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Last change on this file since 4464ef was 4da4de, checked in by Frederik Heber <heber@…>, 10 years ago

FIX: Added Boost::MultiIndexContainer check for MemDebug.

this requires CodePatterns 1.2.10 and allows finally enable-debug compilation with Ubuntu 14.04.

Property mode set to 100644

File size: 49.4 KB

Line
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_BIMAP()
543	# ------------
544	# Look for Boost.Bimap
545	BOOST_DEFUN([Bimap],
546	[BOOST_FIND_HEADER([boost/bimap.hpp])])
547
548
549	# BOOST_BIND()
550	# ------------
551	# Look for Boost.Bind.
552	BOOST_DEFUN([Bind],
553	[BOOST_FIND_HEADER([boost/bind.hpp])])
554
555
556	# BOOST_CAST()
557	# ------------
558	# Look for Boost.Cast
559	BOOST_DEFUN([Cast],
560	[BOOST_FIND_HEADER([boost/cast.hpp])])
561
562
563	# BOOST_CHRONO()
564	# --------------
565	# Look for Boost.Chrono.
566	BOOST_DEFUN([Chrono],
567	[# Do we have to check for Boost.System? This link-time dependency was
568	# added as of 1.35.0. If we have a version <1.35, we must not attempt to
569	# find Boost.System as it didn't exist by then.
570	if test $boost_major_version -ge 135; then
571	BOOST_SYSTEM([$1])
572	fi # end of the Boost.System check.
573	boost_filesystem_save_LIBS=$LIBS
574	boost_filesystem_save_LDFLAGS=$LDFLAGS
575	m4_pattern_allow([^BOOST_SYSTEM_(LIBS\|LDFLAGS)$])dnl
576	LIBS="$LIBS $BOOST_SYSTEM_LIBS"
577	LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
578	BOOST_FIND_LIB([chrono], [$1],
579	[boost/chrono.hpp],
580	[boost::chrono::thread_clock d;])
581	if test $enable_static_boost = yes && test $boost_major_version -ge 135; then
582	BOOST_FILESYSTEM_LIBS="$BOOST_FILESYSTEM_LIBS $BOOST_SYSTEM_LIBS"
583	fi
584	LIBS=$boost_filesystem_save_LIBS
585	LDFLAGS=$boost_filesystem_save_LDFLAGS
586	])# BOOST_CHRONO
587
588
589	# BOOST_CONVERSION()
590	# ------------------
591	# Look for Boost.Conversion (cast / lexical_cast)
592	BOOST_DEFUN([Conversion],
593	[BOOST_FIND_HEADER([boost/cast.hpp])
594	BOOST_FIND_HEADER([boost/lexical_cast.hpp])
595	])# BOOST_CONVERSION
596
597
598	# BOOST_CRC()
599	# -----------
600	# Look for Boost.CRC
601	BOOST_DEFUN([CRC],
602	[BOOST_FIND_HEADER([boost/crc.hpp])
603	])# BOOST_CRC
604
605
606	# BOOST_DATE_TIME([PREFERRED-RT-OPT])
607	# -----------------------------------
608	# Look for Boost.Date_Time. For the documentation of PREFERRED-RT-OPT, see the
609	# documentation of BOOST_FIND_LIB above.
610	BOOST_DEFUN([Date_Time],
611	[BOOST_FIND_LIB([date_time], [$1],
612	[boost/date_time/posix_time/posix_time.hpp],
613	[boost::posix_time::ptime t;])
614	])# BOOST_DATE_TIME
615
616
617	# BOOST_EXCEPTION()
618	# ------------
619	# Look for Boost.Exception
620	BOOST_DEFUN([Exception],
621	[BOOST_FIND_HEADER([boost/exception/all.hpp])])
622
623
624	# BOOST_FILESYSTEM([PREFERRED-RT-OPT])
625	# ------------------------------------
626	# Look for Boost.Filesystem. For the documentation of PREFERRED-RT-OPT, see
627	# the documentation of BOOST_FIND_LIB above.
628	# Do not check for boost/filesystem.hpp because this file was introduced in
629	# 1.34.
630	BOOST_DEFUN([Filesystem],
631	[# Do we have to check for Boost.System? This link-time dependency was
632	# added as of 1.35.0. If we have a version <1.35, we must not attempt to
633	# find Boost.System as it didn't exist by then.
634	if test $boost_major_version -ge 135; then
635	BOOST_SYSTEM([$1])
636	fi # end of the Boost.System check.
637	boost_filesystem_save_LIBS=$LIBS
638	boost_filesystem_save_LDFLAGS=$LDFLAGS
639	m4_pattern_allow([^BOOST_SYSTEM_(LIBS\|LDFLAGS)$])dnl
640	LIBS="$LIBS $BOOST_SYSTEM_LIBS"
641	LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
642	BOOST_FIND_LIB([filesystem], [$1],
643	[boost/filesystem/path.hpp], [boost::filesystem::path p;])
644	if test $enable_static_boost = yes && test $boost_major_version -ge 135; then
645	BOOST_FILESYSTEM_LIBS="$BOOST_FILESYSTEM_LIBS $BOOST_SYSTEM_LIBS"
646	fi
647	LIBS=$boost_filesystem_save_LIBS
648	LDFLAGS=$boost_filesystem_save_LDFLAGS
649	])# BOOST_FILESYSTEM
650
651
652	# BOOST_FUSION()
653	# -----------------
654	# Look for Boost.Fusion
655	BOOST_DEFUN([Fusion],
656	[BOOST_FIND_HEADER([boost/fusion/sequence.hpp])])
657
658
659	# BOOST_FLYWEIGHT()
660	# -----------------
661	# Look for Boost.Flyweight.
662	BOOST_DEFUN([Flyweight],
663	[dnl There's a hidden dependency on pthreads.
664	AC_REQUIRE([_BOOST_PTHREAD_FLAG])dnl
665	BOOST_FIND_HEADER([boost/flyweight.hpp])
666	AC_SUBST([BOOST_FLYWEIGHT_LIBS], [$boost_cv_pthread_flag])
667	])
668
669
670	# BOOST_FOREACH()
671	# ---------------
672	# Look for Boost.Foreach.
673	BOOST_DEFUN([Foreach],
674	[BOOST_FIND_HEADER([boost/foreach.hpp])])
675
676
677	# BOOST_FORMAT()
678	# --------------
679	# Look for Boost.Format.
680	# Note: we can't check for boost/format/format_fwd.hpp because the header isn't
681	# standalone. It can't be compiled because it triggers the following error:
682	# boost/format/detail/config_macros.hpp:88: error: 'locale' in namespace 'std'
683	# does not name a type
684	BOOST_DEFUN([Format],
685	[BOOST_FIND_HEADER([boost/format.hpp])])
686
687
688	# BOOST_FUNCTION()
689	# ----------------
690	# Look for Boost.Function
691	BOOST_DEFUN([Function],
692	[BOOST_FIND_HEADER([boost/function.hpp])])
693
694
695	# BOOST_GEOMETRY()
696	# ----------------
697	# Look for Boost.Geometry (new since 1.47.0).
698	BOOST_DEFUN([Geometry],
699	[BOOST_FIND_HEADER([boost/geometry.hpp])
700	])# BOOST_GEOMETRY
701
702
703	# BOOST_GRAPH([PREFERRED-RT-OPT])
704	# -------------------------------
705	# Look for Boost.Graphs. For the documentation of PREFERRED-RT-OPT, see the
706	# documentation of BOOST_FIND_LIB above.
707	BOOST_DEFUN([Graph],
708	[BOOST_FIND_LIB([graph], [$1],
709	[boost/graph/adjacency_list.hpp], [boost::adjacency_list<> g;])
710	])# BOOST_GRAPH
711
712
713	# BOOST_IOSTREAMS([PREFERRED-RT-OPT])
714	# -----------------------------------
715	# Look for Boost.IOStreams. For the documentation of PREFERRED-RT-OPT, see the
716	# documentation of BOOST_FIND_LIB above.
717	BOOST_DEFUN([IOStreams],
718	[BOOST_FIND_LIB([iostreams], [$1],
719	[boost/iostreams/device/file_descriptor.hpp],
720	[boost::iostreams::file_descriptor fd; fd.close();])
721	])# BOOST_IOSTREAMS
722
723
724	# BOOST_HASH()
725	# ------------
726	# Look for Boost.Functional/Hash
727	BOOST_DEFUN([Hash],
728	[BOOST_FIND_HEADER([boost/functional/hash.hpp])])
729
730
731	# BOOST_ITERATOR()
732	# ------------
733	# Look for Boost.Iterator
734	BOOST_DEFUN([Iterator],
735	[BOOST_FIND_HEADER([boost/iterator/iterator_adaptor.hpp])])
736
737
738	# BOOST_LAMBDA()
739	# --------------
740	# Look for Boost.Lambda
741	BOOST_DEFUN([Lambda],
742	[BOOST_FIND_HEADER([boost/lambda/lambda.hpp])])
743
744
745	# BOOST_LOG([PREFERRED-RT-OPT])
746	# -----------------------------
747	# Look for Boost.Log. For the documentation of PREFERRED-RT-OPT, see the
748	# documentation of BOOST_FIND_LIB above.
749	BOOST_DEFUN([Log],
750	[BOOST_FIND_LIB([log], [$1],
751	[boost/log/core/core.hpp],
752	[boost::log::attribute a; a.get_value();])
753	])# BOOST_LOG
754
755
756	# BOOST_LOG_SETUP([PREFERRED-RT-OPT])
757	# -----------------------------------
758	# Look for Boost.Log. For the documentation of PREFERRED-RT-OPT, see the
759	# documentation of BOOST_FIND_LIB above.
760	BOOST_DEFUN([Log_Setup],
761	[AC_REQUIRE([BOOST_LOG])dnl
762	BOOST_FIND_LIB([log_setup], [$1],
763	[boost/log/utility/setup/from_settings.hpp],
764	[boost::log::basic_settings<char> bs; bs.empty();])
765	])# BOOST_LOG_SETUP
766
767
768	# BOOST_MATH()
769	# ------------
770	# Look for Boost.Math
771	# TODO: This library isn't header-only but it comes in multiple different
772	# flavors that don't play well with BOOST_FIND_LIB (e.g, libboost_math_c99,
773	# libboost_math_c99f, libboost_math_c99l, libboost_math_tr1,
774	# libboost_math_tr1f, libboost_math_tr1l). This macro must be fixed to do the
775	# right thing anyway.
776	BOOST_DEFUN([Math],
777	[BOOST_FIND_HEADER([boost/math/special_functions.hpp])])
778
779
780	# BOOST_MPI([PREFERRED-RT-OPT])
781	# -------------------------------
782	# Look for Boost MPI. For the documentation of PREFERRED-RT-OPT, see the
783	# documentation of BOOST_FIND_LIB above. Uses MPICXX variable if it is
784	# set, otherwise tries CXX
785	#
786	BOOST_DEFUN([MPI],
787	[boost_save_CXX=${CXX}
788	boost_save_CXXCPP=${CXXCPP}
789	if test x"${MPICXX}" != x; then
790	CXX=${MPICXX}
791	CXXCPP="${MPICXX} -E"
792	fi
793	BOOST_FIND_LIB([mpi], [$1],
794	[boost/mpi.hpp],
795	[int argc = 0;
796	char **argv = 0;
797	boost::mpi::environment env(argc,argv);])
798	CXX=${boost_save_CXX}
799	CXXCPP=${boost_save_CXXCPP}
800	])# BOOST_MPI
801
802
803	# BOOST_MPL()
804	# ------------------
805	# Look for Boost.MPL
806	BOOST_DEFUN([MPL],
807	[BOOST_FIND_HEADER([boost/mpl/for_each.hpp])])
808
809
810	# BOOST_MULTIARRAY()
811	# ------------------
812	# Look for Boost.MultiArray
813	BOOST_DEFUN([MultiArray],
814	[BOOST_FIND_HEADER([boost/multi_array.hpp])])
815
816	# BOOST_MULTIINDEXCCONTAINER()
817	# ------------------
818	# Look for Boost.MultiIndexContainer
819	BOOST_DEFUN([MultiIndexContainer],
820	[BOOST_FIND_HEADER([boost/multi_index_container.hpp])])
821
822
823	# BOOST_NUMERIC_UBLAS()
824	# --------------------------
825	# Look for Boost.NumericUblas (Basic Linear Algebra)
826	BOOST_DEFUN([Numeric_Ublas],
827	[BOOST_FIND_HEADER([boost/numeric/ublas/vector.hpp])
828	])# BOOST_NUMERIC_UBLAS
829
830
831	# BOOST_NUMERIC_CONVERSION()
832	# --------------------------
833	# Look for Boost.NumericConversion (policy-based numeric conversion)
834	BOOST_DEFUN([Numeric_Conversion],
835	[BOOST_FIND_HEADER([boost/numeric/conversion/converter.hpp])
836	])# BOOST_NUMERIC_CONVERSION
837
838
839	# BOOST_OPTIONAL()
840	# ----------------
841	# Look for Boost.Optional
842	BOOST_DEFUN([Optional],
843	[BOOST_FIND_HEADER([boost/optional.hpp])])
844
845
846	# BOOST_PREPROCESSOR()
847	# --------------------
848	# Look for Boost.Preprocessor
849	BOOST_DEFUN([Preprocessor],
850	[BOOST_FIND_HEADER([boost/preprocessor/repeat.hpp])])
851
852
853	# BOOST_PROPERTY_TREE([PREFERRED-RT-OPT])
854	# -----------------------------------------
855	# Look for Boost.Property_Tree. For the documentation of PREFERRED-RT-OPT,
856	# see the documentation of BOOST_FIND_LIB above.
857	BOOST_DEFUN([Property_Tree],
858	[BOOST_FIND_LIB([property_tree], [$1],
859	[boost/property_tree/ptree.hpp],
860	[boost::property_tree::ptree pt; boost::property_tree::read_xml d("test", pt);])
861	])# BOOST_PROPERTY_TREE
862
863
864	# BOOST_RANDOM()
865	# --------------------
866	# Look for Boost.Random
867	BOOST_DEFUN([Random],
868	[BOOST_FIND_HEADER([boost/random/random_number_generator.hpp])])
869
870
871	# BOOST_UNORDERED()
872	# -----------------
873	# Look for Boost.Unordered
874	BOOST_DEFUN([Unordered],
875	[BOOST_FIND_HEADER([boost/unordered_map.hpp])])
876
877
878	# BOOST_UUID()
879	# ------------
880	# Look for Boost.Uuid
881	BOOST_DEFUN([Uuid],
882	[BOOST_FIND_HEADER([boost/uuid/uuid.hpp])])
883
884
885	# BOOST_PROGRAM_OPTIONS([PREFERRED-RT-OPT])
886	# -----------------------------------------
887	# Look for Boost.Program_options. For the documentation of PREFERRED-RT-OPT,
888	# see the documentation of BOOST_FIND_LIB above.
889	BOOST_DEFUN([Program_Options],
890	[BOOST_FIND_LIB([program_options], [$1],
891	[boost/program_options.hpp],
892	[boost::program_options::options_description d("test");])
893	])# BOOST_PROGRAM_OPTIONS
894
895
896
897	# _BOOST_PYTHON_CONFIG(VARIABLE, FLAG)
898	# ------------------------------------
899	# Save VARIABLE, and define it via `python-config --FLAG`.
900	# Substitute BOOST_PYTHON_VARIABLE.
901	m4_define([_BOOST_PYTHON_CONFIG],
902	[AC_SUBST([BOOST_PYTHON_$1],
903	[`python-config --$2 2>/dev/null`])dnl
904	boost_python_save_$1=$$1
905	$1="$$1 $BOOST_PYTHON_$1"])
906
907
908	# BOOST_PYTHON([PREFERRED-RT-OPT])
909	# --------------------------------
910	# Look for Boost.Python. For the documentation of PREFERRED-RT-OPT,
911	# see the documentation of BOOST_FIND_LIB above.
912	BOOST_DEFUN([Python],
913	[_BOOST_PYTHON_CONFIG([CPPFLAGS], [includes])
914	_BOOST_PYTHON_CONFIG([LDFLAGS], [ldflags])
915	_BOOST_PYTHON_CONFIG([LIBS], [libs])
916	m4_pattern_allow([^BOOST_PYTHON_MODULE$])dnl
917	BOOST_FIND_LIBS([python], [python python3], [$1],
918	[boost/python.hpp],
919	[], [BOOST_PYTHON_MODULE(empty) {}])
920	CPPFLAGS=$boost_python_save_CPPFLAGS
921	LDFLAGS=$boost_python_save_LDFLAGS
922	LIBS=$boost_python_save_LIBS
923	])# BOOST_PYTHON
924
925
926	# BOOST_REF()
927	# -----------
928	# Look for Boost.Ref
929	BOOST_DEFUN([Ref],
930	[BOOST_FIND_HEADER([boost/ref.hpp])])
931
932
933	# BOOST_REGEX([PREFERRED-RT-OPT])
934	# -------------------------------
935	# Look for Boost.Regex. For the documentation of PREFERRED-RT-OPT, see the
936	# documentation of BOOST_FIND_LIB above.
937	BOOST_DEFUN([Regex],
938	[BOOST_FIND_LIB([regex], [$1],
939	[boost/regex.hpp],
940	[boost::regex exp("*"); boost::regex_match("foo", exp);])
941	])# BOOST_REGEX
942
943
944	# BOOST_SERIALIZATION([PREFERRED-RT-OPT])
945	# ---------------------------------------
946	# Look for Boost.Serialization. For the documentation of PREFERRED-RT-OPT, see
947	# the documentation of BOOST_FIND_LIB above.
948	BOOST_DEFUN([Serialization],
949	[BOOST_FIND_LIB([serialization], [$1],
950	[boost/archive/text_oarchive.hpp],
951	[std::ostream* o = 0; // Cheap way to get an ostream...
952	boost::archive::text_oarchive t(*o);])
953	])# BOOST_SERIALIZATION
954
955
956	# BOOST_SIGNALS([PREFERRED-RT-OPT])
957	# ---------------------------------
958	# Look for Boost.Signals. For the documentation of PREFERRED-RT-OPT, see the
959	# documentation of BOOST_FIND_LIB above.
960	BOOST_DEFUN([Signals],
961	[BOOST_FIND_LIB([signals], [$1],
962	[boost/signal.hpp],
963	[boost::signal<void ()> s;])
964	])# BOOST_SIGNALS
965
966
967	# BOOST_SIGNALS2()
968	# ----------------
969	# Look for Boost.Signals2 (new since 1.39.0).
970	BOOST_DEFUN([Signals2],
971	[BOOST_FIND_HEADER([boost/signals2.hpp])
972	])# BOOST_SIGNALS2
973
974
975	# BOOST_SMART_PTR()
976	# -----------------
977	# Look for Boost.SmartPtr
978	BOOST_DEFUN([Smart_Ptr],
979	[BOOST_FIND_HEADER([boost/scoped_ptr.hpp])
980	BOOST_FIND_HEADER([boost/shared_ptr.hpp])
981	])
982
983
984	# BOOST_STATICASSERT()
985	# --------------------
986	# Look for Boost.StaticAssert
987	BOOST_DEFUN([StaticAssert],
988	[BOOST_FIND_HEADER([boost/static_assert.hpp])])
989
990
991	# BOOST_STRING_ALGO()
992	# -------------------
993	# Look for Boost.StringAlgo
994	BOOST_DEFUN([String_Algo],
995	[BOOST_FIND_HEADER([boost/algorithm/string.hpp])
996	])
997
998
999	# BOOST_SYSTEM([PREFERRED-RT-OPT])
1000	# --------------------------------
1001	# Look for Boost.System. For the documentation of PREFERRED-RT-OPT, see the
1002	# documentation of BOOST_FIND_LIB above. This library was introduced in Boost
1003	# 1.35.0.
1004	BOOST_DEFUN([System],
1005	[BOOST_FIND_LIB([system], [$1],
1006	[boost/system/error_code.hpp],
1007	[boost::system::error_code e; e.clear();])
1008	])# BOOST_SYSTEM
1009
1010
1011	# BOOST_TEST([PREFERRED-RT-OPT])
1012	# ------------------------------
1013	# Look for Boost.Test. For the documentation of PREFERRED-RT-OPT, see the
1014	# documentation of BOOST_FIND_LIB above.
1015	BOOST_DEFUN([Test],
1016	[m4_pattern_allow([^BOOST_CHECK$])dnl
1017	BOOST_FIND_LIB([unit_test_framework], [$1],
1018	[boost/test/unit_test.hpp], [BOOST_CHECK(2 == 2);],
1019	[using boost::unit_test::test_suite;
1020	test_suite* init_unit_test_suite(int argc, char ** argv)
1021	{ return NULL; }])
1022	])# BOOST_TEST
1023
1024
1025	# BOOST_THREAD([PREFERRED-RT-OPT])
1026	# ---------------------------------
1027	# Look for Boost.Thread. For the documentation of PREFERRED-RT-OPT, see the
1028	# documentation of BOOST_FIND_LIB above.
1029	BOOST_DEFUN([Thread],
1030	[dnl Having the pthread flag is required at least on GCC3 where
1031	dnl boost/thread.hpp would complain if we try to compile without
1032	dnl -pthread on GNU/Linux.
1033	AC_REQUIRE([_BOOST_PTHREAD_FLAG])dnl
1034	boost_thread_save_LIBS=$LIBS
1035	boost_thread_save_LDFLAGS=$LDFLAGS
1036	boost_thread_save_CPPFLAGS=$CPPFLAGS
1037	# Link-time dependency from thread to system was added as of 1.49.0.
1038	if test $boost_major_version -ge 149; then
1039	BOOST_SYSTEM([$1])
1040	fi # end of the Boost.System check.
1041	m4_pattern_allow([^BOOST_SYSTEM_(LIBS\|LDFLAGS)$])dnl
1042	LIBS="$LIBS $BOOST_SYSTEM_LIBS $boost_cv_pthread_flag"
1043	LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
1044	CPPFLAGS="$CPPFLAGS $boost_cv_pthread_flag"
1045
1046	# When compiling for the Windows platform, the threads library is named
1047	# differently.
1048	case $host_os in
1049	(mingw) boost_thread_lib_ext=_win32;;
1050	esac
1051	BOOST_FIND_LIBS([thread], [thread$boost_thread_lib_ext],
1052	[$1],
1053	[boost/thread.hpp], [boost::thread t; boost::mutex m;])
1054
1055	BOOST_THREAD_LIBS="$BOOST_THREAD_LIBS $BOOST_SYSTEM_LIBS $boost_cv_pthread_flag"
1056	BOOST_THREAD_LDFLAGS="$BOOST_SYSTEM_LDFLAGS"
1057	BOOST_CPPFLAGS="$BOOST_CPPFLAGS $boost_cv_pthread_flag"
1058	LIBS=$boost_thread_save_LIBS
1059	LDFLAGS=$boost_thread_save_LDFLAGS
1060	CPPFLAGS=$boost_thread_save_CPPFLAGS
1061	])# BOOST_THREAD
1062
1063	AU_ALIAS([BOOST_THREADS], [BOOST_THREAD])
1064
1065
1066	# BOOST_TOKENIZER()
1067	# -----------------
1068	# Look for Boost.Tokenizer
1069	BOOST_DEFUN([Tokenizer],
1070	[BOOST_FIND_HEADER([boost/tokenizer.hpp])])
1071
1072
1073	# BOOST_TRIBOOL()
1074	# ---------------
1075	# Look for Boost.Tribool
1076	BOOST_DEFUN([Tribool],
1077	[BOOST_FIND_HEADER([boost/logic/tribool_fwd.hpp])
1078	BOOST_FIND_HEADER([boost/logic/tribool.hpp])
1079	])
1080
1081
1082	# BOOST_TUPLE()
1083	# -------------
1084	# Look for Boost.Tuple
1085	BOOST_DEFUN([Tuple],
1086	[BOOST_FIND_HEADER([boost/tuple/tuple.hpp])])
1087
1088
1089	# BOOST_TYPETRAITS()
1090	# --------------------
1091	# Look for Boost.TypeTraits
1092	BOOST_DEFUN([TypeTraits],
1093	[BOOST_FIND_HEADER([boost/type_traits.hpp])])
1094
1095
1096	# BOOST_UTILITY()
1097	# ---------------
1098	# Look for Boost.Utility (noncopyable, result_of, base-from-member idiom,
1099	# etc.)
1100	BOOST_DEFUN([Utility],
1101	[BOOST_FIND_HEADER([boost/utility.hpp])])
1102
1103
1104	# BOOST_VARIANT()
1105	# ---------------
1106	# Look for Boost.Variant.
1107	BOOST_DEFUN([Variant],
1108	[BOOST_FIND_HEADER([boost/variant/variant_fwd.hpp])
1109	BOOST_FIND_HEADER([boost/variant.hpp])])
1110
1111
1112	# BOOST_POINTER_CONTAINER()
1113	# ------------------------
1114	# Look for Boost.PointerContainer
1115	BOOST_DEFUN([Pointer_Container],
1116	[BOOST_FIND_HEADER([boost/ptr_container/ptr_deque.hpp])
1117	BOOST_FIND_HEADER([boost/ptr_container/ptr_list.hpp])
1118	BOOST_FIND_HEADER([boost/ptr_container/ptr_vector.hpp])
1119	BOOST_FIND_HEADER([boost/ptr_container/ptr_array.hpp])
1120	BOOST_FIND_HEADER([boost/ptr_container/ptr_set.hpp])
1121	BOOST_FIND_HEADER([boost/ptr_container/ptr_map.hpp])
1122	])# BOOST_POINTER_CONTAINER
1123
1124
1125	# BOOST_WAVE([PREFERRED-RT-OPT])
1126	# ------------------------------
1127	# NOTE: If you intend to use Wave/Spirit with thread support, make sure you
1128	# call BOOST_THREAD first.
1129	# Look for Boost.Wave. For the documentation of PREFERRED-RT-OPT, see the
1130	# documentation of BOOST_FIND_LIB above.
1131	BOOST_DEFUN([Wave],
1132	[AC_REQUIRE([BOOST_FILESYSTEM])dnl
1133	AC_REQUIRE([BOOST_DATE_TIME])dnl
1134	boost_wave_save_LIBS=$LIBS
1135	boost_wave_save_LDFLAGS=$LDFLAGS
1136	m4_pattern_allow([^BOOST_((FILE)?SYSTEM\|DATE_TIME\|THREAD)_(LIBS\|LDFLAGS)$])dnl
1137	LIBS="$LIBS $BOOST_SYSTEM_LIBS $BOOST_FILESYSTEM_LIBS $BOOST_DATE_TIME_LIBS \
1138	$BOOST_THREAD_LIBS"
1139	LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS $BOOST_FILESYSTEM_LDFLAGS \
1140	$BOOST_DATE_TIME_LDFLAGS $BOOST_THREAD_LDFLAGS"
1141	BOOST_FIND_LIB([wave], [$1],
1142	[boost/wave.hpp],
1143	[boost::wave::token_id id; get_token_name(id);])
1144	LIBS=$boost_wave_save_LIBS
1145	LDFLAGS=$boost_wave_save_LDFLAGS
1146	])# BOOST_WAVE
1147
1148
1149	# BOOST_XPRESSIVE()
1150	# -----------------
1151	# Look for Boost.Xpressive (new since 1.36.0).
1152	BOOST_DEFUN([Xpressive],
1153	[BOOST_FIND_HEADER([boost/xpressive/xpressive.hpp])])
1154
1155
1156	# ----------------- #
1157	# Internal helpers. #
1158	# ----------------- #
1159
1160
1161	# _BOOST_PTHREAD_FLAG()
1162	# ---------------------
1163	# Internal helper for BOOST_THREAD. Computes boost_cv_pthread_flag
1164	# which must be used in CPPFLAGS and LIBS.
1165	#
1166	# Yes, we need to put the -pthread thing in CPPFLAGS because with GCC3,
1167	# boost/thread.hpp will trigger a #error if -pthread isn't used:
1168	# boost/config/requires_threads.hpp:47:5: #error "Compiler threading support
1169	# is not turned on. Please set the correct command line options for
1170	# threading: -pthread (Linux), -pthreads (Solaris) or -mthreads (Mingw32)"
1171	#
1172	# Based on ACX_PTHREAD: http://autoconf-archive.cryp.to/acx_pthread.html
1173	AC_DEFUN([_BOOST_PTHREAD_FLAG],
1174	[AC_REQUIRE([AC_PROG_CXX])dnl
1175	AC_REQUIRE([AC_CANONICAL_HOST])dnl
1176	AC_LANG_PUSH([C++])dnl
1177	AC_CACHE_CHECK([for the flags needed to use pthreads], [boost_cv_pthread_flag],
1178	[ boost_cv_pthread_flag=
1179	# The ordering is (sometimes) important. Some notes on the
1180	# individual items follow:
1181	# (none): in case threads are in libc; should be tried before -Kthread and
1182	# other compiler flags to prevent continual compiler warnings
1183	# -lpthreads: AIX (must check this before -lpthread)
1184	# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
1185	# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
1186	# -llthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
1187	# -pthread: GNU Linux/GCC (kernel threads), BSD/GCC (userland threads)
1188	# -pthreads: Solaris/GCC
1189	# -mthreads: MinGW32/GCC, Lynx/GCC
1190	# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
1191	# doesn't hurt to check since this sometimes defines pthreads too;
1192	# also defines -D_REENTRANT)
1193	# ... -mt is also the pthreads flag for HP/aCC
1194	# -lpthread: GNU Linux, etc.
1195	# --thread-safe: KAI C++
1196	case $host_os in #(
1197	solaris)
1198	# On Solaris (at least, for some versions), libc contains stubbed
1199	# (non-functional) versions of the pthreads routines, so link-based
1200	# tests will erroneously succeed. (We need to link with -pthreads/-mt/
1201	# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
1202	# a function called by this macro, so we could check for that, but
1203	# who knows whether they'll stub that too in a future libc.) So,
1204	# we'll just look for -pthreads and -lpthread first:
1205	boost_pthread_flags="-pthreads -lpthread -mt -pthread";; #(
1206	*)
1207	boost_pthread_flags="-lpthreads -Kthread -kthread -llthread -pthread \
1208	-pthreads -mthreads -lpthread --thread-safe -mt";;
1209	esac
1210	# Generate the test file.
1211	AC_LANG_CONFTEST([AC_LANG_PROGRAM([#include <pthread.h>],
1212	[pthread_t th; pthread_join(th, 0);
1213	pthread_attr_init(0); pthread_cleanup_push(0, 0);
1214	pthread_create(0,0,0,0); pthread_cleanup_pop(0);])])
1215	for boost_pthread_flag in '' $boost_pthread_flags; do
1216	boost_pthread_ok=false
1217	dnl Re-use the test file already generated.
1218	boost_pthreads__save_LIBS=$LIBS
1219	LIBS="$LIBS $boost_pthread_flag"
1220	AC_LINK_IFELSE([],
1221	[if grep ".*$boost_pthread_flag" conftest.err; then
1222	echo "This flag seems to have triggered warnings" >&AS_MESSAGE_LOG_FD
1223	else
1224	boost_pthread_ok=:; boost_cv_pthread_flag=$boost_pthread_flag
1225	fi])
1226	LIBS=$boost_pthreads__save_LIBS
1227	$boost_pthread_ok && break
1228	done
1229	])
1230	AC_LANG_POP([C++])dnl
1231	])# _BOOST_PTHREAD_FLAG
1232
1233
1234	# _BOOST_gcc_test(MAJOR, MINOR)
1235	# -----------------------------
1236	# Internal helper for _BOOST_FIND_COMPILER_TAG.
1237	m4_define([_BOOST_gcc_test],
1238	["defined __GNUC__ && __GNUC__ == $1 && __GNUC_MINOR__ == $2 && !defined __ICC @ gcc$1$2"])dnl
1239
1240	# _BOOST_mingw_test(MAJOR, MINOR)
1241	# -----------------------------
1242	# Internal helper for _BOOST_FIND_COMPILER_TAG.
1243	m4_define([_BOOST_mingw_test],
1244	["defined __GNUC__ && __GNUC__ == $1 && __GNUC_MINOR__ == $2 && !defined __ICC && \
1245	(defined WIN32 \|\| defined WINNT \|\| defined _WIN32 \|\| defined __WIN32 \
1246	\|\| defined __WIN32__ \|\| defined __WINNT \|\| defined __WINNT__) @ mgw$1$2"])dnl
1247
1248
1249	# _BOOST_FIND_COMPILER_TAG()
1250	# --------------------------
1251	# Internal. When Boost is installed without --layout=system, each library
1252	# filename will hold a suffix that encodes the compiler used during the
1253	# build. The Boost build system seems to call this a `tag'.
1254	AC_DEFUN([_BOOST_FIND_COMPILER_TAG],
1255	[AC_REQUIRE([AC_PROG_CXX])dnl
1256	AC_REQUIRE([AC_CANONICAL_HOST])dnl
1257	AC_CACHE_CHECK([for the toolset name used by Boost for $CXX], [boost_cv_lib_tag],
1258	[boost_cv_lib_tag=unknown
1259	if test x$boost_cv_inc_path != xno; then
1260	AC_LANG_PUSH([C++])dnl
1261	# The following tests are mostly inspired by boost/config/auto_link.hpp
1262	# The list is sorted to most recent/common to oldest compiler (in order
1263	# to increase the likelihood of finding the right compiler with the
1264	# least number of compilation attempt).
1265	# Beware that some tests are sensible to the order (for instance, we must
1266	# look for MinGW before looking for GCC3).
1267	# I used one compilation test per compiler with a #error to recognize
1268	# each compiler so that it works even when cross-compiling (let me know
1269	# if you know a better approach).
1270	# Known missing tags (known from Boost's tools/build/v2/tools/common.jam):
1271	# como, edg, kcc, bck, mp, sw, tru, xlc
1272	# I'm not sure about my test for `il' (be careful: Intel's ICC pre-defines
1273	# the same defines as GCC's).
1274	for i in \
1275	_BOOST_mingw_test(4,8) \
1276	_BOOST_gcc_test(4, 8) \
1277	_BOOST_mingw_test(4,7) \
1278	_BOOST_gcc_test(4, 7) \
1279	_BOOST_mingw_test(4,6) \
1280	_BOOST_gcc_test(4, 6) \
1281	_BOOST_mingw_test(4,5) \
1282	_BOOST_gcc_test(4, 5) \
1283	_BOOST_mingw_test(4,4) \
1284	_BOOST_gcc_test(4, 4) \
1285	_BOOST_mingw_test(4,3) \
1286	_BOOST_gcc_test(4, 3) \
1287	_BOOST_mingw_test(4,2) \
1288	_BOOST_gcc_test(4, 2) \
1289	_BOOST_mingw_test(4,1) \
1290	_BOOST_gcc_test(4, 1) \
1291	_BOOST_mingw_test(4,0) \
1292	_BOOST_gcc_test(4, 0) \
1293	"defined __GNUC__ && __GNUC__ == 3 && !defined __ICC \
1294	&& (defined WIN32 \|\| defined WINNT \|\| defined _WIN32 \|\| defined __WIN32 \
1295	\|\| defined __WIN32__ \|\| defined __WINNT \|\| defined __WINNT__) @ mgw" \
1296	_BOOST_gcc_test(3, 4) \
1297	_BOOST_gcc_test(3, 3) \
1298	"defined _MSC_VER && _MSC_VER >= 1500 @ vc90" \
1299	"defined _MSC_VER && _MSC_VER == 1400 @ vc80" \
1300	_BOOST_gcc_test(3, 2) \
1301	"defined _MSC_VER && _MSC_VER == 1310 @ vc71" \
1302	_BOOST_gcc_test(3, 1) \
1303	_BOOST_gcc_test(3, 0) \
1304	"defined __BORLANDC__ @ bcb" \
1305	"defined __ICC && (defined __unix \|\| defined __unix__) @ il" \
1306	"defined __ICL @ iw" \
1307	"defined _MSC_VER && _MSC_VER == 1300 @ vc7" \
1308	_BOOST_gcc_test(2, 95) \
1309	"defined __MWERKS__ && __MWERKS__ <= 0x32FF @ cw9" \
1310	"defined _MSC_VER && _MSC_VER < 1300 && !defined UNDER_CE @ vc6" \
1311	"defined _MSC_VER && _MSC_VER < 1300 && defined UNDER_CE @ evc4" \
1312	"defined __MWERKS__ && __MWERKS__ <= 0x31FF @ cw8"
1313	do
1314	boost_tag_test=`expr "X$i" : 'X$[[^@]]*$ @ '`
1315	boost_tag=`expr "X$i" : 'X[[^@]]* @ $.*$'`
1316	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1317	#if $boost_tag_test
1318	/* OK */
1319	#else
1320	# error $boost_tag_test
1321	#endif
1322	]])], [boost_cv_lib_tag=$boost_tag; break], [])
1323	done
1324	AC_LANG_POP([C++])dnl
1325	case $boost_cv_lib_tag in #(
1326	# Some newer (>= 1.35?) versions of Boost seem to only use "gcc" as opposed
1327	# to "gcc41" for instance.
1328	-gcc \| '-gcc ') :;; #( Don't re-add -gcc: it's already in there.
1329	gcc*)
1330	boost_tag_x=
1331	case $host_os in #(
1332	darwin*)
1333	if test $boost_major_version -ge 136; then
1334	# The `x' added in r46793 of Boost.
1335	boost_tag_x=x
1336	fi;;
1337	esac
1338	# We can specify multiple tags in this variable because it's used by
1339	# BOOST_FIND_LIB that does a `for tag in -$boost_cv_lib_tag' ...
1340	boost_cv_lib_tag="$boost_tag_x$boost_cv_lib_tag -${boost_tag_x}gcc"
1341	;; #(
1342	unknown)
1343	AC_MSG_WARN([[could not figure out which toolset name to use for $CXX]])
1344	boost_cv_lib_tag=
1345	;;
1346	esac
1347	fi])dnl end of AC_CACHE_CHECK
1348	])# _BOOST_FIND_COMPILER_TAG
1349
1350
1351	# _BOOST_GUESS_WHETHER_TO_USE_MT()
1352	# --------------------------------
1353	# Compile a small test to try to guess whether we should favor MT (Multi
1354	# Thread) flavors of Boost. Sets boost_guess_use_mt accordingly.
1355	AC_DEFUN([_BOOST_GUESS_WHETHER_TO_USE_MT],
1356	[# Check whether we do better use `mt' even though we weren't ask to.
1357	AC_LANG_PUSH([C++])dnl
1358	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1359	#if defined _REENTRANT \|\| defined _MT \|\| defined __MT__
1360	/* use -mt */
1361	#else
1362	# error MT not needed
1363	#endif
1364	]])], [boost_guess_use_mt=:], [boost_guess_use_mt=false])
1365	AC_LANG_POP([C++])dnl
1366	])
1367
1368	# _BOOST_AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1369	# -------------------------------------------------------------------
1370	# Fork of _AC_LINK_IFELSE that preserves conftest.o across calls. Fragile,
1371	# will break when Autoconf changes its internals. Requires that you manually
1372	# rm -f conftest.$ac_objext in between to really different tests, otherwise
1373	# you will try to link a conftest.o left behind by a previous test.
1374	# Used to aggressively optimize BOOST_FIND_LIB (see the big comment in this
1375	# macro).
1376	#
1377	# Don't use "break" in the actions, as it would short-circuit some code
1378	# this macro runs after the actions.
1379	m4_define([_BOOST_AC_LINK_IFELSE],
1380	[m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
1381	rm -f conftest$ac_exeext
1382	boost_save_ac_ext=$ac_ext
1383	boost_use_source=:
1384	# If we already have a .o, re-use it. We change $ac_ext so that $ac_link
1385	# tries to link the existing object file instead of compiling from source.
1386	test -f conftest.$ac_objext && ac_ext=$ac_objext && boost_use_source=false &&
1387	_AS_ECHO_LOG([re-using the existing conftest.$ac_objext])
1388	AS_IF([_AC_DO_STDERR($ac_link) && {
1389	test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" \|\|
1390	test ! -s conftest.err
1391	} && test -s conftest$ac_exeext && {
1392	test "$cross_compiling" = yes \|\|
1393	$as_executable_p conftest$ac_exeext
1394	dnl FIXME: use AS_TEST_X instead when 2.61 is widespread enough.
1395	}],
1396	[$2],
1397	[if $boost_use_source; then
1398	_AC_MSG_LOG_CONFTEST
1399	fi
1400	$3])
1401	ac_objext=$boost_save_ac_objext
1402	ac_ext=$boost_save_ac_ext
1403	dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
1404	dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
1405	dnl as it would interfere with the next link command.
1406	rm -f core conftest.err conftest_ipa8_conftest.oo \
1407	conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
1408	])# _BOOST_AC_LINK_IFELSE
1409
1410	# Local Variables:
1411	# mode: autoconf
1412	# End:

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