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Last change on this file since 860145 was 363f28, checked in by Frederik Heber <heber@…>, 8 years ago
Merge commit '404d2be35f6544290132fcbe8f79a4ff9c6584ad' as 'ThirdParty/JobMarket'
Property mode set to `100644`
File size: 48.8 KB

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1	# boost.m4: Locate Boost headers and libraries for autoconf-based projects.
2	# Copyright (C) 2007-2011, 2014 Benoit Sigoure <tsuna@lrde.epita.fr>
3	#
4	# This program is free software: you can redistribute it and/or modify
5	# it under the terms of the GNU General Public License as published by
6	# the Free Software Foundation, either version 3 of the License, or
7	# (at your option) any later version.
8	#
9	# Additional permission under section 7 of the GNU General Public
10	# License, version 3 ("GPLv3"):
11	#
12	# If you convey this file as part of a work that contains a
13	# configuration script generated by Autoconf, you may do so under
14	# terms of your choice.
15	#
16	# This program is distributed in the hope that it will be useful,
17	# but WITHOUT ANY WARRANTY; without even the implied warranty of
18	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	# GNU General Public License for more details.
20	#
21	# You should have received a copy of the GNU General Public License
22	# along with this program. If not, see <http://www.gnu.org/licenses/>.
23
24	m4_define([_BOOST_SERIAL], [m4_translit([
25	# serial 22
26	], [#
27	], [])])
28
29	# Original sources can be found at http://github.com/tsuna/boost.m4
30	# You can fetch the latest version of the script by doing:
31	# wget http://github.com/tsuna/boost.m4/raw/master/build-aux/boost.m4
32
33	# ------ #
34	# README #
35	# ------ #
36
37	# This file provides several macros to use the various Boost libraries.
38	# The first macro is BOOST_REQUIRE. It will simply check if it's possible to
39	# find the Boost headers of a given (optional) minimum version and it will
40	# define BOOST_CPPFLAGS accordingly. It will add an option --with-boost to
41	# your configure so that users can specify non standard locations.
42	# If the user's environment contains BOOST_ROOT and --with-boost was not
43	# specified, --with-boost=$BOOST_ROOT is implicitly used.
44	# For more README and documentation, go to http://github.com/tsuna/boost.m4
45	# Note: THESE MACROS ASSUME THAT YOU USE LIBTOOL. If you don't, don't worry,
46	# simply read the README, it will show you what to do step by step.
47
48	m4_pattern_forbid([^_?(BOOST\|Boost)_])
49
50
51	# _BOOST_SED_CPP(SED-PROGRAM, PROGRAM,
52	# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
53	# --------------------------------------------------------
54	# Same as AC_EGREP_CPP, but leave the result in conftest.i.
55	#
56	# SED-PROGRAM is not overquoted, as in AC_EGREP_CPP. It is expanded
57	# in double-quotes, so escape your double quotes.
58	#
59	# It could be useful to turn this into a macro which extracts the
60	# value of any macro.
61	m4_define([_BOOST_SED_CPP],
62	[AC_LANG_PUSH([C++])dnl
63	AC_LANG_PREPROC_REQUIRE()dnl
64	AC_REQUIRE([AC_PROG_SED])dnl
65	AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
66	AS_IF([dnl eval is necessary to expand ac_cpp.
67	dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
68	dnl Beware of Windows end-of-lines, for instance if we are running
69	dnl some Windows programs under Wine. In that case, boost/version.hpp
70	dnl is certainly using "\r\n", but the regular Unix shell will only
71	dnl strip `\n' with backquotes, not the `\r'. This results in
72	dnl boost_cv_lib_version='1_37\r' for instance, which breaks
73	dnl everything else.
74	dnl Cannot use 'dnl' after [$4] because a trailing dnl may break AC_CACHE_CHECK
75	(eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD \|
76	tr -d '\r' \|
77	$SED -n -e "$1" >conftest.i 2>&1],
78	[$3],
79	[$4])
80	rm -rf conftest*
81	AC_LANG_POP([C++])dnl
82	])# _BOOST_SED_CPP
83
84
85
86	# BOOST_REQUIRE([VERSION], [ACTION-IF-NOT-FOUND])
87	# -----------------------------------------------
88	# Look for Boost. If version is given, it must either be a literal of the form
89	# "X.Y.Z" where X, Y and Z are integers (the ".Z" part being optional) or a
90	# variable "$var".
91	# Defines the value BOOST_CPPFLAGS. This macro only checks for headers with
92	# the required version, it does not check for any of the Boost libraries.
93	# On # success, defines HAVE_BOOST. On failure, calls the optional
94	# ACTION-IF-NOT-FOUND action if one was supplied.
95	# Otherwise aborts with an error message.
96	AC_DEFUN([BOOST_REQUIRE],
97	[AC_REQUIRE([AC_PROG_CXX])dnl
98	AC_REQUIRE([AC_PROG_GREP])dnl
99	echo "$as_me: this is boost.m4[]_BOOST_SERIAL" >&AS_MESSAGE_LOG_FD
100	boost_save_IFS=$IFS
101	boost_version_req=$1
102	IFS=.
103	set x $boost_version_req 0 0 0
104	IFS=$boost_save_IFS
105	shift
106	boost_version_req=`expr "$[1]" '' 100000 + "$[2]" '' 100 + "$[3]"`
107	boost_version_req_string=$[1].$[2].$[3]
108	AC_ARG_WITH([boost],
109	[AS_HELP_STRING([--with-boost=DIR],
110	[prefix of Boost $1 @<:@guess@:>@])])dnl
111	AC_ARG_VAR([BOOST_ROOT],[Location of Boost installation])dnl
112	# If BOOST_ROOT is set and the user has not provided a value to
113	# --with-boost, then treat BOOST_ROOT as if it the user supplied it.
114	if test x"$BOOST_ROOT" != x; then
115	if test x"$with_boost" = x; then
116	AC_MSG_NOTICE([Detected BOOST_ROOT; continuing with --with-boost=$BOOST_ROOT])
117	with_boost=$BOOST_ROOT
118	else
119	AC_MSG_NOTICE([Detected BOOST_ROOT=$BOOST_ROOT, but overridden by --with-boost=$with_boost])
120	fi
121	fi
122	AC_SUBST([DISTCHECK_CONFIGURE_FLAGS],
123	["$DISTCHECK_CONFIGURE_FLAGS '--with-boost=$with_boost'"])dnl
124	boost_save_CPPFLAGS=$CPPFLAGS
125	AC_CACHE_CHECK([for Boost headers version >= $boost_version_req_string],
126	[boost_cv_inc_path],
127	[boost_cv_inc_path=no
128	AC_LANG_PUSH([C++])dnl
129	m4_pattern_allow([^BOOST_VERSION$])dnl
130	AC_LANG_CONFTEST([AC_LANG_PROGRAM([[#include <boost/version.hpp>
131	#if !defined BOOST_VERSION
132	# error BOOST_VERSION is not defined
133	#elif BOOST_VERSION < $boost_version_req
134	# error Boost headers version < $boost_version_req
135	#endif
136	]])])
137	# If the user provided a value to --with-boost, use it and only it.
138	case $with_boost in #(
139	''\|yes) set x '' /opt/local/include /usr/local/include /opt/include \
140	/usr/include C:/Boost/include;; #(
141	*) set x "$with_boost/include" "$with_boost";;
142	esac
143	shift
144	for boost_dir
145	do
146	# Without --layout=system, Boost (or at least some versions) installs
147	# itself in <prefix>/include/boost-<version>. This inner loop helps to
148	# find headers in such directories.
149	#
150	# Any ${boost_dir}/boost-x_xx directories are searched in reverse version
151	# order followed by ${boost_dir}. The final '.' is a sentinel for
152	# searching $boost_dir" itself. Entries are whitespace separated.
153	#
154	# I didn't indent this loop on purpose (to avoid over-indented code)
155	boost_layout_system_search_list=`cd "$boost_dir" 2>/dev/null \
156	&& ls -1 \| "${GREP}" '^boost-' \| sort -rn -t- -k2 \
157	&& echo .`
158	for boost_inc in $boost_layout_system_search_list
159	do
160	if test x"$boost_inc" != x.; then
161	boost_inc="$boost_dir/$boost_inc"
162	else
163	boost_inc="$boost_dir" # Uses sentinel in boost_layout_system_search_list
164	fi
165	if test x"$boost_inc" != x; then
166	# We are going to check whether the version of Boost installed
167	# in $boost_inc is usable by running a compilation that
168	# #includes it. But if we pass a -I/some/path in which Boost
169	# is not installed, the compiler will just skip this -I and
170	# use other locations (either from CPPFLAGS, or from its list
171	# of system include directories). As a result we would use
172	# header installed on the machine instead of the /some/path
173	# specified by the user. So in that precise case (trying
174	# $boost_inc), make sure the version.hpp exists.
175	#
176	# Use test -e as there can be symlinks.
177	test -e "$boost_inc/boost/version.hpp" \|\| continue
178	CPPFLAGS="$CPPFLAGS -I$boost_inc"
179	fi
180	AC_COMPILE_IFELSE([], [boost_cv_inc_path=yes], [boost_cv_version=no])
181	if test x"$boost_cv_inc_path" = xyes; then
182	if test x"$boost_inc" != x; then
183	boost_cv_inc_path=$boost_inc
184	fi
185	break 2
186	fi
187	done
188	done
189	AC_LANG_POP([C++])dnl
190	])
191	case $boost_cv_inc_path in #(
192	no)
193	boost_errmsg="cannot find Boost headers version >= $boost_version_req_string"
194	m4_if([$2], [], [AC_MSG_ERROR([$boost_errmsg])],
195	[AC_MSG_NOTICE([$boost_errmsg])])
196	$2
197	;;#(
198	yes)
199	BOOST_CPPFLAGS=
200	;;#(
201	*)
202	AC_SUBST([BOOST_CPPFLAGS], ["-I$boost_cv_inc_path"])dnl
203	;;
204	esac
205	if test x"$boost_cv_inc_path" != xno; then
206	AC_DEFINE([HAVE_BOOST], [1],
207	[Defined if the requested minimum BOOST version is satisfied])
208	AC_CACHE_CHECK([for Boost's header version],
209	[boost_cv_lib_version],
210	[m4_pattern_allow([^BOOST_LIB_VERSION$])dnl
211	_BOOST_SED_CPP([/^boost-lib-version = /{s///;s/\"//g;p;q;}],
212	[#include <boost/version.hpp>
213	boost-lib-version = BOOST_LIB_VERSION],
214	[boost_cv_lib_version=`cat conftest.i`])])
215	# e.g. "134" for 1_34_1 or "135" for 1_35
216	boost_major_version=`echo "$boost_cv_lib_version" \| sed 's/_//;s/_.*//'`
217	case $boost_major_version in #(
218	'' \| [[!0-9]])
219	AC_MSG_ERROR([invalid value: boost_major_version=$boost_major_version])
220	;;
221	esac
222	fi
223	CPPFLAGS=$boost_save_CPPFLAGS
224	])# BOOST_REQUIRE
225
226
227	# BOOST_STATIC()
228	# --------------
229	# Add the "--enable-static-boost" configure argument. If this argument is given
230	# on the command line, static versions of the libraries will be looked up.
231	AC_DEFUN([BOOST_STATIC],
232	[AC_ARG_ENABLE([static-boost],
233	[AS_HELP_STRING([--enable-static-boost],
234	[Prefer the static boost libraries over the shared ones [no]])],
235	[enable_static_boost=yes],
236	[enable_static_boost=no])])# BOOST_STATIC
237
238
239	# BOOST_FIND_HEADER([HEADER-NAME], [ACTION-IF-NOT-FOUND], [ACTION-IF-FOUND])
240	# --------------------------------------------------------------------------
241	# Wrapper around AC_CHECK_HEADER for Boost headers. Useful to check for
242	# some parts of the Boost library which are only made of headers and don't
243	# require linking (such as Boost.Foreach).
244	#
245	# Default ACTION-IF-NOT-FOUND: Fail with a fatal error unless Boost couldn't be
246	# found in the first place, in which case by default a notice is issued to the
247	# user. Presumably if we haven't died already it's because it's OK to not have
248	# Boost, which is why only a notice is issued instead of a hard error.
249	#
250	# Default ACTION-IF-FOUND: define the preprocessor symbol HAVE_<HEADER-NAME> in
251	# case of success # (where HEADER-NAME is written LIKE_THIS, e.g.,
252	# HAVE_BOOST_FOREACH_HPP).
253	AC_DEFUN([BOOST_FIND_HEADER],
254	[AC_REQUIRE([BOOST_REQUIRE])dnl
255	if test x"$boost_cv_inc_path" = xno; then
256	m4_default([$2], [AC_MSG_NOTICE([Boost not available, not searching for $1])])
257	else
258	AC_LANG_PUSH([C++])dnl
259	boost_save_CPPFLAGS=$CPPFLAGS
260	CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
261	AC_CHECK_HEADER([$1],
262	[m4_default([$3], [AC_DEFINE(AS_TR_CPP([HAVE_$1]), [1],
263	[Define to 1 if you have <$1>])])],
264	[m4_default([$2], [AC_MSG_ERROR([cannot find $1])])])
265	CPPFLAGS=$boost_save_CPPFLAGS
266	AC_LANG_POP([C++])dnl
267	fi
268	])# BOOST_FIND_HEADER
269
270
271	# BOOST_FIND_LIBS([COMPONENT-NAME], [CANDIDATE-LIB-NAMES],
272	# [PREFERRED-RT-OPT], [HEADER-NAME], [CXX-TEST],
273	# [CXX-PROLOGUE])
274	# --------------------------------------------------------------
275	# Look for the Boost library COMPONENT-NAME (e.g., `thread', for
276	# libboost_thread) under the possible CANDIDATE-LIB-NAMES (e.g.,
277	# "thread_win32 thread"). Check that HEADER-NAME works and check that
278	# libboost_LIB-NAME can link with the code CXX-TEST. The optional
279	# argument CXX-PROLOGUE can be used to include some C++ code before
280	# the `main' function.
281	#
282	# Invokes BOOST_FIND_HEADER([HEADER-NAME]) (see above).
283	#
284	# Boost libraries typically come compiled with several flavors (with different
285	# runtime options) so PREFERRED-RT-OPT is the preferred suffix. A suffix is one
286	# or more of the following letters: sgdpn (in that order). s = static
287	# runtime, d = debug build, g = debug/diagnostic runtime, p = STLPort build,
288	# n = (unsure) STLPort build without iostreams from STLPort (it looks like `n'
289	# must always be used along with `p'). Additionally, PREFERRED-RT-OPT can
290	# start with `mt-' to indicate that there is a preference for multi-thread
291	# builds. Some sample values for PREFERRED-RT-OPT: (nothing), mt, d, mt-d, gdp
292	# ... If you want to make sure you have a specific version of Boost
293	# (eg, >= 1.33) you must invoke BOOST_REQUIRE before this macro.
294	AC_DEFUN([BOOST_FIND_LIBS],
295	[AC_REQUIRE([BOOST_REQUIRE])dnl
296	AC_REQUIRE([_BOOST_FIND_COMPILER_TAG])dnl
297	AC_REQUIRE([BOOST_STATIC])dnl
298	AC_REQUIRE([_BOOST_GUESS_WHETHER_TO_USE_MT])dnl
299	if test x"$boost_cv_inc_path" = xno; then
300	AC_MSG_NOTICE([Boost not available, not searching for the Boost $1 library])
301	else
302	dnl The else branch is huge and wasn't intended on purpose.
303	AC_LANG_PUSH([C++])dnl
304	AS_VAR_PUSHDEF([Boost_lib], [boost_cv_lib_$1])dnl
305	AS_VAR_PUSHDEF([Boost_lib_LDFLAGS], [boost_cv_lib_$1_LDFLAGS])dnl
306	AS_VAR_PUSHDEF([Boost_lib_LDPATH], [boost_cv_lib_$1_LDPATH])dnl
307	AS_VAR_PUSHDEF([Boost_lib_LIBS], [boost_cv_lib_$1_LIBS])dnl
308	BOOST_FIND_HEADER([$4])
309	boost_save_CPPFLAGS=$CPPFLAGS
310	CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
311	AC_CACHE_CHECK([for the Boost $1 library], [Boost_lib],
312	[_BOOST_FIND_LIBS($@)])
313	case $Boost_lib in #(
314	(no) _AC_MSG_LOG_CONFTEST
315	AC_MSG_ERROR([cannot find the flags to link with Boost $1])
316	;;
317	esac
318	AC_SUBST(AS_TR_CPP([BOOST_$1_LDFLAGS]), [$Boost_lib_LDFLAGS])dnl
319	AC_SUBST(AS_TR_CPP([BOOST_$1_LDPATH]), [$Boost_lib_LDPATH])dnl
320	AC_SUBST([BOOST_LDPATH], [$Boost_lib_LDPATH])dnl
321	AC_SUBST(AS_TR_CPP([BOOST_$1_LIBS]), [$Boost_lib_LIBS])dnl
322	CPPFLAGS=$boost_save_CPPFLAGS
323	AS_VAR_POPDEF([Boost_lib])dnl
324	AS_VAR_POPDEF([Boost_lib_LDFLAGS])dnl
325	AS_VAR_POPDEF([Boost_lib_LDPATH])dnl
326	AS_VAR_POPDEF([Boost_lib_LIBS])dnl
327	AC_LANG_POP([C++])dnl
328	fi
329	])
330
331
332	# BOOST_FIND_LIB([LIB-NAME],
333	# [PREFERRED-RT-OPT], [HEADER-NAME], [CXX-TEST],
334	# [CXX-PROLOGUE])
335	# --------------------------------------------------------------
336	# Backward compatibility wrapper for BOOST_FIND_LIBS.
337	AC_DEFUN([BOOST_FIND_LIB],
338	[BOOST_FIND_LIBS([$1], $@)])
339
340
341	# _BOOST_FIND_LIBS([LIB-NAME], [CANDIDATE-LIB-NAMES],
342	# [PREFERRED-RT-OPT], [HEADER-NAME], [CXX-TEST],
343	# [CXX-PROLOGUE])
344	# --------------------------------------------------------------
345	# Real implementation of BOOST_FIND_LIBS: rely on these local macros:
346	# Boost_lib, Boost_lib_LDFLAGS, Boost_lib_LDPATH, Boost_lib_LIBS
347	#
348	# The algorithm is as follows: first look for a given library name
349	# according to the user's PREFERRED-RT-OPT. For each library name, we
350	# prefer to use the ones that carry the tag (toolset name). Each
351	# library is searched through the various standard paths were Boost is
352	# usually installed. If we can't find the standard variants, we try
353	# to enforce -mt (for instance on MacOSX, libboost_thread.dylib
354	# doesn't exist but there's -obviously- libboost_thread-mt.dylib).
355	AC_DEFUN([_BOOST_FIND_LIBS],
356	[Boost_lib=no
357	case "$3" in #(
358	(mt \| mt-) boost_mt=-mt; boost_rtopt=;; #(
359	(mt* \| mt-) boost_mt=-mt; boost_rtopt=`expr "X$3" : 'Xmt-$.*$'`;; #(
360	(*) boost_mt=; boost_rtopt=$3;;
361	esac
362	if test $enable_static_boost = yes; then
363	boost_rtopt="s$boost_rtopt"
364	fi
365	# Find the proper debug variant depending on what we've been asked to find.
366	case $boost_rtopt in #(
367	(d) boost_rt_d=$boost_rtopt;; #(
368	([[sgpn]]) # Insert the `d' at the right place (in between `sg' and `pn')
369	boost_rt_d=`echo "$boost_rtopt" \| sed 's/$sg$$pn$/\1\2/'`;; #(
370	(*) boost_rt_d='-d';;
371	esac
372	# If the PREFERRED-RT-OPT are not empty, prepend a `-'.
373	test -n "$boost_rtopt" && boost_rtopt="-$boost_rtopt"
374	$boost_guess_use_mt && boost_mt=-mt
375	# Look for the abs path the static archive.
376	# $libext is computed by Libtool but let's make sure it's non empty.
377	test -z "$libext" &&
378	AC_MSG_ERROR([the libext variable is empty, did you invoke Libtool?])
379	boost_save_ac_objext=$ac_objext
380	# Generate the test file.
381	AC_LANG_CONFTEST([AC_LANG_PROGRAM([#include <$4>
382	$6], [$5])])
383	dnl Optimization hacks: compiling C++ is slow, especially with Boost. What
384	dnl we're trying to do here is guess the right combination of link flags
385	dnl (LIBS / LDFLAGS) to use a given library. This can take several
386	dnl iterations before it succeeds and is thus very slow. So what we do
387	dnl instead is that we compile the code first (and thus get an object file,
388	dnl typically conftest.o). Then we try various combinations of link flags
389	dnl until we succeed to link conftest.o in an executable. The problem is
390	dnl that the various TRY_LINK / COMPILE_IFELSE macros of Autoconf always
391	dnl remove all the temporary files including conftest.o. So the trick here
392	dnl is to temporarily change the value of ac_objext so that conftest.o is
393	dnl preserved accross tests. This is obviously fragile and I will burn in
394	dnl hell for not respecting Autoconf's documented interfaces, but in the
395	dnl mean time, it optimizes the macro by a factor of 5 to 30.
396	dnl Another small optimization: the first argument of AC_COMPILE_IFELSE left
397	dnl empty because the test file is generated only once above (before we
398	dnl start the for loops).
399	AC_COMPILE_IFELSE([],
400	[ac_objext=do_not_rm_me_plz],
401	[AC_MSG_ERROR([cannot compile a test that uses Boost $1])])
402	ac_objext=$boost_save_ac_objext
403	boost_failed_libs=
404	# Don't bother to ident the following nested for loops, only the 2
405	# innermost ones matter.
406	for boost_lib_ in $2; do
407	for boost_tag_ in -$boost_cv_lib_tag ''; do
408	for boost_ver_ in -$boost_cv_lib_version ''; do
409	for boost_mt_ in $boost_mt -mt ''; do
410	for boost_rtopt_ in $boost_rtopt '' -d; do
411	for boost_lib in \
412	boost_$boost_lib_$boost_tag_$boost_mt_$boost_rtopt_$boost_ver_ \
413	boost_$boost_lib_$boost_tag_$boost_rtopt_$boost_ver_ \
414	boost_$boost_lib_$boost_tag_$boost_mt_$boost_ver_ \
415	boost_$boost_lib_$boost_tag_$boost_ver_
416	do
417	# Avoid testing twice the same lib
418	case $boost_failed_libs in #(
419	(@$boost_lib@) continue;;
420	esac
421	# If with_boost is empty, we'll search in /lib first, which is not quite
422	# right so instead we'll try to a location based on where the headers are.
423	boost_tmp_lib=$with_boost
424	test x"$with_boost" = x && boost_tmp_lib=${boost_cv_inc_path%/include}
425	for boost_ldpath in "$boost_tmp_lib/lib" '' \
426	/opt/local/lib* /usr/local/lib* /opt/lib* /usr/lib* \
427	"$with_boost" C:/Boost/lib /lib*
428	do
429	# Don't waste time with directories that don't exist.
430	if test x"$boost_ldpath" != x && test ! -e "$boost_ldpath"; then
431	continue
432	fi
433	boost_save_LDFLAGS=$LDFLAGS
434	# Are we looking for a static library?
435	case $boost_ldpath:$boost_rtopt_ in #(
436	(?:s) # Yes (Non empty boost_ldpath + s in rt opt)
437	Boost_lib_LIBS="$boost_ldpath/lib$boost_lib.$libext"
438	test -e "$Boost_lib_LIBS" \|\| continue;; #(
439	(*) # No: use -lboost_foo to find the shared library.
440	Boost_lib_LIBS="-l$boost_lib";;
441	esac
442	boost_save_LIBS=$LIBS
443	LIBS="$Boost_lib_LIBS $LIBS"
444	test x"$boost_ldpath" != x && LDFLAGS="$LDFLAGS -L$boost_ldpath"
445	dnl First argument of AC_LINK_IFELSE left empty because the test file is
446	dnl generated only once above (before we start the for loops).
447	_BOOST_AC_LINK_IFELSE([],
448	[Boost_lib=yes], [Boost_lib=no])
449	ac_objext=$boost_save_ac_objext
450	LDFLAGS=$boost_save_LDFLAGS
451	LIBS=$boost_save_LIBS
452	if test x"$Boost_lib" = xyes; then
453	# Check or used cached result of whether or not using -R or
454	# -rpath makes sense. Some implementations of ld, such as for
455	# Mac OSX, require -rpath but -R is the flag known to work on
456	# other systems. https://github.com/tsuna/boost.m4/issues/19
457	AC_CACHE_VAL([boost_cv_rpath_link_ldflag],
458	[case $boost_ldpath in
459	'') # Nothing to do.
460	boost_cv_rpath_link_ldflag=
461	boost_rpath_link_ldflag_found=yes;;
462	*)
463	for boost_cv_rpath_link_ldflag in -Wl,-R, -Wl,-rpath,; do
464	LDFLAGS="$boost_save_LDFLAGS -L$boost_ldpath $boost_cv_rpath_link_ldflag$boost_ldpath"
465	LIBS="$boost_save_LIBS $Boost_lib_LIBS"
466	_BOOST_AC_LINK_IFELSE([],
467	[boost_rpath_link_ldflag_found=yes
468	break],
469	[boost_rpath_link_ldflag_found=no])
470	done
471	;;
472	esac
473	AS_IF([test "x$boost_rpath_link_ldflag_found" != "xyes"],
474	[AC_MSG_ERROR([Unable to determine whether to use -R or -rpath])])
475	LDFLAGS=$boost_save_LDFLAGS
476	LIBS=$boost_save_LIBS
477	])
478	test x"$boost_ldpath" != x &&
479	Boost_lib_LDFLAGS="-L$boost_ldpath $boost_cv_rpath_link_ldflag$boost_ldpath"
480	Boost_lib_LDPATH="$boost_ldpath"
481	break 7
482	else
483	boost_failed_libs="$boost_failed_libs@$boost_lib@"
484	fi
485	done
486	done
487	done
488	done
489	done
490	done
491	done # boost_lib_
492	rm -f conftest.$ac_objext
493	])
494
495
496
497	# --------------------------------------- #
498	# Checks for the various Boost libraries. #
499	# --------------------------------------- #
500
501	# List of boost libraries: http://www.boost.org/libs/libraries.htm
502	# The page http://beta.boost.org/doc/libs is useful: it gives the first release
503	# version of each library (among other things).
504
505	# BOOST_DEFUN(LIBRARY, CODE)
506	# --------------------------
507	# Define BOOST_<LIBRARY-UPPERCASE> as a macro that runs CODE.
508	#
509	# Use indir to avoid the warning on underquoted macro name given to AC_DEFUN.
510	m4_define([BOOST_DEFUN],
511	[m4_indir([AC_DEFUN],
512	m4_toupper([BOOST_$1]),
513	[m4_pushdef([BOOST_Library], [$1])dnl
514	$2
515	m4_popdef([BOOST_Library])dnl
516	])
517	])
518
519
520	# BOOST_ANY()
521	# ------------
522	# Look for Boost.Any
523	BOOST_DEFUN([Any],
524	[BOOST_FIND_HEADER([boost/any.hpp])])
525
526
527	# BOOST_ARRAY()
528	# -------------
529	# Look for Boost.Array
530	BOOST_DEFUN([Array],
531	[BOOST_FIND_HEADER([boost/array.hpp])])
532
533
534	# BOOST_ASIO()
535	# ------------
536	# Look for Boost.Asio (new in Boost 1.35).
537	BOOST_DEFUN([Asio],
538	[AC_REQUIRE([BOOST_SYSTEM])dnl
539	BOOST_FIND_HEADER([boost/asio.hpp])])
540
541
542	# BOOST_BIND()
543	# ------------
544	# Look for Boost.Bind.
545	BOOST_DEFUN([Bind],
546	[BOOST_FIND_HEADER([boost/bind.hpp])])
547
548
549	# BOOST_CHRONO()
550	# --------------
551	# Look for Boost.Chrono.
552	BOOST_DEFUN([Chrono],
553	[# Do we have to check for Boost.System? This link-time dependency was
554	# added as of 1.35.0. If we have a version <1.35, we must not attempt to
555	# find Boost.System as it didn't exist by then.
556	if test $boost_major_version -ge 135; then
557	BOOST_SYSTEM([$1])
558	fi # end of the Boost.System check.
559	boost_filesystem_save_LIBS=$LIBS
560	boost_filesystem_save_LDFLAGS=$LDFLAGS
561	m4_pattern_allow([^BOOST_SYSTEM_(LIBS\|LDFLAGS)$])dnl
562	LIBS="$LIBS $BOOST_SYSTEM_LIBS"
563	LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
564	BOOST_FIND_LIB([chrono], [$1],
565	[boost/chrono.hpp],
566	[boost::chrono::thread_clock d;])
567	if test $enable_static_boost = yes && test $boost_major_version -ge 135; then
568	BOOST_FILESYSTEM_LIBS="$BOOST_FILESYSTEM_LIBS $BOOST_SYSTEM_LIBS"
569	fi
570	LIBS=$boost_filesystem_save_LIBS
571	LDFLAGS=$boost_filesystem_save_LDFLAGS
572	])# BOOST_CHRONO
573
574
575	# BOOST_CONVERSION()
576	# ------------------
577	# Look for Boost.Conversion (cast / lexical_cast)
578	BOOST_DEFUN([Conversion],
579	[BOOST_FIND_HEADER([boost/cast.hpp])
580	BOOST_FIND_HEADER([boost/lexical_cast.hpp])
581	])# BOOST_CONVERSION
582
583
584	# BOOST_CRC()
585	# -----------
586	# Look for Boost.CRC
587	BOOST_DEFUN([CRC],
588	[BOOST_FIND_HEADER([boost/crc.hpp])
589	])# BOOST_CRC
590
591
592	# BOOST_DATE_TIME([PREFERRED-RT-OPT])
593	# -----------------------------------
594	# Look for Boost.Date_Time. For the documentation of PREFERRED-RT-OPT, see the
595	# documentation of BOOST_FIND_LIB above.
596	BOOST_DEFUN([Date_Time],
597	[BOOST_FIND_LIB([date_time], [$1],
598	[boost/date_time/posix_time/posix_time.hpp],
599	[boost::posix_time::ptime t;])
600	])# BOOST_DATE_TIME
601
602
603	# BOOST_EXCEPTION()
604	# ------------
605	# Look for Boost.Exception
606	BOOST_DEFUN([Exception],
607	[BOOST_FIND_HEADER([boost/exception/all.hpp])])
608
609
610	# BOOST_FILESYSTEM([PREFERRED-RT-OPT])
611	# ------------------------------------
612	# Look for Boost.Filesystem. For the documentation of PREFERRED-RT-OPT, see
613	# the documentation of BOOST_FIND_LIB above.
614	# Do not check for boost/filesystem.hpp because this file was introduced in
615	# 1.34.
616	BOOST_DEFUN([Filesystem],
617	[# Do we have to check for Boost.System? This link-time dependency was
618	# added as of 1.35.0. If we have a version <1.35, we must not attempt to
619	# find Boost.System as it didn't exist by then.
620	if test $boost_major_version -ge 135; then
621	BOOST_SYSTEM([$1])
622	fi # end of the Boost.System check.
623	boost_filesystem_save_LIBS=$LIBS
624	boost_filesystem_save_LDFLAGS=$LDFLAGS
625	m4_pattern_allow([^BOOST_SYSTEM_(LIBS\|LDFLAGS)$])dnl
626	LIBS="$LIBS $BOOST_SYSTEM_LIBS"
627	LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
628	BOOST_FIND_LIB([filesystem], [$1],
629	[boost/filesystem/path.hpp], [boost::filesystem::path p;])
630	if test $enable_static_boost = yes && test $boost_major_version -ge 135; then
631	BOOST_FILESYSTEM_LIBS="$BOOST_FILESYSTEM_LIBS $BOOST_SYSTEM_LIBS"
632	fi
633	LIBS=$boost_filesystem_save_LIBS
634	LDFLAGS=$boost_filesystem_save_LDFLAGS
635	])# BOOST_FILESYSTEM
636
637
638	# BOOST_FLYWEIGHT()
639	# -----------------
640	# Look for Boost.Flyweight.
641	BOOST_DEFUN([Flyweight],
642	[dnl There's a hidden dependency on pthreads.
643	AC_REQUIRE([_BOOST_PTHREAD_FLAG])dnl
644	BOOST_FIND_HEADER([boost/flyweight.hpp])
645	AC_SUBST([BOOST_FLYWEIGHT_LIBS], [$boost_cv_pthread_flag])
646	])
647
648
649	# BOOST_FOREACH()
650	# ---------------
651	# Look for Boost.Foreach.
652	BOOST_DEFUN([Foreach],
653	[BOOST_FIND_HEADER([boost/foreach.hpp])])
654
655
656	# BOOST_FORMAT()
657	# --------------
658	# Look for Boost.Format.
659	# Note: we can't check for boost/format/format_fwd.hpp because the header isn't
660	# standalone. It can't be compiled because it triggers the following error:
661	# boost/format/detail/config_macros.hpp:88: error: 'locale' in namespace 'std'
662	# does not name a type
663	BOOST_DEFUN([Format],
664	[BOOST_FIND_HEADER([boost/format.hpp])])
665
666
667	# BOOST_FUNCTION()
668	# ----------------
669	# Look for Boost.Function
670	BOOST_DEFUN([Function],
671	[BOOST_FIND_HEADER([boost/function.hpp])])
672
673
674	# BOOST_GEOMETRY()
675	# ----------------
676	# Look for Boost.Geometry (new since 1.47.0).
677	BOOST_DEFUN([Geometry],
678	[BOOST_FIND_HEADER([boost/geometry.hpp])
679	])# BOOST_GEOMETRY
680
681
682	# BOOST_GRAPH([PREFERRED-RT-OPT])
683	# -------------------------------
684	# Look for Boost.Graphs. For the documentation of PREFERRED-RT-OPT, see the
685	# documentation of BOOST_FIND_LIB above.
686	BOOST_DEFUN([Graph],
687	[BOOST_FIND_LIB([graph], [$1],
688	[boost/graph/adjacency_list.hpp], [boost::adjacency_list<> g;])
689	])# BOOST_GRAPH
690
691
692	# BOOST_IOSTREAMS([PREFERRED-RT-OPT])
693	# -----------------------------------
694	# Look for Boost.IOStreams. For the documentation of PREFERRED-RT-OPT, see the
695	# documentation of BOOST_FIND_LIB above.
696	BOOST_DEFUN([IOStreams],
697	[BOOST_FIND_LIB([iostreams], [$1],
698	[boost/iostreams/device/file_descriptor.hpp],
699	[boost::iostreams::file_descriptor fd; fd.close();])
700	])# BOOST_IOSTREAMS
701
702
703	# BOOST_HASH()
704	# ------------
705	# Look for Boost.Functional/Hash
706	BOOST_DEFUN([Hash],
707	[BOOST_FIND_HEADER([boost/functional/hash.hpp])])
708
709
710	# BOOST_ITERATOR()
711	# ------------
712	# Look for Boost.Iterator
713	BOOST_DEFUN([Iterator],
714	[BOOST_FIND_HEADER([boost/iterator/iterator_adaptor.hpp])])
715
716
717	# BOOST_LAMBDA()
718	# --------------
719	# Look for Boost.Lambda
720	BOOST_DEFUN([Lambda],
721	[BOOST_FIND_HEADER([boost/lambda/lambda.hpp])])
722
723
724	# BOOST_LOG([PREFERRED-RT-OPT])
725	# -----------------------------
726	# Look for Boost.Log. For the documentation of PREFERRED-RT-OPT, see the
727	# documentation of BOOST_FIND_LIB above.
728	BOOST_DEFUN([Log],
729	[BOOST_FIND_LIB([log], [$1],
730	[boost/log/core/core.hpp],
731	[boost::log::attribute a; a.get_value();])
732	])# BOOST_LOG
733
734
735	# BOOST_LOG_SETUP([PREFERRED-RT-OPT])
736	# -----------------------------------
737	# Look for Boost.Log. For the documentation of PREFERRED-RT-OPT, see the
738	# documentation of BOOST_FIND_LIB above.
739	BOOST_DEFUN([Log_Setup],
740	[AC_REQUIRE([BOOST_LOG])dnl
741	BOOST_FIND_LIB([log_setup], [$1],
742	[boost/log/utility/setup/from_settings.hpp],
743	[boost::log::basic_settings<char> bs; bs.empty();])
744	])# BOOST_LOG_SETUP
745
746
747	# BOOST_MATH()
748	# ------------
749	# Look for Boost.Math
750	# TODO: This library isn't header-only but it comes in multiple different
751	# flavors that don't play well with BOOST_FIND_LIB (e.g, libboost_math_c99,
752	# libboost_math_c99f, libboost_math_c99l, libboost_math_tr1,
753	# libboost_math_tr1f, libboost_math_tr1l). This macro must be fixed to do the
754	# right thing anyway.
755	BOOST_DEFUN([Math],
756	[BOOST_FIND_HEADER([boost/math/special_functions.hpp])])
757
758
759	# BOOST_MPI([PREFERRED-RT-OPT])
760	# -------------------------------
761	# Look for Boost MPI. For the documentation of PREFERRED-RT-OPT, see the
762	# documentation of BOOST_FIND_LIB above. Uses MPICXX variable if it is
763	# set, otherwise tries CXX
764	#
765	BOOST_DEFUN([MPI],
766	[boost_save_CXX=${CXX}
767	boost_save_CXXCPP=${CXXCPP}
768	if test x"${MPICXX}" != x; then
769	CXX=${MPICXX}
770	CXXCPP="${MPICXX} -E"
771	fi
772	BOOST_FIND_LIB([mpi], [$1],
773	[boost/mpi.hpp],
774	[int argc = 0;
775	char **argv = 0;
776	boost::mpi::environment env(argc,argv);])
777	CXX=${boost_save_CXX}
778	CXXCPP=${boost_save_CXXCPP}
779	])# BOOST_MPI
780
781
782	# BOOST_MULTIARRAY()
783	# ------------------
784	# Look for Boost.MultiArray
785	BOOST_DEFUN([MultiArray],
786	[BOOST_FIND_HEADER([boost/multi_array.hpp])])
787
788
789	# BOOST_NUMERIC_UBLAS()
790	# --------------------------
791	# Look for Boost.NumericUblas (Basic Linear Algebra)
792	BOOST_DEFUN([Numeric_Ublas],
793	[BOOST_FIND_HEADER([boost/numeric/ublas/vector.hpp])
794	])# BOOST_NUMERIC_UBLAS
795
796
797	# BOOST_NUMERIC_CONVERSION()
798	# --------------------------
799	# Look for Boost.NumericConversion (policy-based numeric conversion)
800	BOOST_DEFUN([Numeric_Conversion],
801	[BOOST_FIND_HEADER([boost/numeric/conversion/converter.hpp])
802	])# BOOST_NUMERIC_CONVERSION
803
804
805	# BOOST_OPTIONAL()
806	# ----------------
807	# Look for Boost.Optional
808	BOOST_DEFUN([Optional],
809	[BOOST_FIND_HEADER([boost/optional.hpp])])
810
811
812	# BOOST_PREPROCESSOR()
813	# --------------------
814	# Look for Boost.Preprocessor
815	BOOST_DEFUN([Preprocessor],
816	[BOOST_FIND_HEADER([boost/preprocessor/repeat.hpp])])
817
818
819	# BOOST_PROPERTY_TREE([PREFERRED-RT-OPT])
820	# -----------------------------------------
821	# Look for Boost.Property_Tree. For the documentation of PREFERRED-RT-OPT,
822	# see the documentation of BOOST_FIND_LIB above.
823	BOOST_DEFUN([Property_Tree],
824	[BOOST_FIND_LIB([property_tree], [$1],
825	[boost/property_tree/ptree.hpp],
826	[boost::property_tree::ptree pt; boost::property_tree::read_xml d("test", pt);])
827	])# BOOST_PROPERTY_TREE
828
829
830	# BOOST_RANDOM()
831	# --------------------
832	# Look for Boost.Random
833	BOOST_DEFUN([Random],
834	[BOOST_FIND_HEADER([boost/random/random_number_generator.hpp])])
835
836
837	# BOOST_UNORDERED()
838	# -----------------
839	# Look for Boost.Unordered
840	BOOST_DEFUN([Unordered],
841	[BOOST_FIND_HEADER([boost/unordered_map.hpp])])
842
843
844	# BOOST_UUID()
845	# ------------
846	# Look for Boost.Uuid
847	BOOST_DEFUN([Uuid],
848	[BOOST_FIND_HEADER([boost/uuid/uuid.hpp])])
849
850
851	# BOOST_PROGRAM_OPTIONS([PREFERRED-RT-OPT])
852	# -----------------------------------------
853	# Look for Boost.Program_options. For the documentation of PREFERRED-RT-OPT,
854	# see the documentation of BOOST_FIND_LIB above.
855	BOOST_DEFUN([Program_Options],
856	[BOOST_FIND_LIB([program_options], [$1],
857	[boost/program_options.hpp],
858	[boost::program_options::options_description d("test");])
859	])# BOOST_PROGRAM_OPTIONS
860
861
862
863	# _BOOST_PYTHON_CONFIG(VARIABLE, FLAG)
864	# ------------------------------------
865	# Save VARIABLE, and define it via `python-config --FLAG`.
866	# Substitute BOOST_PYTHON_VARIABLE.
867	m4_define([_BOOST_PYTHON_CONFIG],
868	[AC_SUBST([BOOST_PYTHON_$1],
869	[`python-config --$2 2>/dev/null`])dnl
870	boost_python_save_$1=$$1
871	$1="$$1 $BOOST_PYTHON_$1"])
872
873
874	# BOOST_PYTHON([PREFERRED-RT-OPT])
875	# --------------------------------
876	# Look for Boost.Python. For the documentation of PREFERRED-RT-OPT,
877	# see the documentation of BOOST_FIND_LIB above.
878	BOOST_DEFUN([Python],
879	[_BOOST_PYTHON_CONFIG([CPPFLAGS], [includes])
880	_BOOST_PYTHON_CONFIG([LDFLAGS], [ldflags])
881	_BOOST_PYTHON_CONFIG([LIBS], [libs])
882	m4_pattern_allow([^BOOST_PYTHON_MODULE$])dnl
883	BOOST_FIND_LIBS([python], [python python3], [$1],
884	[boost/python.hpp],
885	[], [BOOST_PYTHON_MODULE(empty) {}])
886	CPPFLAGS=$boost_python_save_CPPFLAGS
887	LDFLAGS=$boost_python_save_LDFLAGS
888	LIBS=$boost_python_save_LIBS
889	])# BOOST_PYTHON
890
891
892	# BOOST_REF()
893	# -----------
894	# Look for Boost.Ref
895	BOOST_DEFUN([Ref],
896	[BOOST_FIND_HEADER([boost/ref.hpp])])
897
898
899	# BOOST_REGEX([PREFERRED-RT-OPT])
900	# -------------------------------
901	# Look for Boost.Regex. For the documentation of PREFERRED-RT-OPT, see the
902	# documentation of BOOST_FIND_LIB above.
903	BOOST_DEFUN([Regex],
904	[BOOST_FIND_LIB([regex], [$1],
905	[boost/regex.hpp],
906	[boost::regex exp("*"); boost::regex_match("foo", exp);])
907	])# BOOST_REGEX
908
909
910	# BOOST_SERIALIZATION([PREFERRED-RT-OPT])
911	# ---------------------------------------
912	# Look for Boost.Serialization. For the documentation of PREFERRED-RT-OPT, see
913	# the documentation of BOOST_FIND_LIB above.
914	BOOST_DEFUN([Serialization],
915	[BOOST_FIND_LIB([serialization], [$1],
916	[boost/archive/text_oarchive.hpp],
917	[std::ostream* o = 0; // Cheap way to get an ostream...
918	boost::archive::text_oarchive t(*o);])
919	])# BOOST_SERIALIZATION
920
921
922	# BOOST_SIGNALS([PREFERRED-RT-OPT])
923	# ---------------------------------
924	# Look for Boost.Signals. For the documentation of PREFERRED-RT-OPT, see the
925	# documentation of BOOST_FIND_LIB above.
926	BOOST_DEFUN([Signals],
927	[BOOST_FIND_LIB([signals], [$1],
928	[boost/signal.hpp],
929	[boost::signal<void ()> s;])
930	])# BOOST_SIGNALS
931
932
933	# BOOST_SIGNALS2()
934	# ----------------
935	# Look for Boost.Signals2 (new since 1.39.0).
936	BOOST_DEFUN([Signals2],
937	[BOOST_FIND_HEADER([boost/signals2.hpp])
938	])# BOOST_SIGNALS2
939
940
941	# BOOST_SMART_PTR()
942	# -----------------
943	# Look for Boost.SmartPtr
944	BOOST_DEFUN([Smart_Ptr],
945	[BOOST_FIND_HEADER([boost/scoped_ptr.hpp])
946	BOOST_FIND_HEADER([boost/shared_ptr.hpp])
947	])
948
949
950	# BOOST_STATICASSERT()
951	# --------------------
952	# Look for Boost.StaticAssert
953	BOOST_DEFUN([StaticAssert],
954	[BOOST_FIND_HEADER([boost/static_assert.hpp])])
955
956
957	# BOOST_STRING_ALGO()
958	# -------------------
959	# Look for Boost.StringAlgo
960	BOOST_DEFUN([String_Algo],
961	[BOOST_FIND_HEADER([boost/algorithm/string.hpp])
962	])
963
964
965	# BOOST_SYSTEM([PREFERRED-RT-OPT])
966	# --------------------------------
967	# Look for Boost.System. For the documentation of PREFERRED-RT-OPT, see the
968	# documentation of BOOST_FIND_LIB above. This library was introduced in Boost
969	# 1.35.0.
970	BOOST_DEFUN([System],
971	[BOOST_FIND_LIB([system], [$1],
972	[boost/system/error_code.hpp],
973	[boost::system::error_code e; e.clear();])
974	])# BOOST_SYSTEM
975
976
977	# BOOST_TEST([PREFERRED-RT-OPT])
978	# ------------------------------
979	# Look for Boost.Test. For the documentation of PREFERRED-RT-OPT, see the
980	# documentation of BOOST_FIND_LIB above.
981	BOOST_DEFUN([Test],
982	[m4_pattern_allow([^BOOST_CHECK$])dnl
983	BOOST_FIND_LIB([unit_test_framework], [$1],
984	[boost/test/unit_test.hpp], [BOOST_CHECK(2 == 2);],
985	[using boost::unit_test::test_suite;
986	test_suite* init_unit_test_suite(int argc, char ** argv)
987	{ return NULL; }])
988	])# BOOST_TEST
989
990
991	# BOOST_THREAD([PREFERRED-RT-OPT])
992	# ---------------------------------
993	# Look for Boost.Thread. For the documentation of PREFERRED-RT-OPT, see the
994	# documentation of BOOST_FIND_LIB above.
995	BOOST_DEFUN([Thread],
996	[dnl Having the pthread flag is required at least on GCC3 where
997	dnl boost/thread.hpp would complain if we try to compile without
998	dnl -pthread on GNU/Linux.
999	AC_REQUIRE([_BOOST_PTHREAD_FLAG])dnl
1000	boost_thread_save_LIBS=$LIBS
1001	boost_thread_save_LDFLAGS=$LDFLAGS
1002	boost_thread_save_CPPFLAGS=$CPPFLAGS
1003	# Link-time dependency from thread to system was added as of 1.49.0.
1004	if test $boost_major_version -ge 149; then
1005	BOOST_SYSTEM([$1])
1006	fi # end of the Boost.System check.
1007	m4_pattern_allow([^BOOST_SYSTEM_(LIBS\|LDFLAGS)$])dnl
1008	LIBS="$LIBS $BOOST_SYSTEM_LIBS $boost_cv_pthread_flag"
1009	LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
1010	CPPFLAGS="$CPPFLAGS $boost_cv_pthread_flag"
1011
1012	# When compiling for the Windows platform, the threads library is named
1013	# differently.
1014	case $host_os in
1015	(mingw) boost_thread_lib_ext=_win32;;
1016	esac
1017	BOOST_FIND_LIBS([thread], [thread$boost_thread_lib_ext],
1018	[$1],
1019	[boost/thread.hpp], [boost::thread t; boost::mutex m;])
1020
1021	BOOST_THREAD_LIBS="$BOOST_THREAD_LIBS $BOOST_SYSTEM_LIBS $boost_cv_pthread_flag"
1022	BOOST_THREAD_LDFLAGS="$BOOST_SYSTEM_LDFLAGS"
1023	BOOST_CPPFLAGS="$BOOST_CPPFLAGS $boost_cv_pthread_flag"
1024	LIBS=$boost_thread_save_LIBS
1025	LDFLAGS=$boost_thread_save_LDFLAGS
1026	CPPFLAGS=$boost_thread_save_CPPFLAGS
1027	])# BOOST_THREAD
1028
1029	AU_ALIAS([BOOST_THREADS], [BOOST_THREAD])
1030
1031
1032	# BOOST_TOKENIZER()
1033	# -----------------
1034	# Look for Boost.Tokenizer
1035	BOOST_DEFUN([Tokenizer],
1036	[BOOST_FIND_HEADER([boost/tokenizer.hpp])])
1037
1038
1039	# BOOST_TRIBOOL()
1040	# ---------------
1041	# Look for Boost.Tribool
1042	BOOST_DEFUN([Tribool],
1043	[BOOST_FIND_HEADER([boost/logic/tribool_fwd.hpp])
1044	BOOST_FIND_HEADER([boost/logic/tribool.hpp])
1045	])
1046
1047
1048	# BOOST_TUPLE()
1049	# -------------
1050	# Look for Boost.Tuple
1051	BOOST_DEFUN([Tuple],
1052	[BOOST_FIND_HEADER([boost/tuple/tuple.hpp])])
1053
1054
1055	# BOOST_TYPETRAITS()
1056	# --------------------
1057	# Look for Boost.TypeTraits
1058	BOOST_DEFUN([TypeTraits],
1059	[BOOST_FIND_HEADER([boost/type_traits.hpp])])
1060
1061
1062	# BOOST_UTILITY()
1063	# ---------------
1064	# Look for Boost.Utility (noncopyable, result_of, base-from-member idiom,
1065	# etc.)
1066	BOOST_DEFUN([Utility],
1067	[BOOST_FIND_HEADER([boost/utility.hpp])])
1068
1069
1070	# BOOST_VARIANT()
1071	# ---------------
1072	# Look for Boost.Variant.
1073	BOOST_DEFUN([Variant],
1074	[BOOST_FIND_HEADER([boost/variant/variant_fwd.hpp])
1075	BOOST_FIND_HEADER([boost/variant.hpp])])
1076
1077
1078	# BOOST_POINTER_CONTAINER()
1079	# ------------------------
1080	# Look for Boost.PointerContainer
1081	BOOST_DEFUN([Pointer_Container],
1082	[BOOST_FIND_HEADER([boost/ptr_container/ptr_deque.hpp])
1083	BOOST_FIND_HEADER([boost/ptr_container/ptr_list.hpp])
1084	BOOST_FIND_HEADER([boost/ptr_container/ptr_vector.hpp])
1085	BOOST_FIND_HEADER([boost/ptr_container/ptr_array.hpp])
1086	BOOST_FIND_HEADER([boost/ptr_container/ptr_set.hpp])
1087	BOOST_FIND_HEADER([boost/ptr_container/ptr_map.hpp])
1088	])# BOOST_POINTER_CONTAINER
1089
1090
1091	# BOOST_WAVE([PREFERRED-RT-OPT])
1092	# ------------------------------
1093	# NOTE: If you intend to use Wave/Spirit with thread support, make sure you
1094	# call BOOST_THREAD first.
1095	# Look for Boost.Wave. For the documentation of PREFERRED-RT-OPT, see the
1096	# documentation of BOOST_FIND_LIB above.
1097	BOOST_DEFUN([Wave],
1098	[AC_REQUIRE([BOOST_FILESYSTEM])dnl
1099	AC_REQUIRE([BOOST_DATE_TIME])dnl
1100	boost_wave_save_LIBS=$LIBS
1101	boost_wave_save_LDFLAGS=$LDFLAGS
1102	m4_pattern_allow([^BOOST_((FILE)?SYSTEM\|DATE_TIME\|THREAD)_(LIBS\|LDFLAGS)$])dnl
1103	LIBS="$LIBS $BOOST_SYSTEM_LIBS $BOOST_FILESYSTEM_LIBS $BOOST_DATE_TIME_LIBS \
1104	$BOOST_THREAD_LIBS"
1105	LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS $BOOST_FILESYSTEM_LDFLAGS \
1106	$BOOST_DATE_TIME_LDFLAGS $BOOST_THREAD_LDFLAGS"
1107	BOOST_FIND_LIB([wave], [$1],
1108	[boost/wave.hpp],
1109	[boost::wave::token_id id; get_token_name(id);])
1110	LIBS=$boost_wave_save_LIBS
1111	LDFLAGS=$boost_wave_save_LDFLAGS
1112	])# BOOST_WAVE
1113
1114
1115	# BOOST_XPRESSIVE()
1116	# -----------------
1117	# Look for Boost.Xpressive (new since 1.36.0).
1118	BOOST_DEFUN([Xpressive],
1119	[BOOST_FIND_HEADER([boost/xpressive/xpressive.hpp])])
1120
1121
1122	# ----------------- #
1123	# Internal helpers. #
1124	# ----------------- #
1125
1126
1127	# _BOOST_PTHREAD_FLAG()
1128	# ---------------------
1129	# Internal helper for BOOST_THREAD. Computes boost_cv_pthread_flag
1130	# which must be used in CPPFLAGS and LIBS.
1131	#
1132	# Yes, we need to put the -pthread thing in CPPFLAGS because with GCC3,
1133	# boost/thread.hpp will trigger a #error if -pthread isn't used:
1134	# boost/config/requires_threads.hpp:47:5: #error "Compiler threading support
1135	# is not turned on. Please set the correct command line options for
1136	# threading: -pthread (Linux), -pthreads (Solaris) or -mthreads (Mingw32)"
1137	#
1138	# Based on ACX_PTHREAD: http://autoconf-archive.cryp.to/acx_pthread.html
1139	AC_DEFUN([_BOOST_PTHREAD_FLAG],
1140	[AC_REQUIRE([AC_PROG_CXX])dnl
1141	AC_REQUIRE([AC_CANONICAL_HOST])dnl
1142	AC_LANG_PUSH([C++])dnl
1143	AC_CACHE_CHECK([for the flags needed to use pthreads], [boost_cv_pthread_flag],
1144	[ boost_cv_pthread_flag=
1145	# The ordering is (sometimes) important. Some notes on the
1146	# individual items follow:
1147	# (none): in case threads are in libc; should be tried before -Kthread and
1148	# other compiler flags to prevent continual compiler warnings
1149	# -lpthreads: AIX (must check this before -lpthread)
1150	# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
1151	# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
1152	# -llthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
1153	# -pthread: GNU Linux/GCC (kernel threads), BSD/GCC (userland threads)
1154	# -pthreads: Solaris/GCC
1155	# -mthreads: MinGW32/GCC, Lynx/GCC
1156	# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
1157	# doesn't hurt to check since this sometimes defines pthreads too;
1158	# also defines -D_REENTRANT)
1159	# ... -mt is also the pthreads flag for HP/aCC
1160	# -lpthread: GNU Linux, etc.
1161	# --thread-safe: KAI C++
1162	case $host_os in #(
1163	solaris)
1164	# On Solaris (at least, for some versions), libc contains stubbed
1165	# (non-functional) versions of the pthreads routines, so link-based
1166	# tests will erroneously succeed. (We need to link with -pthreads/-mt/
1167	# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
1168	# a function called by this macro, so we could check for that, but
1169	# who knows whether they'll stub that too in a future libc.) So,
1170	# we'll just look for -pthreads and -lpthread first:
1171	boost_pthread_flags="-pthreads -lpthread -mt -pthread";; #(
1172	*)
1173	boost_pthread_flags="-lpthreads -Kthread -kthread -llthread -pthread \
1174	-pthreads -mthreads -lpthread --thread-safe -mt";;
1175	esac
1176	# Generate the test file.
1177	AC_LANG_CONFTEST([AC_LANG_PROGRAM([#include <pthread.h>],
1178	[pthread_t th; pthread_join(th, 0);
1179	pthread_attr_init(0); pthread_cleanup_push(0, 0);
1180	pthread_create(0,0,0,0); pthread_cleanup_pop(0);])])
1181	for boost_pthread_flag in '' $boost_pthread_flags; do
1182	boost_pthread_ok=false
1183	dnl Re-use the test file already generated.
1184	boost_pthreads__save_LIBS=$LIBS
1185	LIBS="$LIBS $boost_pthread_flag"
1186	AC_LINK_IFELSE([],
1187	[if grep ".*$boost_pthread_flag" conftest.err; then
1188	echo "This flag seems to have triggered warnings" >&AS_MESSAGE_LOG_FD
1189	else
1190	boost_pthread_ok=:; boost_cv_pthread_flag=$boost_pthread_flag
1191	fi])
1192	LIBS=$boost_pthreads__save_LIBS
1193	$boost_pthread_ok && break
1194	done
1195	])
1196	AC_LANG_POP([C++])dnl
1197	])# _BOOST_PTHREAD_FLAG
1198
1199
1200	# _BOOST_gcc_test(MAJOR, MINOR)
1201	# -----------------------------
1202	# Internal helper for _BOOST_FIND_COMPILER_TAG.
1203	m4_define([_BOOST_gcc_test],
1204	["defined __GNUC__ && __GNUC__ == $1 && __GNUC_MINOR__ == $2 && !defined __ICC @ gcc$1$2"])dnl
1205
1206	# _BOOST_mingw_test(MAJOR, MINOR)
1207	# -----------------------------
1208	# Internal helper for _BOOST_FIND_COMPILER_TAG.
1209	m4_define([_BOOST_mingw_test],
1210	["defined __GNUC__ && __GNUC__ == $1 && __GNUC_MINOR__ == $2 && !defined __ICC && \
1211	(defined WIN32 \|\| defined WINNT \|\| defined _WIN32 \|\| defined __WIN32 \
1212	\|\| defined __WIN32__ \|\| defined __WINNT \|\| defined __WINNT__) @ mgw$1$2"])dnl
1213
1214
1215	# _BOOST_FIND_COMPILER_TAG()
1216	# --------------------------
1217	# Internal. When Boost is installed without --layout=system, each library
1218	# filename will hold a suffix that encodes the compiler used during the
1219	# build. The Boost build system seems to call this a `tag'.
1220	AC_DEFUN([_BOOST_FIND_COMPILER_TAG],
1221	[AC_REQUIRE([AC_PROG_CXX])dnl
1222	AC_REQUIRE([AC_CANONICAL_HOST])dnl
1223	AC_CACHE_CHECK([for the toolset name used by Boost for $CXX], [boost_cv_lib_tag],
1224	[boost_cv_lib_tag=unknown
1225	if test x$boost_cv_inc_path != xno; then
1226	AC_LANG_PUSH([C++])dnl
1227	# The following tests are mostly inspired by boost/config/auto_link.hpp
1228	# The list is sorted to most recent/common to oldest compiler (in order
1229	# to increase the likelihood of finding the right compiler with the
1230	# least number of compilation attempt).
1231	# Beware that some tests are sensible to the order (for instance, we must
1232	# look for MinGW before looking for GCC3).
1233	# I used one compilation test per compiler with a #error to recognize
1234	# each compiler so that it works even when cross-compiling (let me know
1235	# if you know a better approach).
1236	# Known missing tags (known from Boost's tools/build/v2/tools/common.jam):
1237	# como, edg, kcc, bck, mp, sw, tru, xlc
1238	# I'm not sure about my test for `il' (be careful: Intel's ICC pre-defines
1239	# the same defines as GCC's).
1240	for i in \
1241	_BOOST_mingw_test(4,8) \
1242	_BOOST_gcc_test(4, 8) \
1243	_BOOST_mingw_test(4,7) \
1244	_BOOST_gcc_test(4, 7) \
1245	_BOOST_mingw_test(4,6) \
1246	_BOOST_gcc_test(4, 6) \
1247	_BOOST_mingw_test(4,5) \
1248	_BOOST_gcc_test(4, 5) \
1249	_BOOST_mingw_test(4,4) \
1250	_BOOST_gcc_test(4, 4) \
1251	_BOOST_mingw_test(4,3) \
1252	_BOOST_gcc_test(4, 3) \
1253	_BOOST_mingw_test(4,2) \
1254	_BOOST_gcc_test(4, 2) \
1255	_BOOST_mingw_test(4,1) \
1256	_BOOST_gcc_test(4, 1) \
1257	_BOOST_mingw_test(4,0) \
1258	_BOOST_gcc_test(4, 0) \
1259	"defined __GNUC__ && __GNUC__ == 3 && !defined __ICC \
1260	&& (defined WIN32 \|\| defined WINNT \|\| defined _WIN32 \|\| defined __WIN32 \
1261	\|\| defined __WIN32__ \|\| defined __WINNT \|\| defined __WINNT__) @ mgw" \
1262	_BOOST_gcc_test(3, 4) \
1263	_BOOST_gcc_test(3, 3) \
1264	"defined _MSC_VER && _MSC_VER >= 1500 @ vc90" \
1265	"defined _MSC_VER && _MSC_VER == 1400 @ vc80" \
1266	_BOOST_gcc_test(3, 2) \
1267	"defined _MSC_VER && _MSC_VER == 1310 @ vc71" \
1268	_BOOST_gcc_test(3, 1) \
1269	_BOOST_gcc_test(3, 0) \
1270	"defined __BORLANDC__ @ bcb" \
1271	"defined __ICC && (defined __unix \|\| defined __unix__) @ il" \
1272	"defined __ICL @ iw" \
1273	"defined _MSC_VER && _MSC_VER == 1300 @ vc7" \
1274	_BOOST_gcc_test(2, 95) \
1275	"defined __MWERKS__ && __MWERKS__ <= 0x32FF @ cw9" \
1276	"defined _MSC_VER && _MSC_VER < 1300 && !defined UNDER_CE @ vc6" \
1277	"defined _MSC_VER && _MSC_VER < 1300 && defined UNDER_CE @ evc4" \
1278	"defined __MWERKS__ && __MWERKS__ <= 0x31FF @ cw8"
1279	do
1280	boost_tag_test=`expr "X$i" : 'X$[[^@]]*$ @ '`
1281	boost_tag=`expr "X$i" : 'X[[^@]]* @ $.*$'`
1282	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1283	#if $boost_tag_test
1284	/* OK */
1285	#else
1286	# error $boost_tag_test
1287	#endif
1288	]])], [boost_cv_lib_tag=$boost_tag; break], [])
1289	done
1290	AC_LANG_POP([C++])dnl
1291	case $boost_cv_lib_tag in #(
1292	# Some newer (>= 1.35?) versions of Boost seem to only use "gcc" as opposed
1293	# to "gcc41" for instance.
1294	-gcc \| '-gcc ') :;; #( Don't re-add -gcc: it's already in there.
1295	gcc*)
1296	boost_tag_x=
1297	case $host_os in #(
1298	darwin*)
1299	if test $boost_major_version -ge 136; then
1300	# The `x' added in r46793 of Boost.
1301	boost_tag_x=x
1302	fi;;
1303	esac
1304	# We can specify multiple tags in this variable because it's used by
1305	# BOOST_FIND_LIB that does a `for tag in -$boost_cv_lib_tag' ...
1306	boost_cv_lib_tag="$boost_tag_x$boost_cv_lib_tag -${boost_tag_x}gcc"
1307	;; #(
1308	unknown)
1309	AC_MSG_WARN([[could not figure out which toolset name to use for $CXX]])
1310	boost_cv_lib_tag=
1311	;;
1312	esac
1313	fi])dnl end of AC_CACHE_CHECK
1314	])# _BOOST_FIND_COMPILER_TAG
1315
1316
1317	# _BOOST_GUESS_WHETHER_TO_USE_MT()
1318	# --------------------------------
1319	# Compile a small test to try to guess whether we should favor MT (Multi
1320	# Thread) flavors of Boost. Sets boost_guess_use_mt accordingly.
1321	AC_DEFUN([_BOOST_GUESS_WHETHER_TO_USE_MT],
1322	[# Check whether we do better use `mt' even though we weren't ask to.
1323	AC_LANG_PUSH([C++])dnl
1324	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1325	#if defined _REENTRANT \|\| defined _MT \|\| defined __MT__
1326	/* use -mt */
1327	#else
1328	# error MT not needed
1329	#endif
1330	]])], [boost_guess_use_mt=:], [boost_guess_use_mt=false])
1331	AC_LANG_POP([C++])dnl
1332	])
1333
1334	# _BOOST_AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1335	# -------------------------------------------------------------------
1336	# Fork of _AC_LINK_IFELSE that preserves conftest.o across calls. Fragile,
1337	# will break when Autoconf changes its internals. Requires that you manually
1338	# rm -f conftest.$ac_objext in between to really different tests, otherwise
1339	# you will try to link a conftest.o left behind by a previous test.
1340	# Used to aggressively optimize BOOST_FIND_LIB (see the big comment in this
1341	# macro).
1342	#
1343	# Don't use "break" in the actions, as it would short-circuit some code
1344	# this macro runs after the actions.
1345	m4_define([_BOOST_AC_LINK_IFELSE],
1346	[m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
1347	rm -f conftest$ac_exeext
1348	boost_save_ac_ext=$ac_ext
1349	boost_use_source=:
1350	# If we already have a .o, re-use it. We change $ac_ext so that $ac_link
1351	# tries to link the existing object file instead of compiling from source.
1352	test -f conftest.$ac_objext && ac_ext=$ac_objext && boost_use_source=false &&
1353	_AS_ECHO_LOG([re-using the existing conftest.$ac_objext])
1354	AS_IF([_AC_DO_STDERR($ac_link) && {
1355	test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" \|\|
1356	test ! -s conftest.err
1357	} && test -s conftest$ac_exeext && {
1358	test "$cross_compiling" = yes \|\|
1359	$as_executable_p conftest$ac_exeext
1360	dnl FIXME: use AS_TEST_X instead when 2.61 is widespread enough.
1361	}],
1362	[$2],
1363	[if $boost_use_source; then
1364	_AC_MSG_LOG_CONFTEST
1365	fi
1366	$3])
1367	ac_objext=$boost_save_ac_objext
1368	ac_ext=$boost_save_ac_ext
1369	dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
1370	dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
1371	dnl as it would interfere with the next link command.
1372	rm -f core conftest.err conftest_ipa8_conftest.oo \
1373	conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
1374	])# _BOOST_AC_LINK_IFELSE
1375
1376	# Local Variables:
1377	# mode: autoconf
1378	# End:

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