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 46 AC_PROG_LIBTOOL
26AC_DEFUN([AC_PROG_LIBTOOL],
27[AC_REQUIRE([_AC_PROG_LIBTOOL])dnl
28dnl If AC_PROG_CXX has already been expanded, run AC_LIBTOOL_CXX
29dnl immediately, otherwise, hook it in at the end of AC_PROG_CXX.
30  AC_PROVIDE_IFELSE([AC_PROG_CXX],
31    [AC_LIBTOOL_CXX],
32    [define([AC_PROG_CXX], defn([AC_PROG_CXX])[AC_LIBTOOL_CXX
33])])
34
35dnl Quote A][M_PROG_GCJ so that aclocal doesn't bring it in needlessly.
36dnl If either AC_PROG_GCJ or A][M_PROG_GCJ have already been expanded, run
37dnl AC_LIBTOOL_GCJ immediately, otherwise, hook it in at the end of both.
38  AC_PROVIDE_IFELSE([AC_PROG_GCJ],
39    [AC_LIBTOOL_GCJ],
40    [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
41        [AC_LIBTOOL_GCJ],
42	[AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],
43	  [AC_LIBTOOL_GCJ],
44	[ifdef([AC_PROG_GCJ],
45	       [define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[AC_LIBTOOL_GCJ
46])])
47	 ifdef([A][M_PROG_GCJ],
48	       [define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[AC_LIBTOOL_GCJ
49])])
50	 ifdef([LT_AC_PROG_GCJ],
51	       [define([LT_AC_PROG_GCJ], defn([LT_AC_PROG_GCJ])[AC_LIBTOOL_GCJ
52])])])])])])
53
54AC_DEFUN([_AC_PROG_LIBTOOL],
55[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
56AC_BEFORE([$0],[AC_LIBTOOL_CXX])dnl
57AC_BEFORE([$0],[AC_LIBTOOL_GCJ])dnl
58
59# Save cache, so that ltconfig can load it
60AC_CACHE_SAVE
61
62# Actually configure libtool.  ac_aux_dir is where install-sh is found.
63AR="$AR" LTCC="$CC" CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
64MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
65LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \
66AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \
67objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \
68deplibs_check_method="$deplibs_check_method" file_magic_cmd="$file_magic_cmd" \
69${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
70$libtool_flags --no-verify --build="$build" $ac_aux_dir/ltmain.sh $host \
71|| AC_MSG_ERROR([libtool configure failed])
72
73# Reload cache, that may have been modified by ltconfig
74AC_CACHE_LOAD
75
76# This can be used to rebuild libtool when needed
77LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh $ac_aux_dir/ltcf-c.sh"
78
79# Always use our own libtool.
80LIBTOOL='$(SHELL) $(top_builddir)/libtool'
81AC_SUBST(LIBTOOL)dnl
82
83# Redirect the config.log output again, so that the ltconfig log is not
84# clobbered by the next message.
85exec 5>>./config.log
86])
87
88AC_DEFUN([AC_LIBTOOL_SETUP],
89[AC_PREREQ(2.13)dnl
90AC_REQUIRE([AC_ENABLE_SHARED])dnl
91AC_REQUIRE([AC_ENABLE_STATIC])dnl
92AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
93AC_REQUIRE([AC_CANONICAL_HOST])dnl
94AC_REQUIRE([AC_CANONICAL_BUILD])dnl
95AC_REQUIRE([AC_PROG_CC])dnl
96AC_REQUIRE([AC_PROG_LD])dnl
97AC_REQUIRE([AC_PROG_LD_RELOAD_FLAG])dnl
98AC_REQUIRE([AC_PROG_NM])dnl
99AC_REQUIRE([AC_PROG_LN_S])dnl
100AC_REQUIRE([AC_DEPLIBS_CHECK_METHOD])dnl
101# Autoconf 2.13's AC_OBJEXT and AC_EXEEXT macros only works for C compilers!
102AC_REQUIRE([AC_OBJEXT])dnl
103AC_REQUIRE([AC_EXEEXT])dnl
104dnl
105
106# Only perform the check for file, if the check method requires it
107case $deplibs_check_method in
108file_magic*)
109  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
110    AC_PATH_MAGIC
111  fi
112  ;;
113esac
114
115AC_CHECK_TOOL(RANLIB, ranlib, :)
116AC_CHECK_TOOL(STRIP, strip, :)
117
118# Check for any special flags to pass to ltconfig.
119libtool_flags="--cache-file=$cache_file"
120test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
121test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
122test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
123test "$GCC" = yes && libtool_flags="$libtool_flags --with-gcc"
124test "$lt_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
125ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
126[libtool_flags="$libtool_flags --enable-dlopen"])
127ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
128[libtool_flags="$libtool_flags --enable-win32-dll"])
129AC_ARG_ENABLE(libtool-lock,
130  [  --disable-libtool-lock  avoid locking (might break parallel builds)])
131test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
132test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
133
134AC_ARG_WITH(pic,
135  [  --with-pic              try to use only PIC/non-PIC objects [default=use both]],
136     pic_mode="$withval", pic_mode=default)
137test x"$pic_mode" = xyes && libtool_flags="$libtool_flags --prefer-pic"
138test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
139
140# Some flags need to be propagated to the compiler or linker for good
141# libtool support.
142case $host in
143*-*-irix6*)
144  # Find out which ABI we are using.
145  echo '[#]line __oline__ "configure"' > conftest.$ac_ext
146  if AC_TRY_EVAL(ac_compile); then
147   if test "$lt_cv_prog_gnu_ld" = yes; then
148    case `/usr/bin/file conftest.$ac_objext` in
149    *32-bit*)
150      LD="${LD-ld} -melf32bsmip"
151      ;;
152    *N32*)
153      LD="${LD-ld} -melf32bmipn32"
154      ;;
155    *64-bit*)
156      LD="${LD-ld} -melf64bmip"
157      ;;
158    esac
159   else
160    case `/usr/bin/file conftest.$ac_objext` in
161    *32-bit*)
162      LD="${LD-ld} -32"
163      ;;
164    *N32*)
165      LD="${LD-ld} -n32"
166      ;;
167    *64-bit*)
168      LD="${LD-ld} -64"
169      ;;
170    esac
171   fi
172  fi
173  rm -rf conftest*
174  ;;
175
176ia64-*-hpux*)
177  # Find out which ABI we are using.
178  echo 'int i;' > conftest.$ac_ext
179  if AC_TRY_EVAL(ac_compile); then
180    case "`/usr/bin/file conftest.o`" in
181    *ELF-32*)
182      HPUX_IA64_MODE="32"
183      ;;
184    *ELF-64*)
185      HPUX_IA64_MODE="64"
186      ;;
187    esac
188  fi
189  rm -rf conftest*
190  ;;
191
192*-*-sco3.2v5*)
193  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
194  SAVE_CFLAGS="$CFLAGS"
195  CFLAGS="$CFLAGS -belf"
196  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
197    [AC_LANG_SAVE
198     AC_LANG_C
199     AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
200     AC_LANG_RESTORE])
201  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
202    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
203    CFLAGS="$SAVE_CFLAGS"
204  fi
205  ;;
206
207ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
208[*-*-cygwin* | *-*-mingw* | *-*-pw32*)
209  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
210  AC_CHECK_TOOL(AS, as, false)
211  AC_CHECK_TOOL(OBJDUMP, objdump, false)
212
213  # recent cygwin and mingw systems supply a stub DllMain which the user
214  # can override, but on older systems we have to supply one
215  AC_CACHE_CHECK([if libtool should supply DllMain function], lt_cv_need_dllmain,
216    [AC_TRY_LINK([],
217      [extern int __attribute__((__stdcall__)) DllMain(void*, int, void*);
218      DllMain (0, 0, 0);],
219      [lt_cv_need_dllmain=no],[lt_cv_need_dllmain=yes])])
220
221  case $host/$CC in
222  *-*-cygwin*/gcc*-mno-cygwin*|*-*-mingw*)
223    # old mingw systems require "-dll" to link a DLL, while more recent ones
224    # require "-mdll"
225    SAVE_CFLAGS="$CFLAGS"
226    CFLAGS="$CFLAGS -mdll"
227    AC_CACHE_CHECK([how to link DLLs], lt_cv_cc_dll_switch,
228      [AC_TRY_LINK([], [], [lt_cv_cc_dll_switch=-mdll],[lt_cv_cc_dll_switch=-dll])])
229    CFLAGS="$SAVE_CFLAGS" ;;
230  *-*-cygwin* | *-*-pw32*)
231    # cygwin systems need to pass --dll to the linker, and not link
232    # crt.o which will require a WinMain@16 definition.
233    lt_cv_cc_dll_switch="-Wl,--dll -nostartfiles" ;;
234  esac
235  ;;
236  ])
237esac
238])
239
240# AC_LIBTOOL_DLOPEN - enable checks for dlopen support
241AC_DEFUN([AC_LIBTOOL_DLOPEN], [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
242
243# AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
244AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
245
246# AC_ENABLE_SHARED - implement the --enable-shared flag
247# Usage: AC_ENABLE_SHARED[(DEFAULT)]
248#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
249#   `yes'.
250AC_DEFUN([AC_ENABLE_SHARED],
251[define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
252AC_ARG_ENABLE(shared,
253changequote(<<, >>)dnl
254<<  --enable-shared[=PKGS]  build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
255changequote([, ])dnl
256[p=${PACKAGE-default}
257case $enableval in
258yes) enable_shared=yes ;;
259no) enable_shared=no ;;
260*)
261  enable_shared=no
262  # Look at the argument we got.  We use all the common list separators.
263  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
264  for pkg in $enableval; do
265    if test "X$pkg" = "X$p"; then
266      enable_shared=yes
267    fi
268  done
269  IFS="$ac_save_ifs"
270  ;;
271esac],
272enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
273])
274
275# AC_DISABLE_SHARED - set the default shared flag to --disable-shared
276AC_DEFUN([AC_DISABLE_SHARED], [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
277AC_ENABLE_SHARED(no)])
278
279# AC_ENABLE_STATIC - implement the --enable-static flag
280# Usage: AC_ENABLE_STATIC[(DEFAULT)]
281#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
282#   `yes'.
283AC_DEFUN([AC_ENABLE_STATIC],
284[define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
285AC_ARG_ENABLE(static,
286changequote(<<, >>)dnl
287<<  --enable-static[=PKGS]  build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
288changequote([, ])dnl
289[p=${PACKAGE-default}
290case $enableval in
291yes) enable_static=yes ;;
292no) enable_static=no ;;
293*)
294  enable_static=no
295  # Look at the argument we got.  We use all the common list separators.
296  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
297  for pkg in $enableval; do
298    if test "X$pkg" = "X$p"; then
299      enable_static=yes
300    fi
301  done
302  IFS="$ac_save_ifs"
303  ;;
304esac],
305enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
306])
307
308# AC_DISABLE_STATIC - set the default static flag to --disable-static
309AC_DEFUN([AC_DISABLE_STATIC],
310[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
311AC_ENABLE_STATIC(no)])
312
313
314# AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
315# Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
316#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
317#   `yes'.
318AC_DEFUN([AC_ENABLE_FAST_INSTALL],
319[define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
320AC_ARG_ENABLE(fast-install,
321changequote(<<, >>)dnl
322<<  --enable-fast-install[=PKGS]  optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
323changequote([, ])dnl
324[p=${PACKAGE-default}
325case $enableval in
326yes) enable_fast_install=yes ;;
327no) enable_fast_install=no ;;
328*)
329  enable_fast_install=no
330  # Look at the argument we got.  We use all the common list separators.
331  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
332  for pkg in $enableval; do
333    if test "X$pkg" = "X$p"; then
334      enable_fast_install=yes
335    fi
336  done
337  IFS="$ac_save_ifs"
338  ;;
339esac],
340enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
341])
342
343# AC_DISABLE_FAST_INSTALL - set the default to --disable-fast-install
344AC_DEFUN([AC_DISABLE_FAST_INSTALL],
345[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
346AC_ENABLE_FAST_INSTALL(no)])
347
348# AC_LIBTOOL_PICMODE - implement the --with-pic flag
349# Usage: AC_LIBTOOL_PICMODE[(MODE)]
350#   Where MODE is either `yes' or `no'.  If omitted, it defaults to
351#   `both'.
352AC_DEFUN([AC_LIBTOOL_PICMODE],
353[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
354pic_mode=ifelse($#,1,$1,default)])
355
356
357# AC_PATH_TOOL_PREFIX - find a file program which can recognise shared library
358AC_DEFUN([AC_PATH_TOOL_PREFIX],
359[AC_MSG_CHECKING([for $1])
360AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
361[case $MAGIC_CMD in
362  /*)
363  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
364  ;;
365  ?:/*)
366  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a dos path.
367  ;;
368  *)
369  ac_save_MAGIC_CMD="$MAGIC_CMD"
370  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS=":"
371dnl $ac_dummy forces splitting on constant user-supplied paths.
372dnl POSIX.2 word splitting is done only on the output of word expansions,
373dnl not every word.  This closes a longstanding sh security hole.
374  ac_dummy="ifelse([$2], , $PATH, [$2])"
375  for ac_dir in $ac_dummy; do
376    test -z "$ac_dir" && ac_dir=.
377    if test -f $ac_dir/$1; then
378      lt_cv_path_MAGIC_CMD="$ac_dir/$1"
379      if test -n "$file_magic_test_file"; then
380	case $deplibs_check_method in
381	"file_magic "*)
382	  file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"
383	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
384	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
385	    egrep "$file_magic_regex" > /dev/null; then
386	    :
387	  else
388	    cat <<EOF 1>&2
389
390*** Warning: the command libtool uses to detect shared libraries,
391*** $file_magic_cmd, produces output that libtool cannot recognize.
392*** The result is that libtool may fail to recognize shared libraries
393*** as such.  This will affect the creation of libtool libraries that
394*** depend on shared libraries, but programs linked with such libtool
395*** libraries will work regardless of this problem.  Nevertheless, you
396*** may want to report the problem to your system manager and/or to
397*** bug-libtool@gnu.org
398
399EOF
400	  fi ;;
401	esac
402      fi
403      break
404    fi
405  done
406  IFS="$ac_save_ifs"
407  MAGIC_CMD="$ac_save_MAGIC_CMD"
408  ;;
409esac])
410MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
411if test -n "$MAGIC_CMD"; then
412  AC_MSG_RESULT($MAGIC_CMD)
413else
414  AC_MSG_RESULT(no)
415fi
416])
417
418
419# AC_PATH_MAGIC - find a file program which can recognise a shared library
420AC_DEFUN([AC_PATH_MAGIC],
421[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])dnl
422AC_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin:$PATH)
423if test -z "$lt_cv_path_MAGIC_CMD"; then
424  if test -n "$ac_tool_prefix"; then
425    AC_PATH_TOOL_PREFIX(file, /usr/bin:$PATH)
426  else
427    MAGIC_CMD=:
428  fi
429fi
430])
431
432
433# AC_PROG_LD - find the path to the GNU or non-GNU linker
434AC_DEFUN([AC_PROG_LD],
435[AC_ARG_WITH(gnu-ld,
436[  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
437test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
438AC_REQUIRE([AC_PROG_CC])dnl
439AC_REQUIRE([AC_CANONICAL_HOST])dnl
440AC_REQUIRE([AC_CANONICAL_BUILD])dnl
441ac_prog=ld
442if test "$GCC" = yes; then
443  # Check if gcc -print-prog-name=ld gives a path.
444  AC_MSG_CHECKING([for ld used by GCC])
445  case $host in
446  *-*-mingw*)
447    # gcc leaves a trailing carriage return which upsets mingw
448    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
449  *)
450    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
451  esac
452  case $ac_prog in
453    # Accept absolute paths.
454    [[\\/]* | [A-Za-z]:[\\/]*)]
455      re_direlt=['/[^/][^/]*/\.\./']
456      # Canonicalize the path of ld
457      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
458      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
459	ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
460      done
461      test -z "$LD" && LD="$ac_prog"
462      ;;
463  "")
464    # If it fails, then pretend we aren't using GCC.
465    ac_prog=ld
466    ;;
467  *)
468    # If it is relative, then search for the first ld in PATH.
469    with_gnu_ld=unknown
470    ;;
471  esac
472elif test "$with_gnu_ld" = yes; then
473  AC_MSG_CHECKING([for GNU ld])
474else
475  AC_MSG_CHECKING([for non-GNU ld])
476fi
477AC_CACHE_VAL(lt_cv_path_LD,
478[if test -z "$LD"; then
479  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
480  for ac_dir in $PATH; do
481    test -z "$ac_dir" && ac_dir=.
482    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
483      lt_cv_path_LD="$ac_dir/$ac_prog"
484      # Check to see if the program is GNU ld.  I'd rather use --version,
485      # but apparently some GNU ld's only accept -v.
486      # Break only if it was the GNU/non-GNU ld that we prefer.
487      if "$lt_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
488	test "$with_gnu_ld" != no && break
489      else
490	test "$with_gnu_ld" != yes && break
491      fi
492    fi
493  done
494  IFS="$ac_save_ifs"
495else
496  lt_cv_path_LD="$LD" # Let the user override the test with a path.
497fi])
498LD="$lt_cv_path_LD"
499if test -n "$LD"; then
500  AC_MSG_RESULT($LD)
501else
502  AC_MSG_RESULT(no)
503fi
504test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
505AC_PROG_LD_GNU
506])
507
508AC_DEFUN([AC_PROG_LD_GNU],
509[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
510[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
511if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
512  lt_cv_prog_gnu_ld=yes
513else
514  lt_cv_prog_gnu_ld=no
515fi])
516with_gnu_ld=$lt_cv_prog_gnu_ld
517])
518
519# AC_PROG_LD_RELOAD_FLAG - find reload flag for linker
520#   -- PORTME Some linkers may need a different reload flag.
521AC_DEFUN([AC_PROG_LD_RELOAD_FLAG],
522[AC_CACHE_CHECK([for $LD option to reload object files], lt_cv_ld_reload_flag,
523[lt_cv_ld_reload_flag='-r'])
524reload_flag=$lt_cv_ld_reload_flag
525test -n "$reload_flag" && reload_flag=" $reload_flag"
526])
527
528# AC_DEPLIBS_CHECK_METHOD - how to check for library dependencies
529#  -- PORTME fill in with the dynamic library characteristics
530AC_DEFUN([AC_DEPLIBS_CHECK_METHOD],
531[AC_CACHE_CHECK([how to recognise dependant libraries],
532lt_cv_deplibs_check_method,
533[lt_cv_file_magic_cmd='$MAGIC_CMD'
534lt_cv_file_magic_test_file=
535lt_cv_deplibs_check_method='unknown'
536# Need to set the preceding variable on all platforms that support
537# interlibrary dependencies.
538# 'none' -- dependencies not supported.
539# `unknown' -- same as none, but documents that we really don't know.
540# 'pass_all' -- all dependencies passed with no checks.
541# 'test_compile' -- check by making test program.
542# 'file_magic [regex]' -- check by looking for files in library path
543# which responds to the $file_magic_cmd with a given egrep regex.
544# If you have `file' or equivalent on your system and you're not sure
545# whether `pass_all' will *always* work, you probably want this one.
546
547case $host_os in
548aix*)
549  lt_cv_deplibs_check_method=pass_all
550  ;;
551
552beos*)
553  lt_cv_deplibs_check_method=pass_all
554  ;;
555
556bsdi4*)
557  lt_cv_deplibs_check_method=['file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)']
558  lt_cv_file_magic_cmd='/usr/bin/file -L'
559  lt_cv_file_magic_test_file=/shlib/libc.so
560  ;;
561
562cygwin* | mingw* |pw32*)
563  lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
564  lt_cv_file_magic_cmd='$OBJDUMP -f'
565  ;;
566
567darwin* | rhapsody*)
568  lt_cv_deplibs_check_method='file_magic Mach-O dynamically linked shared library'
569  lt_cv_file_magic_cmd='/usr/bin/file -L'
570  case "$host_os" in
571  rhapsody* | darwin1.[012])
572    lt_cv_file_magic_test_file='/System/Library/Frameworks/System.framework/System'
573    ;;
574  *) # Darwin 1.3 on
575    lt_cv_file_magic_test_file='/usr/lib/libSystem.dylib'
576    ;;
577  esac
578  ;;
579
580freebsd* )
581  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
582    case $host_cpu in
583    i*86 )
584      # Not sure whether the presence of OpenBSD here was a mistake.
585      # Let's accept both of them until this is cleared up.
586      lt_cv_deplibs_check_method=['file_magic (FreeBSD|OpenBSD)/i[3-9]86 (compact )?demand paged shared library']
587      lt_cv_file_magic_cmd=/usr/bin/file
588      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
589      ;;
590    esac
591  else
592    lt_cv_deplibs_check_method=pass_all
593  fi
594  ;;
595
596gnu*)
597  lt_cv_deplibs_check_method=pass_all
598  ;;
599
600hpux10.20*|hpux11*)
601  case $host_cpu in
602  hppa*)
603    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library']
604    lt_cv_file_magic_cmd=/usr/bin/file
605    lt_cv_file_magic_test_file=/usr/lib/libc.sl
606    ;;
607  ia64*)
608    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64']
609    lt_cv_file_magic_cmd=/usr/bin/file
610    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
611    ;;
612  esac
613  ;;
614
615irix5* | irix6*)
616  case $host_os in
617  irix5*)
618    # this will be overridden with pass_all, but let us keep it just in case
619    lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"
620    ;;
621  *)
622    case $LD in
623    *-32|*"-32 ") libmagic=32-bit;;
624    *-n32|*"-n32 ") libmagic=N32;;
625    *-64|*"-64 ") libmagic=64-bit;;
626    *) libmagic=never-match;;
627    esac
628    # this will be overridden with pass_all, but let us keep it just in case
629    lt_cv_deplibs_check_method=["file_magic ELF ${libmagic} MSB mips-[1234] dynamic lib MIPS - version 1"]
630    ;;
631  esac
632  lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*`
633  lt_cv_deplibs_check_method=pass_all
634  ;;
635
636# This must be Linux ELF.
637linux-gnu*)
638  case $host_cpu in
639  alpha* | mips* | hppa* | i*86 | powerpc* | sparc* | ia64* )
640    lt_cv_deplibs_check_method=pass_all ;;
641  *)
642    # glibc up to 2.1.1 does not perform some relocations on ARM
643    lt_cv_deplibs_check_method=['file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'] ;;
644  esac
645  lt_cv_file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
646  ;;
647
648netbsd*)
649  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
650    [lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so\.[0-9]+\.[0-9]+$']
651  else
652    [lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so$']
653  fi
654  ;;
655
656newsos6)
657  [lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)']
658  lt_cv_file_magic_cmd=/usr/bin/file
659  lt_cv_file_magic_test_file=/usr/lib/libnls.so
660  ;;
661
662osf3* | osf4* | osf5*)
663  # this will be overridden with pass_all, but let us keep it just in case
664  lt_cv_deplibs_check_method='file_magic COFF format alpha shared library'
665  lt_cv_file_magic_test_file=/shlib/libc.so
666  lt_cv_deplibs_check_method=pass_all
667  ;;
668
669sco3.2v5*)
670  lt_cv_deplibs_check_method=pass_all
671  ;;
672
673solaris*)
674  lt_cv_deplibs_check_method=pass_all
675  lt_cv_file_magic_test_file=/lib/libc.so
676  ;;
677
678[sysv5uw[78]* | sysv4*uw2*)]
679  lt_cv_deplibs_check_method=pass_all
680  ;;
681
682sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
683  case $host_vendor in
684  ncr)
685    lt_cv_deplibs_check_method=pass_all
686    ;;
687  motorola)
688    lt_cv_deplibs_check_method=['file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]']
689    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
690    ;;
691  esac
692  ;;
693esac
694])
695file_magic_cmd=$lt_cv_file_magic_cmd
696deplibs_check_method=$lt_cv_deplibs_check_method
697])
698
699
700# AC_PROG_NM - find the path to a BSD-compatible name lister
701AC_DEFUN([AC_PROG_NM],
702[AC_MSG_CHECKING([for BSD-compatible nm])
703AC_CACHE_VAL(lt_cv_path_NM,
704[if test -n "$NM"; then
705  # Let the user override the test.
706  lt_cv_path_NM="$NM"
707else
708  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
709  for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
710    test -z "$ac_dir" && ac_dir=.
711    tmp_nm=$ac_dir/${ac_tool_prefix}nm
712    if test -f $tmp_nm || test -f $tmp_nm$ac_exeext ; then
713      # Check to see if the nm accepts a BSD-compat flag.
714      # Adding the `sed 1q' prevents false positives on HP-UX, which says:
715      #   nm: unknown option "B" ignored
716      # Tru64's nm complains that /dev/null is an invalid object file
717      if ($tmp_nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep '(/dev/null|Invalid file or object type)' >/dev/null; then
718	lt_cv_path_NM="$tmp_nm -B"
719	break
720      elif ($tmp_nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
721	lt_cv_path_NM="$tmp_nm -p"
722	break
723      else
724	lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
725	continue # so that we can try to find one that supports BSD flags
726      fi
727    fi
728  done
729  IFS="$ac_save_ifs"
730  test -z "$lt_cv_path_NM" && lt_cv_path_NM=nm
731fi])
732NM="$lt_cv_path_NM"
733AC_MSG_RESULT([$NM])
734])
735
736# AC_CHECK_LIBM - check for math library
737AC_DEFUN([AC_CHECK_LIBM],
738[AC_REQUIRE([AC_CANONICAL_HOST])dnl
739LIBM=
740case $host in
741*-*-beos* | *-*-cygwin* | *-*-pw32*)
742  # These system don't have libm
743  ;;
744*-ncr-sysv4.3*)
745  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
746  AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
747  ;;
748*)
749  AC_CHECK_LIB(m, main, LIBM="-lm")
750  ;;
751esac
752])
753
754# AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
755# the libltdl convenience library and INCLTDL to the include flags for
756# the libltdl header and adds --enable-ltdl-convenience to the
757# configure arguments.  Note that LIBLTDL and INCLTDL are not
758# AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called.  If DIR is not
759# provided, it is assumed to be `libltdl'.  LIBLTDL will be prefixed
760# with '${top_builddir}/' and INCLTDL will be prefixed with
761# '${top_srcdir}/' (note the single quotes!).  If your package is not
762# flat and you're not using automake, define top_builddir and
763# top_srcdir appropriately in the Makefiles.
764AC_DEFUN([AC_LIBLTDL_CONVENIENCE],
765[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
766  case $enable_ltdl_convenience in
767  no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
768  "") enable_ltdl_convenience=yes
769      ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
770  esac
771  LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdlc.la
772  INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
773])
774
775# AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
776# the libltdl installable library and INCLTDL to the include flags for
777# the libltdl header and adds --enable-ltdl-install to the configure
778# arguments.  Note that LIBLTDL and INCLTDL are not AC_SUBSTed, nor is
779# AC_CONFIG_SUBDIRS called.  If DIR is not provided and an installed
780# libltdl is not found, it is assumed to be `libltdl'.  LIBLTDL will
781# be prefixed with '${top_builddir}/' and INCLTDL will be prefixed
782# with '${top_srcdir}/' (note the single quotes!).  If your package is
783# not flat and you're not using automake, define top_builddir and
784# top_srcdir appropriately in the Makefiles.
785# In the future, this macro may have to be called after AC_PROG_LIBTOOL.
786AC_DEFUN([AC_LIBLTDL_INSTALLABLE],
787[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
788  AC_CHECK_LIB(ltdl, main,
789  [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
790  [if test x"$enable_ltdl_install" = xno; then
791     AC_MSG_WARN([libltdl not installed, but installation disabled])
792   else
793     enable_ltdl_install=yes
794   fi
795  ])
796  if test x"$enable_ltdl_install" = x"yes"; then
797    ac_configure_args="$ac_configure_args --enable-ltdl-install"
798    LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdl.la
799    INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
800  else
801    ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
802    LIBLTDL="-lltdl"
803    INCLTDL=
804  fi
805])
806
807# If this macro is not defined by Autoconf, define it here.
808ifdef([AC_PROVIDE_IFELSE],
809      [],
810      [define([AC_PROVIDE_IFELSE],
811              [ifdef([AC_PROVIDE_$1],
812                     [$2], [$3])])])
813
814# AC_LIBTOOL_CXX - enable support for C++ libraries
815AC_DEFUN([AC_LIBTOOL_CXX], [AC_REQUIRE([_AC_LIBTOOL_CXX])])
816
817AC_DEFUN([_AC_LIBTOOL_CXX],
818[AC_REQUIRE([AC_PROG_CXX])
819AC_REQUIRE([AC_PROG_CXXCPP])
820LIBTOOL_DEPS=$LIBTOOL_DEPS" $ac_aux_dir/ltcf-cxx.sh"
821lt_save_CC="$CC"
822lt_save_CFLAGS="$CFLAGS"
823dnl Make sure LTCC is set to the C compiler, i.e. set LTCC before CC
824dnl is set to the C++ compiler.
825AR="$AR" LTCC="$CC" CC="$CXX" CXX="$CXX" CFLAGS="$CXXFLAGS" CPPFLAGS="$CPPFLAGS" \
826MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
827LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \
828AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \
829objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \
830deplibs_check_method="$deplibs_check_method" \
831file_magic_cmd="$file_magic_cmd" \
832${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig -o libtool $libtool_flags \
833--build="$build" --add-tag=CXX $ac_aux_dir/ltcf-cxx.sh $host \
834|| AC_MSG_ERROR([libtool tag configuration failed])
835CC="$lt_save_CC"
836CFLAGS="$lt_save_CFLAGS"
837
838# Redirect the config.log output again, so that the ltconfig log is not
839# clobbered by the next message.
840exec 5>>./config.log
841])
842
843# AC_LIBTOOL_GCJ - enable support for GCJ libraries
844AC_DEFUN([AC_LIBTOOL_GCJ],[AC_REQUIRE([_AC_LIBTOOL_GCJ])])
845
846AC_DEFUN([_AC_LIBTOOL_GCJ],
847[AC_REQUIRE([AC_PROG_LIBTOOL])
848AC_PROVIDE_IFELSE([AC_PROG_GCJ],[],
849  [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],[],
850    [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],[],
851      [ifdef([AC_PROG_GCJ],[AC_REQUIRE([AC_PROG_GCJ])],
852         [ifdef([A][M_PROG_GCJ],[AC_REQUIRE([A][M_PROG_GCJ])],
853           [AC_REQUIRE([A][C_PROG_GCJ_OR_A][M_PROG_GCJ])])])])])])
854LIBTOOL_DEPS=$LIBTOOL_DEPS" $ac_aux_dir/ltcf-gcj.sh"
855lt_save_CC="$CC"
856lt_save_CFLAGS="$CFLAGS"
857dnl Make sure LTCC is set to the C compiler, i.e. set LTCC before CC
858dnl is set to the C++ compiler.
859AR="$AR" LTCC="$CC" CC="$GCJ" CFLAGS="$GCJFLAGS" CPPFLAGS="$CPPFLAGS" \
860MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
861LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \
862AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \
863objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \
864deplibs_check_method="$deplibs_check_method" \
865file_magic_cmd="$file_magic_cmd" \
866${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig -o libtool $libtool_flags \
867--build="$build" --add-tag=GCJ $ac_aux_dir/ltcf-gcj.sh $host \
868|| AC_MSG_ERROR([libtool tag configuration failed])
869CC="$lt_save_CC"
870CFLAGS="$lt_save_CFLAGS"
871
872# Redirect the config.log output again, so that the ltconfig log is not
873# clobbered by the next message.
874exec 5>>./config.log
875])
876
877dnl old names
878AC_DEFUN([AM_PROG_LIBTOOL],   [AC_PROG_LIBTOOL])
879AC_DEFUN([AM_ENABLE_SHARED],  [AC_ENABLE_SHARED($@)])
880AC_DEFUN([AM_ENABLE_STATIC],  [AC_ENABLE_STATIC($@)])
881AC_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
882AC_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
883AC_DEFUN([AM_PROG_LD],        [AC_PROG_LD])
884AC_DEFUN([AM_PROG_NM],        [AC_PROG_NM])
885
886dnl This is just to silence aclocal about the macro not being used
887ifelse([AC_DISABLE_FAST_INSTALL])dnl
888
889AC_DEFUN([LT_AC_PROG_GCJ],
890[AC_CHECK_TOOL(GCJ, gcj, no)
891  test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
892  AC_SUBST(GCJFLAGS)
893])
894