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