libtool.m4

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