libtool.m4

   1 ## libtool.m4 - Configure libtool for the host system. -*-Shell-script-*-
   2 ## Copyright 1996, 1997, 1998, 1999, 2000, 2001
   3 ## Free Software Foundation, Inc.
   4 ## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   5 ##
   6 ## This program is free software; you can redistribute it and/or modify
   7 ## it under the terms of the GNU General Public License as published by
   8 ## the Free Software Foundation; either version 2 of the License, or
   9 ## (at your option) any later version.
  10 ##
  11 ## This program is distributed in the hope that it will be useful, but
  12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 ## General Public License for more details.
  15 ##
  16 ## You should have received a copy of the GNU General Public License
  17 ## along with this program; if not, write to the Free Software
  18 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19 ##
  20 ## As a special exception to the GNU General Public License, if you
  21 ## distribute this file as part of a program that contains a
  22 ## configuration script generated by Autoconf, you may include it under
  23 ## the same distribution terms that you use for the rest of that program.
  24
  25 # serial 45 AC_PROG_LIBTOOL
  26 AC_DEFUN(AC_PROG_LIBTOOL,[AC_REQUIRE([_AC_PROG_LIBTOOL])
  27 dnl If AC_PROG_CXX has already been expanded, run AC_LIBTOOL_CXX
  28 dnl immediately, otherwise, hook it in at the end of AC_PROG_CXX.
  29   AC_PROVIDE_IFELSE([AC_PROG_CXX],
  30     [AC_LIBTOOL_CXX],
  31     [define([AC_PROG_CXX], defn([AC_PROG_CXX])[AC_LIBTOOL_CXX
  32 ])])
  33
  34 dnl Quote A][M_PROG_GCJ so that aclocal doesn't bring it in needlessly.
  35 dnl If either AC_PROG_GCJ or A][M_PROG_GCJ have already been expanded, run
  36 dnl AC_LIBTOOL_GCJ immediately, otherwise, hook it in at the end of both.
  37   AC_PROVIDE_IFELSE([AC_PROG_GCJ],
  38     [AC_LIBTOOL_GCJ],
  39     [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
  40         [AC_LIBTOOL_GCJ],
  41         [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],
  42           [AC_LIBTOOL_GCJ],
  43         [ifdef([AC_PROG_GCJ],
  44                [define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[AC_LIBTOOL_GCJ
  45 ])])
  46          ifdef([A][M_PROG_GCJ],
  47                [define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[AC_LIBTOOL_GCJ
  48 ])])
  49          ifdef([LT_AC_PROG_GCJ],
  50                [define([LT_AC_PROG_GCJ], defn([LT_AC_PROG_GCJ])[AC_LIBTOOL_GCJ
  51 ])])])])])])
  52
  53 AC_DEFUN(_AC_PROG_LIBTOOL,
  54 [AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
  55 AC_BEFORE([$0],[AC_LIBTOOL_CXX])dnl
  56 AC_BEFORE([$0],[AC_LIBTOOL_GCJ])dnl
  57
  58 # Save cache, so that ltconfig can load it
  59 AC_CACHE_SAVE
  60
  61 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
  62 AR="$AR" LTCC="$CC" CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
  63 MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
  64 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \
  65 AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \
  66 objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \
  67 deplibs_check_method="$deplibs_check_method" file_magic_cmd="$file_magic_cmd" \
  68 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
  69 $libtool_flags --no-verify --build="$build" $ac_aux_dir/ltmain.sh $host \
  70 || AC_MSG_ERROR([libtool configure failed])
  71
  72 # Reload cache, that may have been modified by ltconfig
  73 AC_CACHE_LOAD
  74
  75 # This can be used to rebuild libtool when needed
  76 LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh $ac_aux_dir/ltcf-c.sh"
  77
  78 # Always use our own libtool.
  79 LIBTOOL='$(SHELL) $(top_builddir)/libtool'
  80 AC_SUBST(LIBTOOL)dnl
  81
  82 # Redirect the config.log output again, so that the ltconfig log is not
  83 # clobbered by the next message.
  84 exec 5>>./config.log
  85 ])
  86
  87 AC_DEFUN(AC_LIBTOOL_SETUP,
  88 [AC_PREREQ(2.13)dnl
  89 AC_REQUIRE([AC_ENABLE_SHARED])dnl
  90 AC_REQUIRE([AC_ENABLE_STATIC])dnl
  91 AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
  92 AC_REQUIRE([AC_CANONICAL_HOST])dnl
  93 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
  94 AC_REQUIRE([AC_PROG_CC])dnl
  95 AC_REQUIRE([AC_PROG_LD])dnl
  96 AC_REQUIRE([AC_PROG_LD_RELOAD_FLAG])dnl
  97 AC_REQUIRE([AC_PROG_NM])dnl
  98 AC_REQUIRE([AC_PROG_LN_S])dnl
  99 AC_REQUIRE([AC_DEPLIBS_CHECK_METHOD])dnl
 100 # Autoconf 2.13's AC_OBJEXT and AC_EXEEXT macros only works for C compilers!
 101 AC_REQUIRE([AC_OBJEXT])dnl
 102 AC_REQUIRE([AC_EXEEXT])dnl
 103 dnl
 104
 105 # Only perform the check for file, if the check method requires it
 106 case "$deplibs_check_method" in
 107 file_magic*)
 108   if test "$file_magic_cmd" = '$MAGIC_CMD'; then
 109     AC_PATH_MAGIC
 110   fi
 111   ;;
 112 esac
 113
 114 AC_CHECK_TOOL(RANLIB, ranlib, :)
 115 AC_CHECK_TOOL(STRIP, strip, :)
 116
 117 # Check for any special flags to pass to ltconfig.
 118 libtool_flags="--cache-file=$cache_file"
 119 test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
 120 test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
 121 test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
 122 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
 123 test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
 124 ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
 125 [libtool_flags="$libtool_flags --enable-dlopen"])
 126 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
 127 [libtool_flags="$libtool_flags --enable-win32-dll"])
 128 AC_ARG_ENABLE(libtool-lock,
 129   [  --disable-libtool-lock  avoid locking (might break parallel builds)])
 130 test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
 131 test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
 132
 133 AC_ARG_WITH(pic,
 134   [  --with-pic              try to use only PIC/non-PIC objects [default=use both]],
 135      pic_mode="$withval", pic_mode=default)
 136 test x"$pic_mode" = xyes && libtool_flags="$libtool_flags --prefer-pic"
 137 test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
 138
 139 # Some flags need to be propagated to the compiler or linker for good
 140 # libtool support.
 141 case "$host" in
 142 *-*-irix6*)
 143   # Find out which ABI we are using.
 144   echo '[#]line __oline__ "configure"' > conftest.$ac_ext
 145   if AC_TRY_EVAL(ac_compile); then
 146     case "`/usr/bin/file conftest.o`" in
 147     *32-bit*)
 148       LD="${LD-ld} -32"
 149       ;;
 150     *N32*)
 151       LD="${LD-ld} -n32"
 152       ;;
 153     *64-bit*)
 154       LD="${LD-ld} -64"
 155       ;;
 156     esac
 157   fi
 158   rm -rf conftest*
 159   ;;
 160
 161 *-*-sco3.2v5*)
 162   # On SCO OpenServer 5, we need -belf to get full-featured binaries.
 163   SAVE_CFLAGS="$CFLAGS"
 164   CFLAGS="$CFLAGS -belf"
 165   AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
 166     [AC_LANG_SAVE
 167      AC_LANG_C
 168      AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
 169      AC_LANG_RESTORE])
 170   if test x"$lt_cv_cc_needs_belf" != x"yes"; then
 171     # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
 172     CFLAGS="$SAVE_CFLAGS"
 173   fi
 174   ;;
 175
 176 ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
 177 [*-*-cygwin* | *-*-mingw* | *-*-pw32*)
 178   AC_CHECK_TOOL(DLLTOOL, dlltool, false)
 179   AC_CHECK_TOOL(AS, as, false)
 180   AC_CHECK_TOOL(OBJDUMP, objdump, false)
 181
 182   # recent cygwin and mingw systems supply a stub DllMain which the user
 183   # can override, but on older systems we have to supply one
 184   AC_CACHE_CHECK([if libtool should supply DllMain function], lt_cv_need_dllmain,
 185     [AC_TRY_LINK([],
 186       [extern int __attribute__((__stdcall__)) DllMain(void*, int, void*);
 187       DllMain (0, 0, 0);],
 188       [lt_cv_need_dllmain=no],[lt_cv_need_dllmain=yes])])
 189
 190   case "$host/$CC" in
 191   *-*-cygwin*/gcc*-mno-cygwin*|*-*-mingw*)
 192     # old mingw systems require "-dll" to link a DLL, while more recent ones
 193     # require "-mdll"
 194     SAVE_CFLAGS="$CFLAGS"
 195     CFLAGS="$CFLAGS -mdll"
 196     AC_CACHE_CHECK([how to link DLLs], lt_cv_cc_dll_switch,
 197       [AC_TRY_LINK([], [], [lt_cv_cc_dll_switch=-mdll],[lt_cv_cc_dll_switch=-dll])])
 198     CFLAGS="$SAVE_CFLAGS" ;;
 199   *-*-cygwin* | *-*-pw32*)
 200     # cygwin systems need to pass --dll to the linker, and not link
 201     # crt.o which will require a WinMain@16 definition.
 202     lt_cv_cc_dll_switch="-Wl,--dll -nostartfiles" ;;
 203   esac
 204   ;;
 205   ])
 206 esac
 207 ])
 208
 209 # AC_LIBTOOL_DLOPEN - enable checks for dlopen support
 210 AC_DEFUN(AC_LIBTOOL_DLOPEN, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
 211
 212 # AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
 213 AC_DEFUN(AC_LIBTOOL_WIN32_DLL, [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
 214
 215 # AC_ENABLE_SHARED - implement the --enable-shared flag
 216 # Usage: AC_ENABLE_SHARED[(DEFAULT)]
 217 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 218 #   `yes'.
 219 AC_DEFUN(AC_ENABLE_SHARED, [dnl
 220 define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
 221 AC_ARG_ENABLE(shared,
 222 changequote(<<, >>)dnl
 223 <<  --enable-shared[=PKGS]  build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
 224 changequote([, ])dnl
 225 [p=${PACKAGE-default}
 226 case "$enableval" in
 227 yes) enable_shared=yes ;;
 228 no) enable_shared=no ;;
 229 *)
 230   enable_shared=no
 231   # Look at the argument we got.  We use all the common list separators.
 232   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 233   for pkg in $enableval; do
 234     if test "X$pkg" = "X$p"; then
 235       enable_shared=yes
 236     fi
 237   done
 238   IFS="$ac_save_ifs"
 239   ;;
 240 esac],
 241 enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
 242 ])
 243
 244 # AC_DISABLE_SHARED - set the default shared flag to --disable-shared
 245 AC_DEFUN(AC_DISABLE_SHARED, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 246 AC_ENABLE_SHARED(no)])
 247
 248 # AC_ENABLE_STATIC - implement the --enable-static flag
 249 # Usage: AC_ENABLE_STATIC[(DEFAULT)]
 250 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 251 #   `yes'.
 252 AC_DEFUN(AC_ENABLE_STATIC, [dnl
 253 define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
 254 AC_ARG_ENABLE(static,
 255 changequote(<<, >>)dnl
 256 <<  --enable-static[=PKGS]  build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
 257 changequote([, ])dnl
 258 [p=${PACKAGE-default}
 259 case "$enableval" in
 260 yes) enable_static=yes ;;
 261 no) enable_static=no ;;
 262 *)
 263   enable_static=no
 264   # Look at the argument we got.  We use all the common list separators.
 265   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 266   for pkg in $enableval; do
 267     if test "X$pkg" = "X$p"; then
 268       enable_static=yes
 269     fi
 270   done
 271   IFS="$ac_save_ifs"
 272   ;;
 273 esac],
 274 enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
 275 ])
 276
 277 # AC_DISABLE_STATIC - set the default static flag to --disable-static
 278 AC_DEFUN(AC_DISABLE_STATIC, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 279 AC_ENABLE_STATIC(no)])
 280
 281
 282 # AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
 283 # Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
 284 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 285 #   `yes'.
 286 AC_DEFUN(AC_ENABLE_FAST_INSTALL, [dnl
 287 define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
 288 AC_ARG_ENABLE(fast-install,
 289 changequote(<<, >>)dnl
 290 <<  --enable-fast-install[=PKGS]  optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
 291 changequote([, ])dnl
 292 [p=${PACKAGE-default}
 293 case "$enableval" in
 294 yes) enable_fast_install=yes ;;
 295 no) enable_fast_install=no ;;
 296 *)
 297   enable_fast_install=no
 298   # Look at the argument we got.  We use all the common list separators.
 299   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 300   for pkg in $enableval; do
 301     if test "X$pkg" = "X$p"; then
 302       enable_fast_install=yes
 303     fi
 304   done
 305   IFS="$ac_save_ifs"
 306   ;;
 307 esac],
 308 enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
 309 ])
 310
 311 # AC_DISABLE_FAST_INSTALL - set the default to --disable-fast-install
 312 AC_DEFUN(AC_DISABLE_FAST_INSTALL, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 313 AC_ENABLE_FAST_INSTALL(no)])
 314
 315 # AC_LIBTOOL_PICMODE - implement the --with-pic flag
 316 # Usage: AC_LIBTOOL_PICMODE[(MODE)]
 317 #   Where MODE is either `yes' or `no'.  If omitted, it defaults to
 318 #   `both'.
 319 AC_DEFUN(AC_LIBTOOL_PICMODE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 320 pic_mode=ifelse($#,1,$1,default)])
 321
 322
 323 # AC_PATH_TOOL_PREFIX - find a file program which can recognise shared library
 324 AC_DEFUN(AC_PATH_TOOL_PREFIX,
 325 [AC_MSG_CHECKING([for $1])
 326 AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
 327 [case "$MAGIC_CMD" in
 328   /*)
 329   lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
 330   ;;
 331   ?:/*)
 332   lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a dos path.
 333   ;;
 334   *)
 335   ac_save_MAGIC_CMD="$MAGIC_CMD"
 336   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS=":"
 337 dnl $ac_dummy forces splitting on constant user-supplied paths.
 338 dnl POSIX.2 word splitting is done only on the output of word expansions,
 339 dnl not every word.  This closes a longstanding sh security hole.
 340   ac_dummy="ifelse([$2], , $PATH, [$2])"
 341   for ac_dir in $ac_dummy; do
 342     test -z "$ac_dir" && ac_dir=.
 343     if test -f $ac_dir/$1; then
 344       lt_cv_path_MAGIC_CMD="$ac_dir/$1"
 345       if test -n "$file_magic_test_file"; then
 346         case "$deplibs_check_method" in
 347         "file_magic "*)
 348           file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"
 349           MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
 350           if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
 351             egrep "$file_magic_regex" > /dev/null; then
 352             :
 353           else
 354             cat <<EOF 1>&2
 355
 356 *** Warning: the command libtool uses to detect shared libraries,
 357 *** $file_magic_cmd, produces output that libtool cannot recognize.
 358 *** The result is that libtool may fail to recognize shared libraries
 359 *** as such.  This will affect the creation of libtool libraries that
 360 *** depend on shared libraries, but programs linked with such libtool
 361 *** libraries will work regardless of this problem.  Nevertheless, you
 362 *** may want to report the problem to your system manager and/or to
 363 *** bug-libtool@gnu.org
 364
 365 EOF
 366           fi ;;
 367         esac
 368       fi
 369       break
 370     fi
 371   done
 372   IFS="$ac_save_ifs"
 373   MAGIC_CMD="$ac_save_MAGIC_CMD"
 374   ;;
 375 esac])
 376 MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
 377 if test -n "$MAGIC_CMD"; then
 378   AC_MSG_RESULT($MAGIC_CMD)
 379 else
 380   AC_MSG_RESULT(no)
 381 fi
 382 ])
 383
 384
 385 # AC_PATH_MAGIC - find a file program which can recognise a shared library
 386 AC_DEFUN(AC_PATH_MAGIC,
 387 [AC_REQUIRE([AC_CHECK_TOOL_PREFIX])dnl
 388 AC_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin:$PATH)
 389 if test -z "$lt_cv_path_MAGIC_CMD"; then
 390   if test -n "$ac_tool_prefix"; then
 391     AC_PATH_TOOL_PREFIX(file, /usr/bin:$PATH)
 392   else
 393     MAGIC_CMD=:
 394   fi
 395 fi
 396 ])
 397
 398
 399 # AC_PROG_LD - find the path to the GNU or non-GNU linker
 400 AC_DEFUN(AC_PROG_LD,
 401 [AC_ARG_WITH(gnu-ld,
 402 [  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
 403 test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
 404 AC_REQUIRE([AC_PROG_CC])dnl
 405 AC_REQUIRE([AC_CANONICAL_HOST])dnl
 406 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
 407 ac_prog=ld
 408 if test "$ac_cv_prog_gcc" = yes; then
 409   # Check if gcc -print-prog-name=ld gives a path.
 410   AC_MSG_CHECKING([for ld used by GCC])
 411   case $host in
 412   *-*-mingw*)
 413     # gcc leaves a trailing carriage return which upsets mingw
 414     ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
 415   *)
 416     ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
 417   esac
 418   case "$ac_prog" in
 419     # Accept absolute paths.
 420 changequote(,)dnl
 421     [\\/]* | [A-Za-z]:[\\/]*)
 422       re_direlt='/[^/][^/]*/\.\./'
 423 changequote([,])dnl
 424       # Canonicalize the path of ld
 425       ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
 426       while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
 427         ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
 428       done
 429       test -z "$LD" && LD="$ac_prog"
 430       ;;
 431   "")
 432     # If it fails, then pretend we aren't using GCC.
 433     ac_prog=ld
 434     ;;
 435   *)
 436     # If it is relative, then search for the first ld in PATH.
 437     with_gnu_ld=unknown
 438     ;;
 439   esac
 440 elif test "$with_gnu_ld" = yes; then
 441   AC_MSG_CHECKING([for GNU ld])
 442 else
 443   AC_MSG_CHECKING([for non-GNU ld])
 444 fi
 445 AC_CACHE_VAL(ac_cv_path_LD,
 446 [if test -z "$LD"; then
 447   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
 448   for ac_dir in $PATH; do
 449     test -z "$ac_dir" && ac_dir=.
 450     if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
 451       ac_cv_path_LD="$ac_dir/$ac_prog"
 452       # Check to see if the program is GNU ld.  I'd rather use --version,
 453       # but apparently some GNU ld's only accept -v.
 454       # Break only if it was the GNU/non-GNU ld that we prefer.
 455       if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
 456         test "$with_gnu_ld" != no && break
 457       else
 458         test "$with_gnu_ld" != yes && break
 459       fi
 460     fi
 461   done
 462   IFS="$ac_save_ifs"
 463 else
 464   ac_cv_path_LD="$LD" # Let the user override the test with a path.
 465 fi])
 466 LD="$ac_cv_path_LD"
 467 if test -n "$LD"; then
 468   AC_MSG_RESULT($LD)
 469 else
 470   AC_MSG_RESULT(no)
 471 fi
 472 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
 473 AC_PROG_LD_GNU
 474 ])
 475
 476 AC_DEFUN(AC_PROG_LD_GNU,
 477 [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
 478 [# I'd rather use --version here, but apparently some GNU ld's only accept -v.
 479 if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
 480   ac_cv_prog_gnu_ld=yes
 481 else
 482   ac_cv_prog_gnu_ld=no
 483 fi])
 484 with_gnu_ld=$ac_cv_prog_gnu_ld
 485 ])
 486
 487 # AC_PROG_LD_RELOAD_FLAG - find reload flag for linker
 488 #   -- PORTME Some linkers may need a different reload flag.
 489 AC_DEFUN(AC_PROG_LD_RELOAD_FLAG,
 490 [AC_CACHE_CHECK([for $LD option to reload object files], lt_cv_ld_reload_flag,
 491 [lt_cv_ld_reload_flag='-r'])
 492 reload_flag=$lt_cv_ld_reload_flag
 493 test -n "$reload_flag" && reload_flag=" $reload_flag"
 494 ])
 495
 496 # AC_DEPLIBS_CHECK_METHOD - how to check for library dependencies
 497 #  -- PORTME fill in with the dynamic library characteristics
 498 AC_DEFUN(AC_DEPLIBS_CHECK_METHOD,
 499 [AC_CACHE_CHECK([how to recognise dependant libraries],
 500 lt_cv_deplibs_check_method,
 501 [lt_cv_file_magic_cmd='$MAGIC_CMD'
 502 lt_cv_file_magic_test_file=
 503 lt_cv_deplibs_check_method='unknown'
 504 # Need to set the preceding variable on all platforms that support
 505 # interlibrary dependencies.
 506 # 'none' -- dependencies not supported.
 507 # `unknown' -- same as none, but documents that we really don't know.
 508 # 'pass_all' -- all dependencies passed with no checks.
 509 # 'test_compile' -- check by making test program.
 510 # 'file_magic [regex]' -- check by looking for files in library path
 511 # which responds to the $file_magic_cmd with a given egrep regex.
 512 # If you have `file' or equivalent on your system and you're not sure
 513 # whether `pass_all' will *always* work, you probably want this one.
 514
 515 case "$host_os" in
 516 aix4*)
 517   lt_cv_deplibs_check_method=pass_all
 518   ;;
 519
 520 beos*)
 521   lt_cv_deplibs_check_method=pass_all
 522   ;;
 523
 524 bsdi4*)
 525   changequote(,)dnl
 526   lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
 527   changequote([, ])dnl
 528   lt_cv_file_magic_cmd='/usr/bin/file -L'
 529   lt_cv_file_magic_test_file=/shlib/libc.so
 530   ;;
 531
 532 cygwin* | mingw* |pw32*)
 533   lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
 534   lt_cv_file_magic_cmd='$OBJDUMP -f'
 535   ;;
 536
 537 freebsd* )
 538   if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
 539     case "$host_cpu" in
 540     i*86 )
 541       # Not sure whether the presence of OpenBSD here was a mistake.
 542       # Let's accept both of them until this is cleared up.
 543       changequote(,)dnl
 544       lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD)/i[3-9]86 (compact )?demand paged shared library'
 545       changequote([, ])dnl
 546       lt_cv_file_magic_cmd=/usr/bin/file
 547       lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
 548       ;;
 549     esac
 550   else
 551     lt_cv_deplibs_check_method=pass_all
 552   fi
 553   ;;
 554
 555 gnu*)
 556   lt_cv_deplibs_check_method=pass_all
 557   ;;
 558
 559 hpux10.20*)
 560   # TODO:  Does this work for hpux-11 too?
 561   lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library'
 562   lt_cv_file_magic_cmd=/usr/bin/file
 563   lt_cv_file_magic_test_file=/usr/lib/libc.sl
 564   ;;
 565
 566 irix5* | irix6*)
 567   case "$host_os" in
 568   irix5*)
 569     # this will be overridden with pass_all, but let us keep it just in case
 570     lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"
 571     ;;
 572   *)
 573     case "$LD" in
 574     *-32|*"-32 ") libmagic=32-bit;;
 575     *-n32|*"-n32 ") libmagic=N32;;
 576     *-64|*"-64 ") libmagic=64-bit;;
 577     *) libmagic=never-match;;
 578     esac
 579     # this will be overridden with pass_all, but let us keep it just in case
 580     changequote(,)dnl
 581     lt_cv_deplibs_check_method="file_magic ELF ${libmagic} MSB mips-[1234] dynamic lib MIPS - version 1"
 582     changequote([, ])dnl
 583     ;;
 584   esac
 585   lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*`
 586   lt_cv_deplibs_check_method=pass_all
 587   ;;
 588
 589 # This must be Linux ELF.
 590 linux-gnu*)
 591   case "$host_cpu" in
 592   alpha* | i*86 | powerpc* | sparc* | ia64* )
 593     lt_cv_deplibs_check_method=pass_all ;;
 594   *)
 595     # glibc up to 2.1.1 does not perform some relocations on ARM
 596     changequote(,)dnl
 597     lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' ;;
 598     changequote([, ])dnl
 599   esac
 600   lt_cv_file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
 601   ;;
 602
 603 netbsd*)
 604   if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then :
 605   else
 606     changequote(,)dnl
 607     lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB shared object'
 608     changequote([, ])dnl
 609     lt_cv_file_magic_cmd='/usr/bin/file -L'
 610     lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
 611   fi
 612   ;;
 613
 614 osf3* | osf4* | osf5*)
 615   # this will be overridden with pass_all, but let us keep it just in case
 616   lt_cv_deplibs_check_method='file_magic COFF format alpha shared library'
 617   lt_cv_file_magic_test_file=/shlib/libc.so
 618   lt_cv_deplibs_check_method=pass_all
 619   ;;
 620
 621 sco3.2v5*)
 622   lt_cv_deplibs_check_method=pass_all
 623   ;;
 624
 625 solaris*)
 626   lt_cv_deplibs_check_method=pass_all
 627   lt_cv_file_magic_test_file=/lib/libc.so
 628   ;;
 629
 630 sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
 631   case "$host_vendor" in
 632   ncr)
 633     lt_cv_deplibs_check_method=pass_all
 634     ;;
 635   motorola)
 636     changequote(,)dnl
 637     lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
 638     changequote([, ])dnl
 639     lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
 640     ;;
 641   esac
 642   ;;
 643 esac
 644 ])
 645 file_magic_cmd=$lt_cv_file_magic_cmd
 646 deplibs_check_method=$lt_cv_deplibs_check_method
 647 ])
 648
 649
 650 # AC_PROG_NM - find the path to a BSD-compatible name lister
 651 AC_DEFUN(AC_PROG_NM,
 652 [AC_MSG_CHECKING([for BSD-compatible nm])
 653 AC_CACHE_VAL(ac_cv_path_NM,
 654 [if test -n "$NM"; then
 655   # Let the user override the test.
 656   ac_cv_path_NM="$NM"
 657 else
 658   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
 659   for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
 660     test -z "$ac_dir" && ac_dir=.
 661     tmp_nm=$ac_dir/${ac_tool_prefix}nm
 662     if test -f $tmp_nm || test -f $tmp_nm$ac_exeext ; then
 663       # Check to see if the nm accepts a BSD-compat flag.
 664       # Adding the `sed 1q' prevents false positives on HP-UX, which says:
 665       #   nm: unknown option "B" ignored
 666       # Tru64's nm complains that /dev/null is an invalid object file
 667       if ($tmp_nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep '(/dev/null|Invalid file or object type)' >/dev/null; then
 668         ac_cv_path_NM="$tmp_nm -B"
 669         break
 670       elif ($tmp_nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
 671         ac_cv_path_NM="$tmp_nm -p"
 672         break
 673       else
 674         ac_cv_path_NM=${ac_cv_path_NM="$tmp_nm"} # keep the first match, but
 675         continue # so that we can try to find one that supports BSD flags
 676       fi
 677     fi
 678   done
 679   IFS="$ac_save_ifs"
 680   test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
 681 fi])
 682 NM="$ac_cv_path_NM"
 683 AC_MSG_RESULT([$NM])
 684 ])
 685
 686 # AC_CHECK_LIBM - check for math library
 687 AC_DEFUN(AC_CHECK_LIBM,
 688 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
 689 LIBM=
 690 case "$host" in
 691 *-*-beos* | *-*-cygwin* | *-*-pw32*)
 692   # These system don't have libm
 693   ;;
 694 *-ncr-sysv4.3*)
 695   AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
 696   AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
 697   ;;
 698 *)
 699   AC_CHECK_LIB(m, main, LIBM="-lm")
 700   ;;
 701 esac
 702 ])
 703
 704 # AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
 705 # the libltdl convenience library and INCLTDL to the include flags for
 706 # the libltdl header and adds --enable-ltdl-convenience to the
 707 # configure arguments.  Note that LIBLTDL and INCLTDL are not
 708 # AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called.  If DIR is not
 709 # provided, it is assumed to be `libltdl'.  LIBLTDL will be prefixed
 710 # with '${top_builddir}/' and INCLTDL will be prefixed with
 711 # '${top_srcdir}/' (note the single quotes!).  If your package is not
 712 # flat and you're not using automake, define top_builddir and
 713 # top_srcdir appropriately in the Makefiles.
 714 AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 715   case "$enable_ltdl_convenience" in
 716   no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
 717   "") enable_ltdl_convenience=yes
 718       ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
 719   esac
 720   LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdlc.la
 721   INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
 722 ])
 723
 724 # AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
 725 # the libltdl installable library and INCLTDL to the include flags for
 726 # the libltdl header and adds --enable-ltdl-install to the configure
 727 # arguments.  Note that LIBLTDL and INCLTDL are not AC_SUBSTed, nor is
 728 # AC_CONFIG_SUBDIRS called.  If DIR is not provided and an installed
 729 # libltdl is not found, it is assumed to be `libltdl'.  LIBLTDL will
 730 # be prefixed with '${top_builddir}/' and INCLTDL will be prefixed
 731 # with '${top_srcdir}/' (note the single quotes!).  If your package is
 732 # not flat and you're not using automake, define top_builddir and
 733 # top_srcdir appropriately in the Makefiles.
 734 # In the future, this macro may have to be called after AC_PROG_LIBTOOL.
 735 AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 736   AC_CHECK_LIB(ltdl, main,
 737   [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
 738   [if test x"$enable_ltdl_install" = xno; then
 739      AC_MSG_WARN([libltdl not installed, but installation disabled])
 740    else
 741      enable_ltdl_install=yes
 742    fi
 743   ])
 744   if test x"$enable_ltdl_install" = x"yes"; then
 745     ac_configure_args="$ac_configure_args --enable-ltdl-install"
 746     LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdl.la
 747     INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
 748   else
 749     ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
 750     LIBLTDL="-lltdl"
 751     INCLTDL=
 752   fi
 753 ])
 754
 755 # If this macro is not defined by Autoconf, define it here.
 756 ifdef([AC_PROVIDE_IFELSE],
 757       [],
 758       [define([AC_PROVIDE_IFELSE],
 759               [ifdef([AC_PROVIDE_$1],
 760                      [$2], [$3])])])
 761
 762 # AC_LIBTOOL_CXX - enable support for C++ libraries
 763 AC_DEFUN(AC_LIBTOOL_CXX,[AC_REQUIRE([_AC_LIBTOOL_CXX])])
 764 AC_DEFUN(_AC_LIBTOOL_CXX,
 765 [AC_REQUIRE([AC_PROG_LIBTOOL])
 766 AC_REQUIRE([AC_PROG_CXX])
 767 AC_REQUIRE([AC_PROG_CXXCPP])
 768 LIBTOOL_DEPS=$LIBTOOL_DEPS" $ac_aux_dir/ltcf-cxx.sh"
 769 lt_save_CC="$CC"
 770 lt_save_CFLAGS="$CFLAGS"
 771 dnl Make sure LTCC is set to the C compiler, i.e. set LTCC before CC
 772 dnl is set to the C++ compiler.
 773 AR="$AR" LTCC="$CC" CC="$CXX" CXX="$CXX" CFLAGS="$CXXFLAGS" CPPFLAGS="$CPPFLAGS" \
 774 MAGIC_CMD="$MAGIC_CMD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
 775 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \
 776 AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \
 777 objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \
 778 deplibs_check_method="$deplibs_check_method" \
 779 file_magic_cmd="$file_magic_cmd" \
 780 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig -o libtool $libtool_flags \
 781 --build="$build" --add-tag=CXX $ac_aux_dir/ltcf-cxx.sh $host \
 782 || AC_MSG_ERROR([libtool tag configuration failed])
 783 CC="$lt_save_CC"
 784 CFLAGS="$lt_save_CFLAGS"
 785
 786 # Redirect the config.log output again, so that the ltconfig log is not
 787 # clobbered by the next message.
 788 exec 5>>./config.log
 789 ])
 790
 791 # AC_LIBTOOL_GCJ - enable support for GCJ libraries
 792 AC_DEFUN(AC_LIBTOOL_GCJ,[AC_REQUIRE([_AC_LIBTOOL_GCJ])])
 793 AC_DEFUN(_AC_LIBTOOL_GCJ,
 794 [AC_REQUIRE([AC_PROG_LIBTOOL])
 795 AC_PROVIDE_IFELSE([AC_PROG_GCJ],[],
 796   [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],[],
 797     [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],[],
 798       [ifdef([AC_PROG_GCJ],[AC_REQUIRE([AC_PROG_GCJ])],
 799          [ifdef([A][M_PROG_GCJ],[AC_REQUIRE([A][M_PROG_GCJ])],
 800            [AC_REQUIRE([A][C_PROG_GCJ_OR_A][M_PROG_GCJ])])])])])])
 801 LIBTOOL_DEPS=$LIBTOOL_DEPS" $ac_aux_dir/ltcf-gcj.sh"
 802 lt_save_CC="$CC"
 803 lt_save_CFLAGS="$CFLAGS"
 804 dnl Make sure LTCC is set to the C compiler, i.e. set LTCC before CC
 805 dnl is set to the C++ compiler.
 806 AR="$AR" LTCC="$CC" CC="$GCJ" CFLAGS="$GCJFLAGS" CPPFLAGS="$CPPFLAGS" \
 807 MAGIC_CMD="$MAGIC_CMD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
 808 LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \
 809 AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \
 810 objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \
 811 deplibs_check_method="$deplibs_check_method" \
 812 file_magic_cmd="$file_magic_cmd" \
 813 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig -o libtool $libtool_flags \
 814 --build="$build" --add-tag=GCJ $ac_aux_dir/ltcf-gcj.sh $host \
 815 || AC_MSG_ERROR([libtool tag configuration failed])
 816 CC="$lt_save_CC"
 817 CFLAGS="$lt_save_CFLAGS"
 818
 819 # Redirect the config.log output again, so that the ltconfig log is not
 820 # clobbered by the next message.
 821 exec 5>>./config.log
 822 ])
 823
 824 dnl old names
 825 AC_DEFUN(AM_PROG_LIBTOOL, [indir([AC_PROG_LIBTOOL])])dnl
 826 AC_DEFUN(AM_ENABLE_SHARED, [indir([AC_ENABLE_SHARED], $@)])dnl
 827 AC_DEFUN(AM_ENABLE_STATIC, [indir([AC_ENABLE_STATIC], $@)])dnl
 828 AC_DEFUN(AM_DISABLE_SHARED, [indir([AC_DISABLE_SHARED], $@)])dnl
 829 AC_DEFUN(AM_DISABLE_STATIC, [indir([AC_DISABLE_STATIC], $@)])dnl
 830 AC_DEFUN(AM_PROG_LD, [indir([AC_PROG_LD])])dnl
 831 AC_DEFUN(AM_PROG_NM, [indir([AC_PROG_NM])])dnl
 832
 833 dnl This is just to silence aclocal about the macro not being used
 834 ifelse([AC_DISABLE_FAST_INSTALL])dnl
 835
 836 AC_DEFUN([LT_AC_PROG_GCJ],[
 837   AC_CHECK_TOOL(GCJ, gcj, no)
 838   test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
 839   AC_SUBST(GCJFLAGS)
 840 ])