VirtualBox

source: vbox/trunk/src/libs/libpng-1.6.36/aclocal.m4@ 76549

最後變更 在這個檔案從76549是 76030,由 vboxsync 提交於 6 年 前

libpng-1.6.36: properly export to OSE, and while at it fix EOL style for shell scripts

  • 屬性 svn:eol-style 設為 native
檔案大小: 43.4 KB
 
1# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
2
3# Copyright (C) 1996-2018 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# Copyright (C) 2002-2018 Free Software Foundation, Inc.
24#
25# This file is free software; the Free Software Foundation
26# gives unlimited permission to copy and/or distribute it,
27# with or without modifications, as long as this notice is preserved.
28
29# AM_AUTOMAKE_VERSION(VERSION)
30# ----------------------------
31# Automake X.Y traces this macro to ensure aclocal.m4 has been
32# generated from the m4 files accompanying Automake X.Y.
33# (This private macro should not be called outside this file.)
34AC_DEFUN([AM_AUTOMAKE_VERSION],
35[am__api_version='1.16'
36dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
37dnl require some minimum version. Point them to the right macro.
38m4_if([$1], [1.16.1], [],
39 [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
40])
41
42# _AM_AUTOCONF_VERSION(VERSION)
43# -----------------------------
44# aclocal traces this macro to find the Autoconf version.
45# This is a private macro too. Using m4_define simplifies
46# the logic in aclocal, which can simply ignore this definition.
47m4_define([_AM_AUTOCONF_VERSION], [])
48
49# AM_SET_CURRENT_AUTOMAKE_VERSION
50# -------------------------------
51# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
52# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
53AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
54[AM_AUTOMAKE_VERSION([1.16.1])dnl
55m4_ifndef([AC_AUTOCONF_VERSION],
56 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
57_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
58
59# Figure out how to run the assembler. -*- Autoconf -*-
60
61# Copyright (C) 2001-2018 Free Software Foundation, Inc.
62#
63# This file is free software; the Free Software Foundation
64# gives unlimited permission to copy and/or distribute it,
65# with or without modifications, as long as this notice is preserved.
66
67# AM_PROG_AS
68# ----------
69AC_DEFUN([AM_PROG_AS],
70[# By default we simply use the C compiler to build assembly code.
71AC_REQUIRE([AC_PROG_CC])
72test "${CCAS+set}" = set || CCAS=$CC
73test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
74AC_ARG_VAR([CCAS], [assembler compiler command (defaults to CC)])
75AC_ARG_VAR([CCASFLAGS], [assembler compiler flags (defaults to CFLAGS)])
76_AM_IF_OPTION([no-dependencies],, [_AM_DEPENDENCIES([CCAS])])dnl
77])
78
79# AM_AUX_DIR_EXPAND -*- Autoconf -*-
80
81# Copyright (C) 2001-2018 Free Software Foundation, Inc.
82#
83# This file is free software; the Free Software Foundation
84# gives unlimited permission to copy and/or distribute it,
85# with or without modifications, as long as this notice is preserved.
86
87# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
88# $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
89# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
90#
91# Of course, Automake must honor this variable whenever it calls a
92# tool from the auxiliary directory. The problem is that $srcdir (and
93# therefore $ac_aux_dir as well) can be either absolute or relative,
94# depending on how configure is run. This is pretty annoying, since
95# it makes $ac_aux_dir quite unusable in subdirectories: in the top
96# source directory, any form will work fine, but in subdirectories a
97# relative path needs to be adjusted first.
98#
99# $ac_aux_dir/missing
100# fails when called from a subdirectory if $ac_aux_dir is relative
101# $top_srcdir/$ac_aux_dir/missing
102# fails if $ac_aux_dir is absolute,
103# fails when called from a subdirectory in a VPATH build with
104# a relative $ac_aux_dir
105#
106# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
107# are both prefixed by $srcdir. In an in-source build this is usually
108# harmless because $srcdir is '.', but things will broke when you
109# start a VPATH build or use an absolute $srcdir.
110#
111# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
112# iff we strip the leading $srcdir from $ac_aux_dir. That would be:
113# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
114# and then we would define $MISSING as
115# MISSING="\${SHELL} $am_aux_dir/missing"
116# This will work as long as MISSING is not called from configure, because
117# unfortunately $(top_srcdir) has no meaning in configure.
118# However there are other variables, like CC, which are often used in
119# configure, and could therefore not use this "fixed" $ac_aux_dir.
120#
121# Another solution, used here, is to always expand $ac_aux_dir to an
122# absolute PATH. The drawback is that using absolute paths prevent a
123# configured tree to be moved without reconfiguration.
124
125AC_DEFUN([AM_AUX_DIR_EXPAND],
126[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
127# Expand $ac_aux_dir to an absolute path.
128am_aux_dir=`cd "$ac_aux_dir" && pwd`
129])
130
131# AM_CONDITIONAL -*- Autoconf -*-
132
133# Copyright (C) 1997-2018 Free Software Foundation, Inc.
134#
135# This file is free software; the Free Software Foundation
136# gives unlimited permission to copy and/or distribute it,
137# with or without modifications, as long as this notice is preserved.
138
139# AM_CONDITIONAL(NAME, SHELL-CONDITION)
140# -------------------------------------
141# Define a conditional.
142AC_DEFUN([AM_CONDITIONAL],
143[AC_PREREQ([2.52])dnl
144 m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
145 [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
146AC_SUBST([$1_TRUE])dnl
147AC_SUBST([$1_FALSE])dnl
148_AM_SUBST_NOTMAKE([$1_TRUE])dnl
149_AM_SUBST_NOTMAKE([$1_FALSE])dnl
150m4_define([_AM_COND_VALUE_$1], [$2])dnl
151if $2; then
152 $1_TRUE=
153 $1_FALSE='#'
154else
155 $1_TRUE='#'
156 $1_FALSE=
157fi
158AC_CONFIG_COMMANDS_PRE(
159[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
160 AC_MSG_ERROR([[conditional "$1" was never defined.
161Usually this means the macro was only invoked conditionally.]])
162fi])])
163
164# Copyright (C) 1999-2018 Free Software Foundation, Inc.
165#
166# This file is free software; the Free Software Foundation
167# gives unlimited permission to copy and/or distribute it,
168# with or without modifications, as long as this notice is preserved.
169
170
171# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
172# written in clear, in which case automake, when reading aclocal.m4,
173# will think it sees a *use*, and therefore will trigger all it's
174# C support machinery. Also note that it means that autoscan, seeing
175# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
176
177
178# _AM_DEPENDENCIES(NAME)
179# ----------------------
180# See how the compiler implements dependency checking.
181# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
182# We try a few techniques and use that to set a single cache variable.
183#
184# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
185# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
186# dependency, and given that the user is not expected to run this macro,
187# just rely on AC_PROG_CC.
188AC_DEFUN([_AM_DEPENDENCIES],
189[AC_REQUIRE([AM_SET_DEPDIR])dnl
190AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
191AC_REQUIRE([AM_MAKE_INCLUDE])dnl
192AC_REQUIRE([AM_DEP_TRACK])dnl
193
194m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
195 [$1], [CXX], [depcc="$CXX" am_compiler_list=],
196 [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
197 [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
198 [$1], [UPC], [depcc="$UPC" am_compiler_list=],
199 [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
200 [depcc="$$1" am_compiler_list=])
201
202AC_CACHE_CHECK([dependency style of $depcc],
203 [am_cv_$1_dependencies_compiler_type],
204[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
205 # We make a subdir and do the tests there. Otherwise we can end up
206 # making bogus files that we don't know about and never remove. For
207 # instance it was reported that on HP-UX the gcc test will end up
208 # making a dummy file named 'D' -- because '-MD' means "put the output
209 # in D".
210 rm -rf conftest.dir
211 mkdir conftest.dir
212 # Copy depcomp to subdir because otherwise we won't find it if we're
213 # using a relative directory.
214 cp "$am_depcomp" conftest.dir
215 cd conftest.dir
216 # We will build objects and dependencies in a subdirectory because
217 # it helps to detect inapplicable dependency modes. For instance
218 # both Tru64's cc and ICC support -MD to output dependencies as a
219 # side effect of compilation, but ICC will put the dependencies in
220 # the current directory while Tru64 will put them in the object
221 # directory.
222 mkdir sub
223
224 am_cv_$1_dependencies_compiler_type=none
225 if test "$am_compiler_list" = ""; then
226 am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
227 fi
228 am__universal=false
229 m4_case([$1], [CC],
230 [case " $depcc " in #(
231 *\ -arch\ *\ -arch\ *) am__universal=true ;;
232 esac],
233 [CXX],
234 [case " $depcc " in #(
235 *\ -arch\ *\ -arch\ *) am__universal=true ;;
236 esac])
237
238 for depmode in $am_compiler_list; do
239 # Setup a source with many dependencies, because some compilers
240 # like to wrap large dependency lists on column 80 (with \), and
241 # we should not choose a depcomp mode which is confused by this.
242 #
243 # We need to recreate these files for each test, as the compiler may
244 # overwrite some of them when testing with obscure command lines.
245 # This happens at least with the AIX C compiler.
246 : > sub/conftest.c
247 for i in 1 2 3 4 5 6; do
248 echo '#include "conftst'$i'.h"' >> sub/conftest.c
249 # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
250 # Solaris 10 /bin/sh.
251 echo '/* dummy */' > sub/conftst$i.h
252 done
253 echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
254
255 # We check with '-c' and '-o' for the sake of the "dashmstdout"
256 # mode. It turns out that the SunPro C++ compiler does not properly
257 # handle '-M -o', and we need to detect this. Also, some Intel
258 # versions had trouble with output in subdirs.
259 am__obj=sub/conftest.${OBJEXT-o}
260 am__minus_obj="-o $am__obj"
261 case $depmode in
262 gcc)
263 # This depmode causes a compiler race in universal mode.
264 test "$am__universal" = false || continue
265 ;;
266 nosideeffect)
267 # After this tag, mechanisms are not by side-effect, so they'll
268 # only be used when explicitly requested.
269 if test "x$enable_dependency_tracking" = xyes; then
270 continue
271 else
272 break
273 fi
274 ;;
275 msvc7 | msvc7msys | msvisualcpp | msvcmsys)
276 # This compiler won't grok '-c -o', but also, the minuso test has
277 # not run yet. These depmodes are late enough in the game, and
278 # so weak that their functioning should not be impacted.
279 am__obj=conftest.${OBJEXT-o}
280 am__minus_obj=
281 ;;
282 none) break ;;
283 esac
284 if depmode=$depmode \
285 source=sub/conftest.c object=$am__obj \
286 depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
287 $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
288 >/dev/null 2>conftest.err &&
289 grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
290 grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
291 grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
292 ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
293 # icc doesn't choke on unknown options, it will just issue warnings
294 # or remarks (even with -Werror). So we grep stderr for any message
295 # that says an option was ignored or not supported.
296 # When given -MP, icc 7.0 and 7.1 complain thusly:
297 # icc: Command line warning: ignoring option '-M'; no argument required
298 # The diagnosis changed in icc 8.0:
299 # icc: Command line remark: option '-MP' not supported
300 if (grep 'ignoring option' conftest.err ||
301 grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
302 am_cv_$1_dependencies_compiler_type=$depmode
303 break
304 fi
305 fi
306 done
307
308 cd ..
309 rm -rf conftest.dir
310else
311 am_cv_$1_dependencies_compiler_type=none
312fi
313])
314AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
315AM_CONDITIONAL([am__fastdep$1], [
316 test "x$enable_dependency_tracking" != xno \
317 && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
318])
319
320
321# AM_SET_DEPDIR
322# -------------
323# Choose a directory name for dependency files.
324# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
325AC_DEFUN([AM_SET_DEPDIR],
326[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
327AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
328])
329
330
331# AM_DEP_TRACK
332# ------------
333AC_DEFUN([AM_DEP_TRACK],
334[AC_ARG_ENABLE([dependency-tracking], [dnl
335AS_HELP_STRING(
336 [--enable-dependency-tracking],
337 [do not reject slow dependency extractors])
338AS_HELP_STRING(
339 [--disable-dependency-tracking],
340 [speeds up one-time build])])
341if test "x$enable_dependency_tracking" != xno; then
342 am_depcomp="$ac_aux_dir/depcomp"
343 AMDEPBACKSLASH='\'
344 am__nodep='_no'
345fi
346AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
347AC_SUBST([AMDEPBACKSLASH])dnl
348_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
349AC_SUBST([am__nodep])dnl
350_AM_SUBST_NOTMAKE([am__nodep])dnl
351])
352
353# Generate code to set up dependency tracking. -*- Autoconf -*-
354
355# Copyright (C) 1999-2018 Free Software Foundation, Inc.
356#
357# This file is free software; the Free Software Foundation
358# gives unlimited permission to copy and/or distribute it,
359# with or without modifications, as long as this notice is preserved.
360
361# _AM_OUTPUT_DEPENDENCY_COMMANDS
362# ------------------------------
363AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
364[{
365 # Older Autoconf quotes --file arguments for eval, but not when files
366 # are listed without --file. Let's play safe and only enable the eval
367 # if we detect the quoting.
368 # TODO: see whether this extra hack can be removed once we start
369 # requiring Autoconf 2.70 or later.
370 AS_CASE([$CONFIG_FILES],
371 [*\'*], [eval set x "$CONFIG_FILES"],
372 [*], [set x $CONFIG_FILES])
373 shift
374 # Used to flag and report bootstrapping failures.
375 am_rc=0
376 for am_mf
377 do
378 # Strip MF so we end up with the name of the file.
379 am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
380 # Check whether this is an Automake generated Makefile which includes
381 # dependency-tracking related rules and includes.
382 # Grep'ing the whole file directly is not great: AIX grep has a line
383 # limit of 2048, but all sed's we know have understand at least 4000.
384 sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
385 || continue
386 am_dirpart=`AS_DIRNAME(["$am_mf"])`
387 am_filepart=`AS_BASENAME(["$am_mf"])`
388 AM_RUN_LOG([cd "$am_dirpart" \
389 && sed -e '/# am--include-marker/d' "$am_filepart" \
390 | $MAKE -f - am--depfiles]) || am_rc=$?
391 done
392 if test $am_rc -ne 0; then
393 AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
394 for automatic dependency tracking. Try re-running configure with the
395 '--disable-dependency-tracking' option to at least be able to build
396 the package (albeit without support for automatic dependency tracking).])
397 fi
398 AS_UNSET([am_dirpart])
399 AS_UNSET([am_filepart])
400 AS_UNSET([am_mf])
401 AS_UNSET([am_rc])
402 rm -f conftest-deps.mk
403}
404])# _AM_OUTPUT_DEPENDENCY_COMMANDS
405
406
407# AM_OUTPUT_DEPENDENCY_COMMANDS
408# -----------------------------
409# This macro should only be invoked once -- use via AC_REQUIRE.
410#
411# This code is only required when automatic dependency tracking is enabled.
412# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
413# order to bootstrap the dependency handling code.
414AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
415[AC_CONFIG_COMMANDS([depfiles],
416 [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
417 [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
418
419# Do all the work for Automake. -*- Autoconf -*-
420
421# Copyright (C) 1996-2018 Free Software Foundation, Inc.
422#
423# This file is free software; the Free Software Foundation
424# gives unlimited permission to copy and/or distribute it,
425# with or without modifications, as long as this notice is preserved.
426
427# This macro actually does too much. Some checks are only needed if
428# your package does certain things. But this isn't really a big deal.
429
430dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
431m4_define([AC_PROG_CC],
432m4_defn([AC_PROG_CC])
433[_AM_PROG_CC_C_O
434])
435
436# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
437# AM_INIT_AUTOMAKE([OPTIONS])
438# -----------------------------------------------
439# The call with PACKAGE and VERSION arguments is the old style
440# call (pre autoconf-2.50), which is being phased out. PACKAGE
441# and VERSION should now be passed to AC_INIT and removed from
442# the call to AM_INIT_AUTOMAKE.
443# We support both call styles for the transition. After
444# the next Automake release, Autoconf can make the AC_INIT
445# arguments mandatory, and then we can depend on a new Autoconf
446# release and drop the old call support.
447AC_DEFUN([AM_INIT_AUTOMAKE],
448[AC_PREREQ([2.65])dnl
449dnl Autoconf wants to disallow AM_ names. We explicitly allow
450dnl the ones we care about.
451m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
452AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
453AC_REQUIRE([AC_PROG_INSTALL])dnl
454if test "`cd $srcdir && pwd`" != "`pwd`"; then
455 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
456 # is not polluted with repeated "-I."
457 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
458 # test to see if srcdir already configured
459 if test -f $srcdir/config.status; then
460 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
461 fi
462fi
463
464# test whether we have cygpath
465if test -z "$CYGPATH_W"; then
466 if (cygpath --version) >/dev/null 2>/dev/null; then
467 CYGPATH_W='cygpath -w'
468 else
469 CYGPATH_W=echo
470 fi
471fi
472AC_SUBST([CYGPATH_W])
473
474# Define the identity of the package.
475dnl Distinguish between old-style and new-style calls.
476m4_ifval([$2],
477[AC_DIAGNOSE([obsolete],
478 [$0: two- and three-arguments forms are deprecated.])
479m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
480 AC_SUBST([PACKAGE], [$1])dnl
481 AC_SUBST([VERSION], [$2])],
482[_AM_SET_OPTIONS([$1])dnl
483dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
484m4_if(
485 m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
486 [ok:ok],,
487 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
488 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
489 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
490
491_AM_IF_OPTION([no-define],,
492[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
493 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
494
495# Some tools Automake needs.
496AC_REQUIRE([AM_SANITY_CHECK])dnl
497AC_REQUIRE([AC_ARG_PROGRAM])dnl
498AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
499AM_MISSING_PROG([AUTOCONF], [autoconf])
500AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
501AM_MISSING_PROG([AUTOHEADER], [autoheader])
502AM_MISSING_PROG([MAKEINFO], [makeinfo])
503AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
504AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
505AC_REQUIRE([AC_PROG_MKDIR_P])dnl
506# For better backward compatibility. To be removed once Automake 1.9.x
507# dies out for good. For more background, see:
508# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
509# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
510AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
511# We need awk for the "check" target (and possibly the TAP driver). The
512# system "awk" is bad on some platforms.
513AC_REQUIRE([AC_PROG_AWK])dnl
514AC_REQUIRE([AC_PROG_MAKE_SET])dnl
515AC_REQUIRE([AM_SET_LEADING_DOT])dnl
516_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
517 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
518 [_AM_PROG_TAR([v7])])])
519_AM_IF_OPTION([no-dependencies],,
520[AC_PROVIDE_IFELSE([AC_PROG_CC],
521 [_AM_DEPENDENCIES([CC])],
522 [m4_define([AC_PROG_CC],
523 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
524AC_PROVIDE_IFELSE([AC_PROG_CXX],
525 [_AM_DEPENDENCIES([CXX])],
526 [m4_define([AC_PROG_CXX],
527 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
528AC_PROVIDE_IFELSE([AC_PROG_OBJC],
529 [_AM_DEPENDENCIES([OBJC])],
530 [m4_define([AC_PROG_OBJC],
531 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
532AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
533 [_AM_DEPENDENCIES([OBJCXX])],
534 [m4_define([AC_PROG_OBJCXX],
535 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
536])
537AC_REQUIRE([AM_SILENT_RULES])dnl
538dnl The testsuite driver may need to know about EXEEXT, so add the
539dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
540dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
541AC_CONFIG_COMMANDS_PRE(dnl
542[m4_provide_if([_AM_COMPILER_EXEEXT],
543 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
544
545# POSIX will say in a future version that running "rm -f" with no argument
546# is OK; and we want to be able to make that assumption in our Makefile
547# recipes. So use an aggressive probe to check that the usage we want is
548# actually supported "in the wild" to an acceptable degree.
549# See automake bug#10828.
550# To make any issue more visible, cause the running configure to be aborted
551# by default if the 'rm' program in use doesn't match our expectations; the
552# user can still override this though.
553if rm -f && rm -fr && rm -rf; then : OK; else
554 cat >&2 <<'END'
555Oops!
556
557Your 'rm' program seems unable to run without file operands specified
558on the command line, even when the '-f' option is present. This is contrary
559to the behaviour of most rm programs out there, and not conforming with
560the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
561
562Please tell [email protected] about your system, including the value
563of your $PATH and any error possibly output before this message. This
564can help us improve future automake versions.
565
566END
567 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
568 echo 'Configuration will proceed anyway, since you have set the' >&2
569 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
570 echo >&2
571 else
572 cat >&2 <<'END'
573Aborting the configuration process, to ensure you take notice of the issue.
574
575You can download and install GNU coreutils to get an 'rm' implementation
576that behaves properly: <https://www.gnu.org/software/coreutils/>.
577
578If you want to complete the configuration process using your problematic
579'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
580to "yes", and re-run configure.
581
582END
583 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
584 fi
585fi
586dnl The trailing newline in this macro's definition is deliberate, for
587dnl backward compatibility and to allow trailing 'dnl'-style comments
588dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
589])
590
591dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
592dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
593dnl mangled by Autoconf and run in a shell conditional statement.
594m4_define([_AC_COMPILER_EXEEXT],
595m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
596
597# When config.status generates a header, we must update the stamp-h file.
598# This file resides in the same directory as the config header
599# that is generated. The stamp files are numbered to have different names.
600
601# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
602# loop where config.status creates the headers, so we can generate
603# our stamp files there.
604AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
605[# Compute $1's index in $config_headers.
606_am_arg=$1
607_am_stamp_count=1
608for _am_header in $config_headers :; do
609 case $_am_header in
610 $_am_arg | $_am_arg:* )
611 break ;;
612 * )
613 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
614 esac
615done
616echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
617
618# Copyright (C) 2001-2018 Free Software Foundation, Inc.
619#
620# This file is free software; the Free Software Foundation
621# gives unlimited permission to copy and/or distribute it,
622# with or without modifications, as long as this notice is preserved.
623
624# AM_PROG_INSTALL_SH
625# ------------------
626# Define $install_sh.
627AC_DEFUN([AM_PROG_INSTALL_SH],
628[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
629if test x"${install_sh+set}" != xset; then
630 case $am_aux_dir in
631 *\ * | *\ *)
632 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
633 *)
634 install_sh="\${SHELL} $am_aux_dir/install-sh"
635 esac
636fi
637AC_SUBST([install_sh])])
638
639# Copyright (C) 2003-2018 Free Software Foundation, Inc.
640#
641# This file is free software; the Free Software Foundation
642# gives unlimited permission to copy and/or distribute it,
643# with or without modifications, as long as this notice is preserved.
644
645# Check whether the underlying file-system supports filenames
646# with a leading dot. For instance MS-DOS doesn't.
647AC_DEFUN([AM_SET_LEADING_DOT],
648[rm -rf .tst 2>/dev/null
649mkdir .tst 2>/dev/null
650if test -d .tst; then
651 am__leading_dot=.
652else
653 am__leading_dot=_
654fi
655rmdir .tst 2>/dev/null
656AC_SUBST([am__leading_dot])])
657
658# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
659# From Jim Meyering
660
661# Copyright (C) 1996-2018 Free Software Foundation, Inc.
662#
663# This file is free software; the Free Software Foundation
664# gives unlimited permission to copy and/or distribute it,
665# with or without modifications, as long as this notice is preserved.
666
667# AM_MAINTAINER_MODE([DEFAULT-MODE])
668# ----------------------------------
669# Control maintainer-specific portions of Makefiles.
670# Default is to disable them, unless 'enable' is passed literally.
671# For symmetry, 'disable' may be passed as well. Anyway, the user
672# can override the default with the --enable/--disable switch.
673AC_DEFUN([AM_MAINTAINER_MODE],
674[m4_case(m4_default([$1], [disable]),
675 [enable], [m4_define([am_maintainer_other], [disable])],
676 [disable], [m4_define([am_maintainer_other], [enable])],
677 [m4_define([am_maintainer_other], [enable])
678 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
679AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
680 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
681 AC_ARG_ENABLE([maintainer-mode],
682 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
683 am_maintainer_other[ make rules and dependencies not useful
684 (and sometimes confusing) to the casual installer])],
685 [USE_MAINTAINER_MODE=$enableval],
686 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
687 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
688 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
689 MAINT=$MAINTAINER_MODE_TRUE
690 AC_SUBST([MAINT])dnl
691]
692)
693
694# Check to see how 'make' treats includes. -*- Autoconf -*-
695
696# Copyright (C) 2001-2018 Free Software Foundation, Inc.
697#
698# This file is free software; the Free Software Foundation
699# gives unlimited permission to copy and/or distribute it,
700# with or without modifications, as long as this notice is preserved.
701
702# AM_MAKE_INCLUDE()
703# -----------------
704# Check whether make has an 'include' directive that can support all
705# the idioms we need for our automatic dependency tracking code.
706AC_DEFUN([AM_MAKE_INCLUDE],
707[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
708cat > confinc.mk << 'END'
709am__doit:
710 @echo this is the am__doit target >confinc.out
711.PHONY: am__doit
712END
713am__include="#"
714am__quote=
715# BSD make does it like this.
716echo '.include "confinc.mk" # ignored' > confmf.BSD
717# Other make implementations (GNU, Solaris 10, AIX) do it like this.
718echo 'include confinc.mk # ignored' > confmf.GNU
719_am_result=no
720for s in GNU BSD; do
721 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
722 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
723 ['0:this is the am__doit target'],
724 [AS_CASE([$s],
725 [BSD], [am__include='.include' am__quote='"'],
726 [am__include='include' am__quote=''])])
727 if test "$am__include" != "#"; then
728 _am_result="yes ($s style)"
729 break
730 fi
731done
732rm -f confinc.* confmf.*
733AC_MSG_RESULT([${_am_result}])
734AC_SUBST([am__include])])
735AC_SUBST([am__quote])])
736
737# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
738
739# Copyright (C) 1997-2018 Free Software Foundation, Inc.
740#
741# This file is free software; the Free Software Foundation
742# gives unlimited permission to copy and/or distribute it,
743# with or without modifications, as long as this notice is preserved.
744
745# AM_MISSING_PROG(NAME, PROGRAM)
746# ------------------------------
747AC_DEFUN([AM_MISSING_PROG],
748[AC_REQUIRE([AM_MISSING_HAS_RUN])
749$1=${$1-"${am_missing_run}$2"}
750AC_SUBST($1)])
751
752# AM_MISSING_HAS_RUN
753# ------------------
754# Define MISSING if not defined so far and test if it is modern enough.
755# If it is, set am_missing_run to use it, otherwise, to nothing.
756AC_DEFUN([AM_MISSING_HAS_RUN],
757[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
758AC_REQUIRE_AUX_FILE([missing])dnl
759if test x"${MISSING+set}" != xset; then
760 case $am_aux_dir in
761 *\ * | *\ *)
762 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
763 *)
764 MISSING="\${SHELL} $am_aux_dir/missing" ;;
765 esac
766fi
767# Use eval to expand $SHELL
768if eval "$MISSING --is-lightweight"; then
769 am_missing_run="$MISSING "
770else
771 am_missing_run=
772 AC_MSG_WARN(['missing' script is too old or missing])
773fi
774])
775
776# Helper functions for option handling. -*- Autoconf -*-
777
778# Copyright (C) 2001-2018 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_MANGLE_OPTION(NAME)
785# -----------------------
786AC_DEFUN([_AM_MANGLE_OPTION],
787[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
788
789# _AM_SET_OPTION(NAME)
790# --------------------
791# Set option NAME. Presently that only means defining a flag for this option.
792AC_DEFUN([_AM_SET_OPTION],
793[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
794
795# _AM_SET_OPTIONS(OPTIONS)
796# ------------------------
797# OPTIONS is a space-separated list of Automake options.
798AC_DEFUN([_AM_SET_OPTIONS],
799[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
800
801# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
802# -------------------------------------------
803# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
804AC_DEFUN([_AM_IF_OPTION],
805[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
806
807# Copyright (C) 1999-2018 Free Software Foundation, Inc.
808#
809# This file is free software; the Free Software Foundation
810# gives unlimited permission to copy and/or distribute it,
811# with or without modifications, as long as this notice is preserved.
812
813# _AM_PROG_CC_C_O
814# ---------------
815# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
816# to automatically call this.
817AC_DEFUN([_AM_PROG_CC_C_O],
818[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
819AC_REQUIRE_AUX_FILE([compile])dnl
820AC_LANG_PUSH([C])dnl
821AC_CACHE_CHECK(
822 [whether $CC understands -c and -o together],
823 [am_cv_prog_cc_c_o],
824 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
825 # Make sure it works both with $CC and with simple cc.
826 # Following AC_PROG_CC_C_O, we do the test twice because some
827 # compilers refuse to overwrite an existing .o file with -o,
828 # though they will create one.
829 am_cv_prog_cc_c_o=yes
830 for am_i in 1 2; do
831 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
832 && test -f conftest2.$ac_objext; then
833 : OK
834 else
835 am_cv_prog_cc_c_o=no
836 break
837 fi
838 done
839 rm -f core conftest*
840 unset am_i])
841if test "$am_cv_prog_cc_c_o" != yes; then
842 # Losing compiler, so override with the script.
843 # FIXME: It is wrong to rewrite CC.
844 # But if we don't then we get into trouble of one sort or another.
845 # A longer-term fix would be to have automake use am__CC in this case,
846 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
847 CC="$am_aux_dir/compile $CC"
848fi
849AC_LANG_POP([C])])
850
851# For backward compatibility.
852AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
853
854# Copyright (C) 2001-2018 Free Software Foundation, Inc.
855#
856# This file is free software; the Free Software Foundation
857# gives unlimited permission to copy and/or distribute it,
858# with or without modifications, as long as this notice is preserved.
859
860# AM_RUN_LOG(COMMAND)
861# -------------------
862# Run COMMAND, save the exit status in ac_status, and log it.
863# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
864AC_DEFUN([AM_RUN_LOG],
865[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
866 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
867 ac_status=$?
868 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
869 (exit $ac_status); }])
870
871# Check to make sure that the build environment is sane. -*- Autoconf -*-
872
873# Copyright (C) 1996-2018 Free Software Foundation, Inc.
874#
875# This file is free software; the Free Software Foundation
876# gives unlimited permission to copy and/or distribute it,
877# with or without modifications, as long as this notice is preserved.
878
879# AM_SANITY_CHECK
880# ---------------
881AC_DEFUN([AM_SANITY_CHECK],
882[AC_MSG_CHECKING([whether build environment is sane])
883# Reject unsafe characters in $srcdir or the absolute working directory
884# name. Accept space and tab only in the latter.
885am_lf='
886'
887case `pwd` in
888 *[[\\\"\#\$\&\'\`$am_lf]]*)
889 AC_MSG_ERROR([unsafe absolute working directory name]);;
890esac
891case $srcdir in
892 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
893 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
894esac
895
896# Do 'set' in a subshell so we don't clobber the current shell's
897# arguments. Must try -L first in case configure is actually a
898# symlink; some systems play weird games with the mod time of symlinks
899# (eg FreeBSD returns the mod time of the symlink's containing
900# directory).
901if (
902 am_has_slept=no
903 for am_try in 1 2; do
904 echo "timestamp, slept: $am_has_slept" > conftest.file
905 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
906 if test "$[*]" = "X"; then
907 # -L didn't work.
908 set X `ls -t "$srcdir/configure" conftest.file`
909 fi
910 if test "$[*]" != "X $srcdir/configure conftest.file" \
911 && test "$[*]" != "X conftest.file $srcdir/configure"; then
912
913 # If neither matched, then we have a broken ls. This can happen
914 # if, for instance, CONFIG_SHELL is bash and it inherits a
915 # broken ls alias from the environment. This has actually
916 # happened. Such a system could not be considered "sane".
917 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
918 alias in your environment])
919 fi
920 if test "$[2]" = conftest.file || test $am_try -eq 2; then
921 break
922 fi
923 # Just in case.
924 sleep 1
925 am_has_slept=yes
926 done
927 test "$[2]" = conftest.file
928 )
929then
930 # Ok.
931 :
932else
933 AC_MSG_ERROR([newly created file is older than distributed files!
934Check your system clock])
935fi
936AC_MSG_RESULT([yes])
937# If we didn't sleep, we still need to ensure time stamps of config.status and
938# generated files are strictly newer.
939am_sleep_pid=
940if grep 'slept: no' conftest.file >/dev/null 2>&1; then
941 ( sleep 1 ) &
942 am_sleep_pid=$!
943fi
944AC_CONFIG_COMMANDS_PRE(
945 [AC_MSG_CHECKING([that generated files are newer than configure])
946 if test -n "$am_sleep_pid"; then
947 # Hide warnings about reused PIDs.
948 wait $am_sleep_pid 2>/dev/null
949 fi
950 AC_MSG_RESULT([done])])
951rm -f conftest.file
952])
953
954# Copyright (C) 2009-2018 Free Software Foundation, Inc.
955#
956# This file is free software; the Free Software Foundation
957# gives unlimited permission to copy and/or distribute it,
958# with or without modifications, as long as this notice is preserved.
959
960# AM_SILENT_RULES([DEFAULT])
961# --------------------------
962# Enable less verbose build rules; with the default set to DEFAULT
963# ("yes" being less verbose, "no" or empty being verbose).
964AC_DEFUN([AM_SILENT_RULES],
965[AC_ARG_ENABLE([silent-rules], [dnl
966AS_HELP_STRING(
967 [--enable-silent-rules],
968 [less verbose build output (undo: "make V=1")])
969AS_HELP_STRING(
970 [--disable-silent-rules],
971 [verbose build output (undo: "make V=0")])dnl
972])
973case $enable_silent_rules in @%:@ (((
974 yes) AM_DEFAULT_VERBOSITY=0;;
975 no) AM_DEFAULT_VERBOSITY=1;;
976 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
977esac
978dnl
979dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
980dnl do not support nested variable expansions.
981dnl See automake bug#9928 and bug#10237.
982am_make=${MAKE-make}
983AC_CACHE_CHECK([whether $am_make supports nested variables],
984 [am_cv_make_support_nested_variables],
985 [if AS_ECHO([['TRUE=$(BAR$(V))
986BAR0=false
987BAR1=true
988V=1
989am__doit:
990 @$(TRUE)
991.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
992 am_cv_make_support_nested_variables=yes
993else
994 am_cv_make_support_nested_variables=no
995fi])
996if test $am_cv_make_support_nested_variables = yes; then
997 dnl Using '$V' instead of '$(V)' breaks IRIX make.
998 AM_V='$(V)'
999 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1000else
1001 AM_V=$AM_DEFAULT_VERBOSITY
1002 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1003fi
1004AC_SUBST([AM_V])dnl
1005AM_SUBST_NOTMAKE([AM_V])dnl
1006AC_SUBST([AM_DEFAULT_V])dnl
1007AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1008AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1009AM_BACKSLASH='\'
1010AC_SUBST([AM_BACKSLASH])dnl
1011_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1012])
1013
1014# Copyright (C) 2001-2018 Free Software Foundation, Inc.
1015#
1016# This file is free software; the Free Software Foundation
1017# gives unlimited permission to copy and/or distribute it,
1018# with or without modifications, as long as this notice is preserved.
1019
1020# AM_PROG_INSTALL_STRIP
1021# ---------------------
1022# One issue with vendor 'install' (even GNU) is that you can't
1023# specify the program used to strip binaries. This is especially
1024# annoying in cross-compiling environments, where the build's strip
1025# is unlikely to handle the host's binaries.
1026# Fortunately install-sh will honor a STRIPPROG variable, so we
1027# always use install-sh in "make install-strip", and initialize
1028# STRIPPROG with the value of the STRIP variable (set by the user).
1029AC_DEFUN([AM_PROG_INSTALL_STRIP],
1030[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1031# Installed binaries are usually stripped using 'strip' when the user
1032# run "make install-strip". However 'strip' might not be the right
1033# tool to use in cross-compilation environments, therefore Automake
1034# will honor the 'STRIP' environment variable to overrule this program.
1035dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1036if test "$cross_compiling" != no; then
1037 AC_CHECK_TOOL([STRIP], [strip], :)
1038fi
1039INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1040AC_SUBST([INSTALL_STRIP_PROGRAM])])
1041
1042# Copyright (C) 2006-2018 Free Software Foundation, Inc.
1043#
1044# This file is free software; the Free Software Foundation
1045# gives unlimited permission to copy and/or distribute it,
1046# with or without modifications, as long as this notice is preserved.
1047
1048# _AM_SUBST_NOTMAKE(VARIABLE)
1049# ---------------------------
1050# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1051# This macro is traced by Automake.
1052AC_DEFUN([_AM_SUBST_NOTMAKE])
1053
1054# AM_SUBST_NOTMAKE(VARIABLE)
1055# --------------------------
1056# Public sister of _AM_SUBST_NOTMAKE.
1057AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1058
1059# Check how to create a tarball. -*- Autoconf -*-
1060
1061# Copyright (C) 2004-2018 Free Software Foundation, Inc.
1062#
1063# This file is free software; the Free Software Foundation
1064# gives unlimited permission to copy and/or distribute it,
1065# with or without modifications, as long as this notice is preserved.
1066
1067# _AM_PROG_TAR(FORMAT)
1068# --------------------
1069# Check how to create a tarball in format FORMAT.
1070# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1071#
1072# Substitute a variable $(am__tar) that is a command
1073# writing to stdout a FORMAT-tarball containing the directory
1074# $tardir.
1075# tardir=directory && $(am__tar) > result.tar
1076#
1077# Substitute a variable $(am__untar) that extract such
1078# a tarball read from stdin.
1079# $(am__untar) < result.tar
1080#
1081AC_DEFUN([_AM_PROG_TAR],
1082[# Always define AMTAR for backward compatibility. Yes, it's still used
1083# in the wild :-( We should find a proper way to deprecate it ...
1084AC_SUBST([AMTAR], ['$${TAR-tar}'])
1085
1086# We'll loop over all known methods to create a tar archive until one works.
1087_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1088
1089m4_if([$1], [v7],
1090 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1091
1092 [m4_case([$1],
1093 [ustar],
1094 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1095 # There is notably a 21 bits limit for the UID and the GID. In fact,
1096 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1097 # and bug#13588).
1098 am_max_uid=2097151 # 2^21 - 1
1099 am_max_gid=$am_max_uid
1100 # The $UID and $GID variables are not portable, so we need to resort
1101 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1102 # below are definitely unexpected, so allow the users to see them
1103 # (that is, avoid stderr redirection).
1104 am_uid=`id -u || echo unknown`
1105 am_gid=`id -g || echo unknown`
1106 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1107 if test $am_uid -le $am_max_uid; then
1108 AC_MSG_RESULT([yes])
1109 else
1110 AC_MSG_RESULT([no])
1111 _am_tools=none
1112 fi
1113 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1114 if test $am_gid -le $am_max_gid; then
1115 AC_MSG_RESULT([yes])
1116 else
1117 AC_MSG_RESULT([no])
1118 _am_tools=none
1119 fi],
1120
1121 [pax],
1122 [],
1123
1124 [m4_fatal([Unknown tar format])])
1125
1126 AC_MSG_CHECKING([how to create a $1 tar archive])
1127
1128 # Go ahead even if we have the value already cached. We do so because we
1129 # need to set the values for the 'am__tar' and 'am__untar' variables.
1130 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1131
1132 for _am_tool in $_am_tools; do
1133 case $_am_tool in
1134 gnutar)
1135 for _am_tar in tar gnutar gtar; do
1136 AM_RUN_LOG([$_am_tar --version]) && break
1137 done
1138 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1139 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1140 am__untar="$_am_tar -xf -"
1141 ;;
1142 plaintar)
1143 # Must skip GNU tar: if it does not support --format= it doesn't create
1144 # ustar tarball either.
1145 (tar --version) >/dev/null 2>&1 && continue
1146 am__tar='tar chf - "$$tardir"'
1147 am__tar_='tar chf - "$tardir"'
1148 am__untar='tar xf -'
1149 ;;
1150 pax)
1151 am__tar='pax -L -x $1 -w "$$tardir"'
1152 am__tar_='pax -L -x $1 -w "$tardir"'
1153 am__untar='pax -r'
1154 ;;
1155 cpio)
1156 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1157 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1158 am__untar='cpio -i -H $1 -d'
1159 ;;
1160 none)
1161 am__tar=false
1162 am__tar_=false
1163 am__untar=false
1164 ;;
1165 esac
1166
1167 # If the value was cached, stop now. We just wanted to have am__tar
1168 # and am__untar set.
1169 test -n "${am_cv_prog_tar_$1}" && break
1170
1171 # tar/untar a dummy directory, and stop if the command works.
1172 rm -rf conftest.dir
1173 mkdir conftest.dir
1174 echo GrepMe > conftest.dir/file
1175 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1176 rm -rf conftest.dir
1177 if test -s conftest.tar; then
1178 AM_RUN_LOG([$am__untar <conftest.tar])
1179 AM_RUN_LOG([cat conftest.dir/file])
1180 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1181 fi
1182 done
1183 rm -rf conftest.dir
1184
1185 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1186 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1187
1188AC_SUBST([am__tar])
1189AC_SUBST([am__untar])
1190]) # _AM_PROG_TAR
1191
1192m4_include([scripts/libtool.m4])
1193m4_include([scripts/ltoptions.m4])
1194m4_include([scripts/ltsugar.m4])
1195m4_include([scripts/ltversion.m4])
1196m4_include([scripts/lt~obsolete.m4])
注意: 瀏覽 TracBrowser 來幫助您使用儲存庫瀏覽器

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette