xref: /freebsd/contrib/file/aclocal.m4 (revision f0cfa1b168014f56c02b83e5f28412cc5f78d117)
1# generated automatically by aclocal 1.15 -*- Autoconf -*-
2
3# Copyright (C) 1996-2014 Free Software Foundation, Inc.
4
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12# PARTICULAR PURPOSE.
13
14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
15m4_ifndef([AC_AUTOCONF_VERSION],
16  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
18[m4_warning([this file was generated for autoconf 2.69.
19You have another version of autoconf.  It may work, but is not guaranteed to.
20If you have problems, you may need to regenerate the build system entirely.
21To do so, use the procedure documented by the package, typically 'autoreconf'.])])
22
23# visibility.m4 serial 5 (gettext-0.18.2)
24dnl Copyright (C) 2005, 2008, 2010-2016 Free Software Foundation, Inc.
25dnl This file is free software; the Free Software Foundation
26dnl gives unlimited permission to copy and/or distribute it,
27dnl with or without modifications, as long as this notice is preserved.
28
29dnl From Bruno Haible.
30
31dnl Tests whether the compiler supports the command-line option
32dnl -fvisibility=hidden and the function and variable attributes
33dnl __attribute__((__visibility__("hidden"))) and
34dnl __attribute__((__visibility__("default"))).
35dnl Does *not* test for __visibility__("protected") - which has tricky
36dnl semantics (see the 'vismain' test in glibc) and does not exist e.g. on
37dnl Mac OS X.
38dnl Does *not* test for __visibility__("internal") - which has processor
39dnl dependent semantics.
40dnl Does *not* test for #pragma GCC visibility push(hidden) - which is
41dnl "really only recommended for legacy code".
42dnl Set the variable CFLAG_VISIBILITY.
43dnl Defines and sets the variable HAVE_VISIBILITY.
44
45AC_DEFUN([gl_VISIBILITY],
46[
47  AC_REQUIRE([AC_PROG_CC])
48  CFLAG_VISIBILITY=
49  HAVE_VISIBILITY=0
50  if test -n "$GCC"; then
51    dnl First, check whether -Werror can be added to the command line, or
52    dnl whether it leads to an error because of some other option that the
53    dnl user has put into $CC $CFLAGS $CPPFLAGS.
54    AC_MSG_CHECKING([whether the -Werror option is usable])
55    AC_CACHE_VAL([gl_cv_cc_vis_werror], [
56      gl_save_CFLAGS="$CFLAGS"
57      CFLAGS="$CFLAGS -Werror"
58      AC_COMPILE_IFELSE(
59        [AC_LANG_PROGRAM([[]], [[]])],
60        [gl_cv_cc_vis_werror=yes],
61        [gl_cv_cc_vis_werror=no])
62      CFLAGS="$gl_save_CFLAGS"])
63    AC_MSG_RESULT([$gl_cv_cc_vis_werror])
64    dnl Now check whether visibility declarations are supported.
65    AC_MSG_CHECKING([for simple visibility declarations])
66    AC_CACHE_VAL([gl_cv_cc_visibility], [
67      gl_save_CFLAGS="$CFLAGS"
68      CFLAGS="$CFLAGS -fvisibility=hidden"
69      dnl We use the option -Werror and a function dummyfunc, because on some
70      dnl platforms (Cygwin 1.7) the use of -fvisibility triggers a warning
71      dnl "visibility attribute not supported in this configuration; ignored"
72      dnl at the first function definition in every compilation unit, and we
73      dnl don't want to use the option in this case.
74      if test $gl_cv_cc_vis_werror = yes; then
75        CFLAGS="$CFLAGS -Werror"
76      fi
77      AC_COMPILE_IFELSE(
78        [AC_LANG_PROGRAM(
79           [[extern __attribute__((__visibility__("hidden"))) int hiddenvar;
80             extern __attribute__((__visibility__("default"))) int exportedvar;
81             extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void);
82             extern __attribute__((__visibility__("default"))) int exportedfunc (void);
83             void dummyfunc (void) {}
84           ]],
85           [[]])],
86        [gl_cv_cc_visibility=yes],
87        [gl_cv_cc_visibility=no])
88      CFLAGS="$gl_save_CFLAGS"])
89    AC_MSG_RESULT([$gl_cv_cc_visibility])
90    if test $gl_cv_cc_visibility = yes; then
91      CFLAG_VISIBILITY="-fvisibility=hidden"
92      HAVE_VISIBILITY=1
93    fi
94  fi
95  AC_SUBST([CFLAG_VISIBILITY])
96  AC_SUBST([HAVE_VISIBILITY])
97  AC_DEFINE_UNQUOTED([HAVE_VISIBILITY], [$HAVE_VISIBILITY],
98    [Define to 1 or 0, depending whether the compiler supports simple visibility declarations.])
99])
100
101# Copyright (C) 2002-2014 Free Software Foundation, Inc.
102#
103# This file is free software; the Free Software Foundation
104# gives unlimited permission to copy and/or distribute it,
105# with or without modifications, as long as this notice is preserved.
106
107# AM_AUTOMAKE_VERSION(VERSION)
108# ----------------------------
109# Automake X.Y traces this macro to ensure aclocal.m4 has been
110# generated from the m4 files accompanying Automake X.Y.
111# (This private macro should not be called outside this file.)
112AC_DEFUN([AM_AUTOMAKE_VERSION],
113[am__api_version='1.15'
114dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
115dnl require some minimum version.  Point them to the right macro.
116m4_if([$1], [1.15], [],
117      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
118])
119
120# _AM_AUTOCONF_VERSION(VERSION)
121# -----------------------------
122# aclocal traces this macro to find the Autoconf version.
123# This is a private macro too.  Using m4_define simplifies
124# the logic in aclocal, which can simply ignore this definition.
125m4_define([_AM_AUTOCONF_VERSION], [])
126
127# AM_SET_CURRENT_AUTOMAKE_VERSION
128# -------------------------------
129# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
130# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
131AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
132[AM_AUTOMAKE_VERSION([1.15])dnl
133m4_ifndef([AC_AUTOCONF_VERSION],
134  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
135_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
136
137# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
138
139# Copyright (C) 2001-2014 Free Software Foundation, Inc.
140#
141# This file is free software; the Free Software Foundation
142# gives unlimited permission to copy and/or distribute it,
143# with or without modifications, as long as this notice is preserved.
144
145# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
146# $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
147# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
148#
149# Of course, Automake must honor this variable whenever it calls a
150# tool from the auxiliary directory.  The problem is that $srcdir (and
151# therefore $ac_aux_dir as well) can be either absolute or relative,
152# depending on how configure is run.  This is pretty annoying, since
153# it makes $ac_aux_dir quite unusable in subdirectories: in the top
154# source directory, any form will work fine, but in subdirectories a
155# relative path needs to be adjusted first.
156#
157# $ac_aux_dir/missing
158#    fails when called from a subdirectory if $ac_aux_dir is relative
159# $top_srcdir/$ac_aux_dir/missing
160#    fails if $ac_aux_dir is absolute,
161#    fails when called from a subdirectory in a VPATH build with
162#          a relative $ac_aux_dir
163#
164# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
165# are both prefixed by $srcdir.  In an in-source build this is usually
166# harmless because $srcdir is '.', but things will broke when you
167# start a VPATH build or use an absolute $srcdir.
168#
169# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
170# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
171#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
172# and then we would define $MISSING as
173#   MISSING="\${SHELL} $am_aux_dir/missing"
174# This will work as long as MISSING is not called from configure, because
175# unfortunately $(top_srcdir) has no meaning in configure.
176# However there are other variables, like CC, which are often used in
177# configure, and could therefore not use this "fixed" $ac_aux_dir.
178#
179# Another solution, used here, is to always expand $ac_aux_dir to an
180# absolute PATH.  The drawback is that using absolute paths prevent a
181# configured tree to be moved without reconfiguration.
182
183AC_DEFUN([AM_AUX_DIR_EXPAND],
184[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
185# Expand $ac_aux_dir to an absolute path.
186am_aux_dir=`cd "$ac_aux_dir" && pwd`
187])
188
189# AM_CONDITIONAL                                            -*- Autoconf -*-
190
191# Copyright (C) 1997-2014 Free Software Foundation, Inc.
192#
193# This file is free software; the Free Software Foundation
194# gives unlimited permission to copy and/or distribute it,
195# with or without modifications, as long as this notice is preserved.
196
197# AM_CONDITIONAL(NAME, SHELL-CONDITION)
198# -------------------------------------
199# Define a conditional.
200AC_DEFUN([AM_CONDITIONAL],
201[AC_PREREQ([2.52])dnl
202 m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
203       [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
204AC_SUBST([$1_TRUE])dnl
205AC_SUBST([$1_FALSE])dnl
206_AM_SUBST_NOTMAKE([$1_TRUE])dnl
207_AM_SUBST_NOTMAKE([$1_FALSE])dnl
208m4_define([_AM_COND_VALUE_$1], [$2])dnl
209if $2; then
210  $1_TRUE=
211  $1_FALSE='#'
212else
213  $1_TRUE='#'
214  $1_FALSE=
215fi
216AC_CONFIG_COMMANDS_PRE(
217[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
218  AC_MSG_ERROR([[conditional "$1" was never defined.
219Usually this means the macro was only invoked conditionally.]])
220fi])])
221
222# Copyright (C) 1999-2014 Free Software Foundation, Inc.
223#
224# This file is free software; the Free Software Foundation
225# gives unlimited permission to copy and/or distribute it,
226# with or without modifications, as long as this notice is preserved.
227
228
229# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
230# written in clear, in which case automake, when reading aclocal.m4,
231# will think it sees a *use*, and therefore will trigger all it's
232# C support machinery.  Also note that it means that autoscan, seeing
233# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
234
235
236# _AM_DEPENDENCIES(NAME)
237# ----------------------
238# See how the compiler implements dependency checking.
239# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
240# We try a few techniques and use that to set a single cache variable.
241#
242# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
243# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
244# dependency, and given that the user is not expected to run this macro,
245# just rely on AC_PROG_CC.
246AC_DEFUN([_AM_DEPENDENCIES],
247[AC_REQUIRE([AM_SET_DEPDIR])dnl
248AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
249AC_REQUIRE([AM_MAKE_INCLUDE])dnl
250AC_REQUIRE([AM_DEP_TRACK])dnl
251
252m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
253      [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
254      [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
255      [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
256      [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
257      [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
258                    [depcc="$$1"   am_compiler_list=])
259
260AC_CACHE_CHECK([dependency style of $depcc],
261               [am_cv_$1_dependencies_compiler_type],
262[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
263  # We make a subdir and do the tests there.  Otherwise we can end up
264  # making bogus files that we don't know about and never remove.  For
265  # instance it was reported that on HP-UX the gcc test will end up
266  # making a dummy file named 'D' -- because '-MD' means "put the output
267  # in D".
268  rm -rf conftest.dir
269  mkdir conftest.dir
270  # Copy depcomp to subdir because otherwise we won't find it if we're
271  # using a relative directory.
272  cp "$am_depcomp" conftest.dir
273  cd conftest.dir
274  # We will build objects and dependencies in a subdirectory because
275  # it helps to detect inapplicable dependency modes.  For instance
276  # both Tru64's cc and ICC support -MD to output dependencies as a
277  # side effect of compilation, but ICC will put the dependencies in
278  # the current directory while Tru64 will put them in the object
279  # directory.
280  mkdir sub
281
282  am_cv_$1_dependencies_compiler_type=none
283  if test "$am_compiler_list" = ""; then
284     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
285  fi
286  am__universal=false
287  m4_case([$1], [CC],
288    [case " $depcc " in #(
289     *\ -arch\ *\ -arch\ *) am__universal=true ;;
290     esac],
291    [CXX],
292    [case " $depcc " in #(
293     *\ -arch\ *\ -arch\ *) am__universal=true ;;
294     esac])
295
296  for depmode in $am_compiler_list; do
297    # Setup a source with many dependencies, because some compilers
298    # like to wrap large dependency lists on column 80 (with \), and
299    # we should not choose a depcomp mode which is confused by this.
300    #
301    # We need to recreate these files for each test, as the compiler may
302    # overwrite some of them when testing with obscure command lines.
303    # This happens at least with the AIX C compiler.
304    : > sub/conftest.c
305    for i in 1 2 3 4 5 6; do
306      echo '#include "conftst'$i'.h"' >> sub/conftest.c
307      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
308      # Solaris 10 /bin/sh.
309      echo '/* dummy */' > sub/conftst$i.h
310    done
311    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
312
313    # We check with '-c' and '-o' for the sake of the "dashmstdout"
314    # mode.  It turns out that the SunPro C++ compiler does not properly
315    # handle '-M -o', and we need to detect this.  Also, some Intel
316    # versions had trouble with output in subdirs.
317    am__obj=sub/conftest.${OBJEXT-o}
318    am__minus_obj="-o $am__obj"
319    case $depmode in
320    gcc)
321      # This depmode causes a compiler race in universal mode.
322      test "$am__universal" = false || continue
323      ;;
324    nosideeffect)
325      # After this tag, mechanisms are not by side-effect, so they'll
326      # only be used when explicitly requested.
327      if test "x$enable_dependency_tracking" = xyes; then
328	continue
329      else
330	break
331      fi
332      ;;
333    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
334      # This compiler won't grok '-c -o', but also, the minuso test has
335      # not run yet.  These depmodes are late enough in the game, and
336      # so weak that their functioning should not be impacted.
337      am__obj=conftest.${OBJEXT-o}
338      am__minus_obj=
339      ;;
340    none) break ;;
341    esac
342    if depmode=$depmode \
343       source=sub/conftest.c object=$am__obj \
344       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
345       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
346         >/dev/null 2>conftest.err &&
347       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
348       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
349       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
350       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
351      # icc doesn't choke on unknown options, it will just issue warnings
352      # or remarks (even with -Werror).  So we grep stderr for any message
353      # that says an option was ignored or not supported.
354      # When given -MP, icc 7.0 and 7.1 complain thusly:
355      #   icc: Command line warning: ignoring option '-M'; no argument required
356      # The diagnosis changed in icc 8.0:
357      #   icc: Command line remark: option '-MP' not supported
358      if (grep 'ignoring option' conftest.err ||
359          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
360        am_cv_$1_dependencies_compiler_type=$depmode
361        break
362      fi
363    fi
364  done
365
366  cd ..
367  rm -rf conftest.dir
368else
369  am_cv_$1_dependencies_compiler_type=none
370fi
371])
372AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
373AM_CONDITIONAL([am__fastdep$1], [
374  test "x$enable_dependency_tracking" != xno \
375  && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
376])
377
378
379# AM_SET_DEPDIR
380# -------------
381# Choose a directory name for dependency files.
382# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
383AC_DEFUN([AM_SET_DEPDIR],
384[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
385AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
386])
387
388
389# AM_DEP_TRACK
390# ------------
391AC_DEFUN([AM_DEP_TRACK],
392[AC_ARG_ENABLE([dependency-tracking], [dnl
393AS_HELP_STRING(
394  [--enable-dependency-tracking],
395  [do not reject slow dependency extractors])
396AS_HELP_STRING(
397  [--disable-dependency-tracking],
398  [speeds up one-time build])])
399if test "x$enable_dependency_tracking" != xno; then
400  am_depcomp="$ac_aux_dir/depcomp"
401  AMDEPBACKSLASH='\'
402  am__nodep='_no'
403fi
404AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
405AC_SUBST([AMDEPBACKSLASH])dnl
406_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
407AC_SUBST([am__nodep])dnl
408_AM_SUBST_NOTMAKE([am__nodep])dnl
409])
410
411# Generate code to set up dependency tracking.              -*- Autoconf -*-
412
413# Copyright (C) 1999-2014 Free Software Foundation, Inc.
414#
415# This file is free software; the Free Software Foundation
416# gives unlimited permission to copy and/or distribute it,
417# with or without modifications, as long as this notice is preserved.
418
419
420# _AM_OUTPUT_DEPENDENCY_COMMANDS
421# ------------------------------
422AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
423[{
424  # Older Autoconf quotes --file arguments for eval, but not when files
425  # are listed without --file.  Let's play safe and only enable the eval
426  # if we detect the quoting.
427  case $CONFIG_FILES in
428  *\'*) eval set x "$CONFIG_FILES" ;;
429  *)   set x $CONFIG_FILES ;;
430  esac
431  shift
432  for mf
433  do
434    # Strip MF so we end up with the name of the file.
435    mf=`echo "$mf" | sed -e 's/:.*$//'`
436    # Check whether this is an Automake generated Makefile or not.
437    # We used to match only the files named 'Makefile.in', but
438    # some people rename them; so instead we look at the file content.
439    # Grep'ing the first line is not enough: some people post-process
440    # each Makefile.in and add a new line on top of each file to say so.
441    # Grep'ing the whole file is not good either: AIX grep has a line
442    # limit of 2048, but all sed's we know have understand at least 4000.
443    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
444      dirpart=`AS_DIRNAME("$mf")`
445    else
446      continue
447    fi
448    # Extract the definition of DEPDIR, am__include, and am__quote
449    # from the Makefile without running 'make'.
450    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
451    test -z "$DEPDIR" && continue
452    am__include=`sed -n 's/^am__include = //p' < "$mf"`
453    test -z "$am__include" && continue
454    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
455    # Find all dependency output files, they are included files with
456    # $(DEPDIR) in their names.  We invoke sed twice because it is the
457    # simplest approach to changing $(DEPDIR) to its actual value in the
458    # expansion.
459    for file in `sed -n "
460      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
461	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
462      # Make sure the directory exists.
463      test -f "$dirpart/$file" && continue
464      fdir=`AS_DIRNAME(["$file"])`
465      AS_MKDIR_P([$dirpart/$fdir])
466      # echo "creating $dirpart/$file"
467      echo '# dummy' > "$dirpart/$file"
468    done
469  done
470}
471])# _AM_OUTPUT_DEPENDENCY_COMMANDS
472
473
474# AM_OUTPUT_DEPENDENCY_COMMANDS
475# -----------------------------
476# This macro should only be invoked once -- use via AC_REQUIRE.
477#
478# This code is only required when automatic dependency tracking
479# is enabled.  FIXME.  This creates each '.P' file that we will
480# need in order to bootstrap the dependency handling code.
481AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
482[AC_CONFIG_COMMANDS([depfiles],
483     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
484     [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
485])
486
487# Do all the work for Automake.                             -*- Autoconf -*-
488
489# Copyright (C) 1996-2014 Free Software Foundation, Inc.
490#
491# This file is free software; the Free Software Foundation
492# gives unlimited permission to copy and/or distribute it,
493# with or without modifications, as long as this notice is preserved.
494
495# This macro actually does too much.  Some checks are only needed if
496# your package does certain things.  But this isn't really a big deal.
497
498dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
499m4_define([AC_PROG_CC],
500m4_defn([AC_PROG_CC])
501[_AM_PROG_CC_C_O
502])
503
504# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
505# AM_INIT_AUTOMAKE([OPTIONS])
506# -----------------------------------------------
507# The call with PACKAGE and VERSION arguments is the old style
508# call (pre autoconf-2.50), which is being phased out.  PACKAGE
509# and VERSION should now be passed to AC_INIT and removed from
510# the call to AM_INIT_AUTOMAKE.
511# We support both call styles for the transition.  After
512# the next Automake release, Autoconf can make the AC_INIT
513# arguments mandatory, and then we can depend on a new Autoconf
514# release and drop the old call support.
515AC_DEFUN([AM_INIT_AUTOMAKE],
516[AC_PREREQ([2.65])dnl
517dnl Autoconf wants to disallow AM_ names.  We explicitly allow
518dnl the ones we care about.
519m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
520AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
521AC_REQUIRE([AC_PROG_INSTALL])dnl
522if test "`cd $srcdir && pwd`" != "`pwd`"; then
523  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
524  # is not polluted with repeated "-I."
525  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
526  # test to see if srcdir already configured
527  if test -f $srcdir/config.status; then
528    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
529  fi
530fi
531
532# test whether we have cygpath
533if test -z "$CYGPATH_W"; then
534  if (cygpath --version) >/dev/null 2>/dev/null; then
535    CYGPATH_W='cygpath -w'
536  else
537    CYGPATH_W=echo
538  fi
539fi
540AC_SUBST([CYGPATH_W])
541
542# Define the identity of the package.
543dnl Distinguish between old-style and new-style calls.
544m4_ifval([$2],
545[AC_DIAGNOSE([obsolete],
546             [$0: two- and three-arguments forms are deprecated.])
547m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
548 AC_SUBST([PACKAGE], [$1])dnl
549 AC_SUBST([VERSION], [$2])],
550[_AM_SET_OPTIONS([$1])dnl
551dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
552m4_if(
553  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
554  [ok:ok],,
555  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
556 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
557 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
558
559_AM_IF_OPTION([no-define],,
560[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
561 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
562
563# Some tools Automake needs.
564AC_REQUIRE([AM_SANITY_CHECK])dnl
565AC_REQUIRE([AC_ARG_PROGRAM])dnl
566AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
567AM_MISSING_PROG([AUTOCONF], [autoconf])
568AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
569AM_MISSING_PROG([AUTOHEADER], [autoheader])
570AM_MISSING_PROG([MAKEINFO], [makeinfo])
571AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
572AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
573AC_REQUIRE([AC_PROG_MKDIR_P])dnl
574# For better backward compatibility.  To be removed once Automake 1.9.x
575# dies out for good.  For more background, see:
576# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
577# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
578AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
579# We need awk for the "check" target (and possibly the TAP driver).  The
580# system "awk" is bad on some platforms.
581AC_REQUIRE([AC_PROG_AWK])dnl
582AC_REQUIRE([AC_PROG_MAKE_SET])dnl
583AC_REQUIRE([AM_SET_LEADING_DOT])dnl
584_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
585	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
586			     [_AM_PROG_TAR([v7])])])
587_AM_IF_OPTION([no-dependencies],,
588[AC_PROVIDE_IFELSE([AC_PROG_CC],
589		  [_AM_DEPENDENCIES([CC])],
590		  [m4_define([AC_PROG_CC],
591			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
592AC_PROVIDE_IFELSE([AC_PROG_CXX],
593		  [_AM_DEPENDENCIES([CXX])],
594		  [m4_define([AC_PROG_CXX],
595			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
596AC_PROVIDE_IFELSE([AC_PROG_OBJC],
597		  [_AM_DEPENDENCIES([OBJC])],
598		  [m4_define([AC_PROG_OBJC],
599			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
600AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
601		  [_AM_DEPENDENCIES([OBJCXX])],
602		  [m4_define([AC_PROG_OBJCXX],
603			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
604])
605AC_REQUIRE([AM_SILENT_RULES])dnl
606dnl The testsuite driver may need to know about EXEEXT, so add the
607dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
608dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
609AC_CONFIG_COMMANDS_PRE(dnl
610[m4_provide_if([_AM_COMPILER_EXEEXT],
611  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
612
613# POSIX will say in a future version that running "rm -f" with no argument
614# is OK; and we want to be able to make that assumption in our Makefile
615# recipes.  So use an aggressive probe to check that the usage we want is
616# actually supported "in the wild" to an acceptable degree.
617# See automake bug#10828.
618# To make any issue more visible, cause the running configure to be aborted
619# by default if the 'rm' program in use doesn't match our expectations; the
620# user can still override this though.
621if rm -f && rm -fr && rm -rf; then : OK; else
622  cat >&2 <<'END'
623Oops!
624
625Your 'rm' program seems unable to run without file operands specified
626on the command line, even when the '-f' option is present.  This is contrary
627to the behaviour of most rm programs out there, and not conforming with
628the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
629
630Please tell bug-automake@gnu.org about your system, including the value
631of your $PATH and any error possibly output before this message.  This
632can help us improve future automake versions.
633
634END
635  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
636    echo 'Configuration will proceed anyway, since you have set the' >&2
637    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
638    echo >&2
639  else
640    cat >&2 <<'END'
641Aborting the configuration process, to ensure you take notice of the issue.
642
643You can download and install GNU coreutils to get an 'rm' implementation
644that behaves properly: <http://www.gnu.org/software/coreutils/>.
645
646If you want to complete the configuration process using your problematic
647'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
648to "yes", and re-run configure.
649
650END
651    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
652  fi
653fi
654dnl The trailing newline in this macro's definition is deliberate, for
655dnl backward compatibility and to allow trailing 'dnl'-style comments
656dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
657])
658
659dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
660dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
661dnl mangled by Autoconf and run in a shell conditional statement.
662m4_define([_AC_COMPILER_EXEEXT],
663m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
664
665# When config.status generates a header, we must update the stamp-h file.
666# This file resides in the same directory as the config header
667# that is generated.  The stamp files are numbered to have different names.
668
669# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
670# loop where config.status creates the headers, so we can generate
671# our stamp files there.
672AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
673[# Compute $1's index in $config_headers.
674_am_arg=$1
675_am_stamp_count=1
676for _am_header in $config_headers :; do
677  case $_am_header in
678    $_am_arg | $_am_arg:* )
679      break ;;
680    * )
681      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
682  esac
683done
684echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
685
686# Copyright (C) 2001-2014 Free Software Foundation, Inc.
687#
688# This file is free software; the Free Software Foundation
689# gives unlimited permission to copy and/or distribute it,
690# with or without modifications, as long as this notice is preserved.
691
692# AM_PROG_INSTALL_SH
693# ------------------
694# Define $install_sh.
695AC_DEFUN([AM_PROG_INSTALL_SH],
696[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
697if test x"${install_sh+set}" != xset; then
698  case $am_aux_dir in
699  *\ * | *\	*)
700    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
701  *)
702    install_sh="\${SHELL} $am_aux_dir/install-sh"
703  esac
704fi
705AC_SUBST([install_sh])])
706
707# Copyright (C) 2003-2014 Free Software Foundation, Inc.
708#
709# This file is free software; the Free Software Foundation
710# gives unlimited permission to copy and/or distribute it,
711# with or without modifications, as long as this notice is preserved.
712
713# Check whether the underlying file-system supports filenames
714# with a leading dot.  For instance MS-DOS doesn't.
715AC_DEFUN([AM_SET_LEADING_DOT],
716[rm -rf .tst 2>/dev/null
717mkdir .tst 2>/dev/null
718if test -d .tst; then
719  am__leading_dot=.
720else
721  am__leading_dot=_
722fi
723rmdir .tst 2>/dev/null
724AC_SUBST([am__leading_dot])])
725
726# Check to see how 'make' treats includes.	            -*- Autoconf -*-
727
728# Copyright (C) 2001-2014 Free Software Foundation, Inc.
729#
730# This file is free software; the Free Software Foundation
731# gives unlimited permission to copy and/or distribute it,
732# with or without modifications, as long as this notice is preserved.
733
734# AM_MAKE_INCLUDE()
735# -----------------
736# Check to see how make treats includes.
737AC_DEFUN([AM_MAKE_INCLUDE],
738[am_make=${MAKE-make}
739cat > confinc << 'END'
740am__doit:
741	@echo this is the am__doit target
742.PHONY: am__doit
743END
744# If we don't find an include directive, just comment out the code.
745AC_MSG_CHECKING([for style of include used by $am_make])
746am__include="#"
747am__quote=
748_am_result=none
749# First try GNU make style include.
750echo "include confinc" > confmf
751# Ignore all kinds of additional output from 'make'.
752case `$am_make -s -f confmf 2> /dev/null` in #(
753*the\ am__doit\ target*)
754  am__include=include
755  am__quote=
756  _am_result=GNU
757  ;;
758esac
759# Now try BSD make style include.
760if test "$am__include" = "#"; then
761   echo '.include "confinc"' > confmf
762   case `$am_make -s -f confmf 2> /dev/null` in #(
763   *the\ am__doit\ target*)
764     am__include=.include
765     am__quote="\""
766     _am_result=BSD
767     ;;
768   esac
769fi
770AC_SUBST([am__include])
771AC_SUBST([am__quote])
772AC_MSG_RESULT([$_am_result])
773rm -f confinc confmf
774])
775
776# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
777
778# Copyright (C) 1997-2014 Free Software Foundation, Inc.
779#
780# This file is free software; the Free Software Foundation
781# gives unlimited permission to copy and/or distribute it,
782# with or without modifications, as long as this notice is preserved.
783
784# AM_MISSING_PROG(NAME, PROGRAM)
785# ------------------------------
786AC_DEFUN([AM_MISSING_PROG],
787[AC_REQUIRE([AM_MISSING_HAS_RUN])
788$1=${$1-"${am_missing_run}$2"}
789AC_SUBST($1)])
790
791# AM_MISSING_HAS_RUN
792# ------------------
793# Define MISSING if not defined so far and test if it is modern enough.
794# If it is, set am_missing_run to use it, otherwise, to nothing.
795AC_DEFUN([AM_MISSING_HAS_RUN],
796[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
797AC_REQUIRE_AUX_FILE([missing])dnl
798if test x"${MISSING+set}" != xset; then
799  case $am_aux_dir in
800  *\ * | *\	*)
801    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
802  *)
803    MISSING="\${SHELL} $am_aux_dir/missing" ;;
804  esac
805fi
806# Use eval to expand $SHELL
807if eval "$MISSING --is-lightweight"; then
808  am_missing_run="$MISSING "
809else
810  am_missing_run=
811  AC_MSG_WARN(['missing' script is too old or missing])
812fi
813])
814
815# Helper functions for option handling.                     -*- Autoconf -*-
816
817# Copyright (C) 2001-2014 Free Software Foundation, Inc.
818#
819# This file is free software; the Free Software Foundation
820# gives unlimited permission to copy and/or distribute it,
821# with or without modifications, as long as this notice is preserved.
822
823# _AM_MANGLE_OPTION(NAME)
824# -----------------------
825AC_DEFUN([_AM_MANGLE_OPTION],
826[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
827
828# _AM_SET_OPTION(NAME)
829# --------------------
830# Set option NAME.  Presently that only means defining a flag for this option.
831AC_DEFUN([_AM_SET_OPTION],
832[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
833
834# _AM_SET_OPTIONS(OPTIONS)
835# ------------------------
836# OPTIONS is a space-separated list of Automake options.
837AC_DEFUN([_AM_SET_OPTIONS],
838[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
839
840# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
841# -------------------------------------------
842# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
843AC_DEFUN([_AM_IF_OPTION],
844[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
845
846# Copyright (C) 1999-2014 Free Software Foundation, Inc.
847#
848# This file is free software; the Free Software Foundation
849# gives unlimited permission to copy and/or distribute it,
850# with or without modifications, as long as this notice is preserved.
851
852# _AM_PROG_CC_C_O
853# ---------------
854# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
855# to automatically call this.
856AC_DEFUN([_AM_PROG_CC_C_O],
857[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
858AC_REQUIRE_AUX_FILE([compile])dnl
859AC_LANG_PUSH([C])dnl
860AC_CACHE_CHECK(
861  [whether $CC understands -c and -o together],
862  [am_cv_prog_cc_c_o],
863  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
864  # Make sure it works both with $CC and with simple cc.
865  # Following AC_PROG_CC_C_O, we do the test twice because some
866  # compilers refuse to overwrite an existing .o file with -o,
867  # though they will create one.
868  am_cv_prog_cc_c_o=yes
869  for am_i in 1 2; do
870    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
871         && test -f conftest2.$ac_objext; then
872      : OK
873    else
874      am_cv_prog_cc_c_o=no
875      break
876    fi
877  done
878  rm -f core conftest*
879  unset am_i])
880if test "$am_cv_prog_cc_c_o" != yes; then
881   # Losing compiler, so override with the script.
882   # FIXME: It is wrong to rewrite CC.
883   # But if we don't then we get into trouble of one sort or another.
884   # A longer-term fix would be to have automake use am__CC in this case,
885   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
886   CC="$am_aux_dir/compile $CC"
887fi
888AC_LANG_POP([C])])
889
890# For backward compatibility.
891AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
892
893# Copyright (C) 2001-2014 Free Software Foundation, Inc.
894#
895# This file is free software; the Free Software Foundation
896# gives unlimited permission to copy and/or distribute it,
897# with or without modifications, as long as this notice is preserved.
898
899# AM_RUN_LOG(COMMAND)
900# -------------------
901# Run COMMAND, save the exit status in ac_status, and log it.
902# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
903AC_DEFUN([AM_RUN_LOG],
904[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
905   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
906   ac_status=$?
907   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
908   (exit $ac_status); }])
909
910# Check to make sure that the build environment is sane.    -*- Autoconf -*-
911
912# Copyright (C) 1996-2014 Free Software Foundation, Inc.
913#
914# This file is free software; the Free Software Foundation
915# gives unlimited permission to copy and/or distribute it,
916# with or without modifications, as long as this notice is preserved.
917
918# AM_SANITY_CHECK
919# ---------------
920AC_DEFUN([AM_SANITY_CHECK],
921[AC_MSG_CHECKING([whether build environment is sane])
922# Reject unsafe characters in $srcdir or the absolute working directory
923# name.  Accept space and tab only in the latter.
924am_lf='
925'
926case `pwd` in
927  *[[\\\"\#\$\&\'\`$am_lf]]*)
928    AC_MSG_ERROR([unsafe absolute working directory name]);;
929esac
930case $srcdir in
931  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
932    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
933esac
934
935# Do 'set' in a subshell so we don't clobber the current shell's
936# arguments.  Must try -L first in case configure is actually a
937# symlink; some systems play weird games with the mod time of symlinks
938# (eg FreeBSD returns the mod time of the symlink's containing
939# directory).
940if (
941   am_has_slept=no
942   for am_try in 1 2; do
943     echo "timestamp, slept: $am_has_slept" > conftest.file
944     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
945     if test "$[*]" = "X"; then
946	# -L didn't work.
947	set X `ls -t "$srcdir/configure" conftest.file`
948     fi
949     if test "$[*]" != "X $srcdir/configure conftest.file" \
950	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
951
952	# If neither matched, then we have a broken ls.  This can happen
953	# if, for instance, CONFIG_SHELL is bash and it inherits a
954	# broken ls alias from the environment.  This has actually
955	# happened.  Such a system could not be considered "sane".
956	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
957  alias in your environment])
958     fi
959     if test "$[2]" = conftest.file || test $am_try -eq 2; then
960       break
961     fi
962     # Just in case.
963     sleep 1
964     am_has_slept=yes
965   done
966   test "$[2]" = conftest.file
967   )
968then
969   # Ok.
970   :
971else
972   AC_MSG_ERROR([newly created file is older than distributed files!
973Check your system clock])
974fi
975AC_MSG_RESULT([yes])
976# If we didn't sleep, we still need to ensure time stamps of config.status and
977# generated files are strictly newer.
978am_sleep_pid=
979if grep 'slept: no' conftest.file >/dev/null 2>&1; then
980  ( sleep 1 ) &
981  am_sleep_pid=$!
982fi
983AC_CONFIG_COMMANDS_PRE(
984  [AC_MSG_CHECKING([that generated files are newer than configure])
985   if test -n "$am_sleep_pid"; then
986     # Hide warnings about reused PIDs.
987     wait $am_sleep_pid 2>/dev/null
988   fi
989   AC_MSG_RESULT([done])])
990rm -f conftest.file
991])
992
993# Copyright (C) 2009-2014 Free Software Foundation, Inc.
994#
995# This file is free software; the Free Software Foundation
996# gives unlimited permission to copy and/or distribute it,
997# with or without modifications, as long as this notice is preserved.
998
999# AM_SILENT_RULES([DEFAULT])
1000# --------------------------
1001# Enable less verbose build rules; with the default set to DEFAULT
1002# ("yes" being less verbose, "no" or empty being verbose).
1003AC_DEFUN([AM_SILENT_RULES],
1004[AC_ARG_ENABLE([silent-rules], [dnl
1005AS_HELP_STRING(
1006  [--enable-silent-rules],
1007  [less verbose build output (undo: "make V=1")])
1008AS_HELP_STRING(
1009  [--disable-silent-rules],
1010  [verbose build output (undo: "make V=0")])dnl
1011])
1012case $enable_silent_rules in @%:@ (((
1013  yes) AM_DEFAULT_VERBOSITY=0;;
1014   no) AM_DEFAULT_VERBOSITY=1;;
1015    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1016esac
1017dnl
1018dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1019dnl do not support nested variable expansions.
1020dnl See automake bug#9928 and bug#10237.
1021am_make=${MAKE-make}
1022AC_CACHE_CHECK([whether $am_make supports nested variables],
1023   [am_cv_make_support_nested_variables],
1024   [if AS_ECHO([['TRUE=$(BAR$(V))
1025BAR0=false
1026BAR1=true
1027V=1
1028am__doit:
1029	@$(TRUE)
1030.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1031  am_cv_make_support_nested_variables=yes
1032else
1033  am_cv_make_support_nested_variables=no
1034fi])
1035if test $am_cv_make_support_nested_variables = yes; then
1036  dnl Using '$V' instead of '$(V)' breaks IRIX make.
1037  AM_V='$(V)'
1038  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1039else
1040  AM_V=$AM_DEFAULT_VERBOSITY
1041  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1042fi
1043AC_SUBST([AM_V])dnl
1044AM_SUBST_NOTMAKE([AM_V])dnl
1045AC_SUBST([AM_DEFAULT_V])dnl
1046AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1047AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1048AM_BACKSLASH='\'
1049AC_SUBST([AM_BACKSLASH])dnl
1050_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1051])
1052
1053# Copyright (C) 2001-2014 Free Software Foundation, Inc.
1054#
1055# This file is free software; the Free Software Foundation
1056# gives unlimited permission to copy and/or distribute it,
1057# with or without modifications, as long as this notice is preserved.
1058
1059# AM_PROG_INSTALL_STRIP
1060# ---------------------
1061# One issue with vendor 'install' (even GNU) is that you can't
1062# specify the program used to strip binaries.  This is especially
1063# annoying in cross-compiling environments, where the build's strip
1064# is unlikely to handle the host's binaries.
1065# Fortunately install-sh will honor a STRIPPROG variable, so we
1066# always use install-sh in "make install-strip", and initialize
1067# STRIPPROG with the value of the STRIP variable (set by the user).
1068AC_DEFUN([AM_PROG_INSTALL_STRIP],
1069[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1070# Installed binaries are usually stripped using 'strip' when the user
1071# run "make install-strip".  However 'strip' might not be the right
1072# tool to use in cross-compilation environments, therefore Automake
1073# will honor the 'STRIP' environment variable to overrule this program.
1074dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1075if test "$cross_compiling" != no; then
1076  AC_CHECK_TOOL([STRIP], [strip], :)
1077fi
1078INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1079AC_SUBST([INSTALL_STRIP_PROGRAM])])
1080
1081# Copyright (C) 2006-2014 Free Software Foundation, Inc.
1082#
1083# This file is free software; the Free Software Foundation
1084# gives unlimited permission to copy and/or distribute it,
1085# with or without modifications, as long as this notice is preserved.
1086
1087# _AM_SUBST_NOTMAKE(VARIABLE)
1088# ---------------------------
1089# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1090# This macro is traced by Automake.
1091AC_DEFUN([_AM_SUBST_NOTMAKE])
1092
1093# AM_SUBST_NOTMAKE(VARIABLE)
1094# --------------------------
1095# Public sister of _AM_SUBST_NOTMAKE.
1096AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1097
1098# Check how to create a tarball.                            -*- Autoconf -*-
1099
1100# Copyright (C) 2004-2014 Free Software Foundation, Inc.
1101#
1102# This file is free software; the Free Software Foundation
1103# gives unlimited permission to copy and/or distribute it,
1104# with or without modifications, as long as this notice is preserved.
1105
1106# _AM_PROG_TAR(FORMAT)
1107# --------------------
1108# Check how to create a tarball in format FORMAT.
1109# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1110#
1111# Substitute a variable $(am__tar) that is a command
1112# writing to stdout a FORMAT-tarball containing the directory
1113# $tardir.
1114#     tardir=directory && $(am__tar) > result.tar
1115#
1116# Substitute a variable $(am__untar) that extract such
1117# a tarball read from stdin.
1118#     $(am__untar) < result.tar
1119#
1120AC_DEFUN([_AM_PROG_TAR],
1121[# Always define AMTAR for backward compatibility.  Yes, it's still used
1122# in the wild :-(  We should find a proper way to deprecate it ...
1123AC_SUBST([AMTAR], ['$${TAR-tar}'])
1124
1125# We'll loop over all known methods to create a tar archive until one works.
1126_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1127
1128m4_if([$1], [v7],
1129  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1130
1131  [m4_case([$1],
1132    [ustar],
1133     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1134      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1135      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1136      # and bug#13588).
1137      am_max_uid=2097151 # 2^21 - 1
1138      am_max_gid=$am_max_uid
1139      # The $UID and $GID variables are not portable, so we need to resort
1140      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1141      # below are definitely unexpected, so allow the users to see them
1142      # (that is, avoid stderr redirection).
1143      am_uid=`id -u || echo unknown`
1144      am_gid=`id -g || echo unknown`
1145      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1146      if test $am_uid -le $am_max_uid; then
1147         AC_MSG_RESULT([yes])
1148      else
1149         AC_MSG_RESULT([no])
1150         _am_tools=none
1151      fi
1152      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1153      if test $am_gid -le $am_max_gid; then
1154         AC_MSG_RESULT([yes])
1155      else
1156        AC_MSG_RESULT([no])
1157        _am_tools=none
1158      fi],
1159
1160  [pax],
1161    [],
1162
1163  [m4_fatal([Unknown tar format])])
1164
1165  AC_MSG_CHECKING([how to create a $1 tar archive])
1166
1167  # Go ahead even if we have the value already cached.  We do so because we
1168  # need to set the values for the 'am__tar' and 'am__untar' variables.
1169  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1170
1171  for _am_tool in $_am_tools; do
1172    case $_am_tool in
1173    gnutar)
1174      for _am_tar in tar gnutar gtar; do
1175        AM_RUN_LOG([$_am_tar --version]) && break
1176      done
1177      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1178      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1179      am__untar="$_am_tar -xf -"
1180      ;;
1181    plaintar)
1182      # Must skip GNU tar: if it does not support --format= it doesn't create
1183      # ustar tarball either.
1184      (tar --version) >/dev/null 2>&1 && continue
1185      am__tar='tar chf - "$$tardir"'
1186      am__tar_='tar chf - "$tardir"'
1187      am__untar='tar xf -'
1188      ;;
1189    pax)
1190      am__tar='pax -L -x $1 -w "$$tardir"'
1191      am__tar_='pax -L -x $1 -w "$tardir"'
1192      am__untar='pax -r'
1193      ;;
1194    cpio)
1195      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1196      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1197      am__untar='cpio -i -H $1 -d'
1198      ;;
1199    none)
1200      am__tar=false
1201      am__tar_=false
1202      am__untar=false
1203      ;;
1204    esac
1205
1206    # If the value was cached, stop now.  We just wanted to have am__tar
1207    # and am__untar set.
1208    test -n "${am_cv_prog_tar_$1}" && break
1209
1210    # tar/untar a dummy directory, and stop if the command works.
1211    rm -rf conftest.dir
1212    mkdir conftest.dir
1213    echo GrepMe > conftest.dir/file
1214    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1215    rm -rf conftest.dir
1216    if test -s conftest.tar; then
1217      AM_RUN_LOG([$am__untar <conftest.tar])
1218      AM_RUN_LOG([cat conftest.dir/file])
1219      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1220    fi
1221  done
1222  rm -rf conftest.dir
1223
1224  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1225  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1226
1227AC_SUBST([am__tar])
1228AC_SUBST([am__untar])
1229]) # _AM_PROG_TAR
1230
1231m4_include([m4/libtool.m4])
1232m4_include([m4/ltoptions.m4])
1233m4_include([m4/ltsugar.m4])
1234m4_include([m4/ltversion.m4])
1235m4_include([m4/lt~obsolete.m4])
1236m4_include([acinclude.m4])
1237