 401                 echo "WARNING: libxml++ not found... ALX parser not included"
 402                 echo "*****************************************************************"
 403                 LIBXMLXX_FOUND=0
 404         ]
 405         )
 406
 407 AM_CONDITIONAL([WITH_ALX],  [test "$LIBXMLXX_FOUND" = "1"])
 408
 409
 410 AM_ICONV
 411
 412
 413 #
 414 # Checks for header files.
 415 #
 416 AC_HEADER_DIRENT
 417 AC_HEADER_STDC
 418 AC_CHECK_HEADERS([assert.h stdint.h time.h])
 419
 420 #
 421 # Checks for typedefs, structures, and compiler characteristics.
 422 #
 423 #AC_TYPE_SIZE_T
 424 AC_HEADER_TIME
 425 AC_STRUCT_TM
 426
 427 #
 428 # Checks for library functions.
 429 #
 430
 431 # checks that are buggy and need a C compiler only
 432 AC_LANG([C])
 433 # AC_FUNC_STRNLEN changes linker options for us, and depends on a src/strnlen.c
 434 HAVE_WORKING_STRNLEN=0
 435 AC_FUNC_STRNLEN
 436 if test "$ac_cv_func_strnlen_working" = "yes" ; then
 437         # If cross compiling for anything other than AIX then AC_FUNC_STRNLEN
 438         # will end up saying it's working. Before we trust it, check if the
 439         # function exists at all:
 440         AC_CHECK_FUNC([strnlen], [HAVE_WORKING_STRNLEN=1], [
 441                         HAVE_WORKING_STRNLEN=0
 442                         # Need to also add strnlen to AC_LIBOBJ as the
 443                         # AC_FUNC_STRNLEN macro won't have done that as it
 444                         # has guessed at everything being ok.
 445                         AC_LIBOBJ([strnlen])
 446                 ])
 447 fi
 448 if test "$ac_cv_func_strnlen_working" = "no" ; then
 449         HAVE_WORKING_STRNLEN=0
 450 fi
 451 AC_DEFINE_UNQUOTED(HAVE_WORKING_STRNLEN, $HAVE_WORKING_STRNLEN,
 452                 [Define to 1 if a working strnlen exists, 0 if not.])
 453
 454 # checks that work with C++
 455 AC_LANG([C++])
 456 AC_FUNC_CLOSEDIR_VOID
 457 AC_PROG_GCC_TRADITIONAL
 458 #AC_FUNC_MALLOC
 459 #AC_FUNC_MKTIME
 460 #AC_FUNC_REALLOC
 461 AC_FUNC_SELECT_ARGTYPES
 462 #AC_FUNC_STAT
 463
 464 AC_CHECK_FUNCS([bzero gettimeofday memset select strcasecmp strchr strerror strtol strtoul])
 465 AC_C_BIGENDIAN
 466
 467 AC_CONFIG_FILES([Makefile
 468                  po/Makefile.in
 469                  src/Makefile
 470                  tools/Makefile
 471                  examples/Makefile
 472                  man/Makefile
 473                  test/Makefile
 474                  libbarry-19.pc
 475                  libbarrydp-19.pc
 476                  libbarryjdwp-19.pc
 477                  libbarrysync-19.pc
 478                  libbarrybackup-19.pc
 479                  libbarryalx-19.pc])
 480
 481 #
 482 # nested packages
 483 #
 484 AC_ARG_ENABLE([gui], [AC_HELP_STRING([--enable-gui], [build the gui])])
 485 AC_ARG_ENABLE([opensync-plugin], [AC_HELP_STRING([--enable-opensync-plugin], [build the opensync plugin])])
 486 AC_ARG_ENABLE([opensync-plugin-4x], [AC_HELP_STRING([--enable-opensync-plugin-4x], [build the opensync 0.4x plugin])])
 487 AC_ARG_ENABLE([desktop], [AC_HELP_STRING([--enable-desktop], [build the desktop control panel])])
 488
 489 # make sure that the environment is setup before anything else
 490 if test "$enable_gui" = yes || test "$enable_opensync_plugin" = yes || test "$enable_opensync_plugin_4x" = yes || test "$enable_desktop" = yes; then
 491         export TREE_BUILD_CXXFLAGS="-I`pwd`"
 492         export TREE_BUILD_LDFLAGS="-L`pwd`/src"
 493         export PKG_CONFIG_PATH="`pwd`:$PKG_CONFIG_PATH"
 494 fi
 495
 496 # conditionally enable the subdirectory packages
 497 if test "$enable_gui" = yes; then
 498         AC_CONFIG_SUBDIRS([gui])
 499 fi
 500 if test "$enable_opensync_plugin" = yes; then
 501         AC_CONFIG_SUBDIRS([opensync-plugin])
 502 fi
 503 if test "$enable_opensync_plugin_4x" = yes; then
 504         AC_CONFIG_SUBDIRS([opensync-plugin-0.4x])
 505 fi
 506 if test "$enable_desktop" = yes; then
 507         AC_CONFIG_SUBDIRS([desktop])
 508 fi
 509
 510 #
 511 # Generate the scripts!
 512 #
 513 AC_OUTPUT
 514
 515 #
 516 # Add a special hack at the end, to let the user disable RPATH if he wants.
 517 #
 518 # http://wiki.debian.org/RpathIssue
 519 # http://lists.debian.org/debian-devel/2003/debian-devel-200306/msg00569.html
 520 # http://fedoraproject.org/wiki/Packaging:Guidelines#Removing_Rpath
 521 #
 522 AC_ARG_ENABLE([rpathhack],
 523         [AC_HELP_STRING([--enable-rpathhack], [patch libtool to remove RPATH])],
 524         [
 525 AC_MSG_RESULT([patching libtool to fix HIDEOUS BREAKAGE])
 526 sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' libtool
 527 sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
 528         ],
 529         [])
 530