1 # boost.m4: Locate Boost headers and libraries for autoconf-based projects.
2 # Copyright (C) 2007, 2008, 2009, 2010, 2011 Benoit Sigoure <tsuna@lrde.epita.fr>
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.
9 # Additional permission under section 7 of the GNU General Public
10 # License, version 3 ("GPLv3"):
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.
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.
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/>.
24 m4_define([_BOOST_SERIAL], [m4_translit([
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
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.
48 m4_pattern_forbid([^_?(BOOST|Boost)_])
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.
56 # SED-PROGRAM is *not* overquoted, as in AC_EGREP_CPP. It is expanded
57 # in double-quotes, so escape your double quotes.
59 # It could be useful to turn this into a macro which extracts the
61 m4_define([_BOOST_SED_CPP],
62 [AC_LANG_PREPROC_REQUIRE()dnl
63 AC_REQUIRE([AC_PROG_SED])dnl
64 AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
65 AS_IF([dnl eval is necessary to expand ac_cpp.
66 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
67 dnl Beware of Windows end-of-lines, for instance if we are running
68 dnl some Windows programs under Wine. In that case, boost/version.hpp
69 dnl is certainly using "\r\n", but the regular Unix shell will only
70 dnl strip `\n' with backquotes, not the `\r'. This results in
71 dnl boost_cv_lib_version='1_37\r' for instance, which breaks
73 dnl Cannot use 'dnl' after [$4] because a trailing dnl may break AC_CACHE_CHECK
74 (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
76 $SED -n -e "$1" >conftest.i 2>&1],
84 # BOOST_REQUIRE([VERSION], [ACTION-IF-NOT-FOUND])
85 # -----------------------------------------------
86 # Look for Boost. If version is given, it must either be a literal of the form
87 # "X.Y.Z" where X, Y and Z are integers (the ".Z" part being optional) or a
89 # Defines the value BOOST_CPPFLAGS. This macro only checks for headers with
90 # the required version, it does not check for any of the Boost libraries.
91 # On # success, defines HAVE_BOOST. On failure, calls the optional
92 # ACTION-IF-NOT-FOUND action if one was supplied.
93 # Otherwise aborts with an error message.
94 AC_DEFUN([BOOST_REQUIRE],
95 [AC_REQUIRE([AC_PROG_CXX])dnl
96 AC_REQUIRE([AC_PROG_GREP])dnl
97 echo "$as_me: this is boost.m4[]_BOOST_SERIAL" >&AS_MESSAGE_LOG_FD
101 set x $boost_version_req 0 0 0
104 boost_version_req=`expr "$[1]" '*' 100000 + "$[2]" '*' 100 + "$[3]"`
105 boost_version_req_string=$[1].$[2].$[3]
107 [AS_HELP_STRING([--with-boost=DIR],
108 [prefix of Boost $1 @<:@guess@:>@])])dnl
109 AC_ARG_VAR([BOOST_ROOT],[Location of Boost installation])dnl
110 # If BOOST_ROOT is set and the user has not provided a value to
111 # --with-boost, then treat BOOST_ROOT as if it the user supplied it.
112 if test x"$BOOST_ROOT" != x; then
113 if test x"$with_boost" = x; then
114 AC_MSG_NOTICE([Detected BOOST_ROOT; continuing with --with-boost=$BOOST_ROOT])
115 with_boost=$BOOST_ROOT
117 AC_MSG_NOTICE([Detected BOOST_ROOT=$BOOST_ROOT, but overridden by --with-boost=$with_boost])
120 AC_SUBST([DISTCHECK_CONFIGURE_FLAGS],
121 ["$DISTCHECK_CONFIGURE_FLAGS '--with-boost=$with_boost'"])dnl
122 boost_save_CPPFLAGS=$CPPFLAGS
123 AC_CACHE_CHECK([for Boost headers version >= $boost_version_req_string],
125 [boost_cv_inc_path=no
126 AC_LANG_PUSH([C++])dnl
127 m4_pattern_allow([^BOOST_VERSION$])dnl
128 AC_LANG_CONFTEST([AC_LANG_PROGRAM([[#include <boost/version.hpp>
129 #if !defined BOOST_VERSION
130 # error BOOST_VERSION is not defined
131 #elif BOOST_VERSION < $boost_version_req
132 # error Boost headers version < $boost_version_req
135 # If the user provided a value to --with-boost, use it and only it.
136 case $with_boost in #(
137 ''|yes) set x '' /opt/local/include /usr/local/include /opt/include \
138 /usr/include C:/Boost/include;; #(
139 *) set x "$with_boost/include" "$with_boost";;
144 # Without --layout=system, Boost (or at least some versions) installs
145 # itself in <prefix>/include/boost-<version>. This inner loop helps to
146 # find headers in such directories.
148 # Any ${boost_dir}/boost-x_xx directories are searched in reverse version
149 # order followed by ${boost_dir}. The final '.' is a sentinel for
150 # searching $boost_dir" itself. Entries are whitespace separated.
152 # I didn't indent this loop on purpose (to avoid over-indented code)
153 boost_layout_system_search_list=`cd "$boost_dir" 2>/dev/null \
154 && ls -1 | "${GREP}" '^boost-' | sort -rn -t- -k2 \
156 for boost_inc in $boost_layout_system_search_list
158 if test x"$boost_inc" != x.; then
159 boost_inc="$boost_dir/$boost_inc"
161 boost_inc="$boost_dir" # Uses sentinel in boost_layout_system_search_list
163 if test x"$boost_inc" != x; then
164 # We are going to check whether the version of Boost installed
165 # in $boost_inc is usable by running a compilation that
166 # #includes it. But if we pass a -I/some/path in which Boost
167 # is not installed, the compiler will just skip this -I and
168 # use other locations (either from CPPFLAGS, or from its list
169 # of system include directories). As a result we would use
170 # header installed on the machine instead of the /some/path
171 # specified by the user. So in that precise case (trying
172 # $boost_inc), make sure the version.hpp exists.
174 # Use test -e as there can be symlinks.
175 test -e "$boost_inc/boost/version.hpp" || continue
176 CPPFLAGS="$CPPFLAGS -I$boost_inc"
178 AC_COMPILE_IFELSE([], [boost_cv_inc_path=yes], [boost_cv_version=no])
179 if test x"$boost_cv_inc_path" = xyes; then
180 if test x"$boost_inc" != x; then
181 boost_cv_inc_path=$boost_inc
187 AC_LANG_POP([C++])dnl
189 case $boost_cv_inc_path in #(
191 boost_errmsg="cannot find Boost headers version >= $boost_version_req_string"
192 m4_if([$2], [], [AC_MSG_ERROR([$boost_errmsg])],
193 [AC_MSG_NOTICE([$boost_errmsg])])
200 AC_SUBST([BOOST_CPPFLAGS], ["-I$boost_cv_inc_path"])dnl
203 if test x"$boost_cv_inc_path" != xno; then
204 AC_DEFINE([HAVE_BOOST], [1],
205 [Defined if the requested minimum BOOST version is satisfied])
206 AC_CACHE_CHECK([for Boost's header version],
207 [boost_cv_lib_version],
208 [m4_pattern_allow([^BOOST_LIB_VERSION$])dnl
209 _BOOST_SED_CPP([/^boost-lib-version = /{s///;s/\"//g;p;q;}],
210 [#include <boost/version.hpp>
211 boost-lib-version = BOOST_LIB_VERSION],
212 [boost_cv_lib_version=`cat conftest.i`])])
213 # e.g. "134" for 1_34_1 or "135" for 1_35
214 boost_major_version=`echo "$boost_cv_lib_version" | sed 's/_//;s/_.*//'`
215 case $boost_major_version in #(
217 AC_MSG_ERROR([invalid value: boost_major_version=$boost_major_version])
221 CPPFLAGS=$boost_save_CPPFLAGS
226 # Add the "--enable-static-boost" configure argument. If this argument is given
227 # on the command line, static versions of the libraries will be looked up.
228 AC_DEFUN([BOOST_STATIC],
229 [AC_ARG_ENABLE([static-boost],
230 [AC_HELP_STRING([--enable-static-boost],
231 [Prefer the static boost libraries over the shared ones [no]])],
232 [enable_static_boost=yes],
233 [enable_static_boost=no])])# BOOST_STATIC
235 # BOOST_FIND_HEADER([HEADER-NAME], [ACTION-IF-NOT-FOUND], [ACTION-IF-FOUND])
236 # --------------------------------------------------------------------------
237 # Wrapper around AC_CHECK_HEADER for Boost headers. Useful to check for
238 # some parts of the Boost library which are only made of headers and don't
239 # require linking (such as Boost.Foreach).
241 # Default ACTION-IF-NOT-FOUND: Fail with a fatal error unless Boost couldn't be
242 # found in the first place, in which case by default a notice is issued to the
243 # user. Presumably if we haven't died already it's because it's OK to not have
244 # Boost, which is why only a notice is issued instead of a hard error.
246 # Default ACTION-IF-FOUND: define the preprocessor symbol HAVE_<HEADER-NAME> in
247 # case of success # (where HEADER-NAME is written LIKE_THIS, e.g.,
248 # HAVE_BOOST_FOREACH_HPP).
249 AC_DEFUN([BOOST_FIND_HEADER],
250 [AC_REQUIRE([BOOST_REQUIRE])dnl
251 if test x"$boost_cv_inc_path" = xno; then
252 m4_default([$2], [AC_MSG_NOTICE([Boost not available, not searching for $1])])
254 AC_LANG_PUSH([C++])dnl
255 boost_save_CPPFLAGS=$CPPFLAGS
256 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
257 AC_CHECK_HEADER([$1],
258 [m4_default([$3], [AC_DEFINE(AS_TR_CPP([HAVE_$1]), [1],
259 [Define to 1 if you have <$1>])])],
260 [m4_default([$2], [AC_MSG_ERROR([cannot find $1])])])
261 CPPFLAGS=$boost_save_CPPFLAGS
262 AC_LANG_POP([C++])dnl
264 ])# BOOST_FIND_HEADER
267 # BOOST_FIND_LIB([LIB-NAME], [PREFERRED-RT-OPT], [HEADER-NAME], [CXX-TEST],
268 # [CXX-PROLOGUE], [ACTION-IF-NOT-FOUND])
269 # -------------------------------------------------------------------------
270 # Look for the Boost library LIB-NAME (e.g., LIB-NAME = `thread', for
271 # libboost_thread). Check that HEADER-NAME works and check that
272 # libboost_LIB-NAME can link with the code CXX-TEST. The optional argument
273 # CXX-PROLOGUE can be used to include some C++ code before the `main'
274 # function. If ACTION-IF-NOT-FOUND is given, errors are nonfatal (otherwise
277 # Invokes BOOST_FIND_HEADER([HEADER-NAME]) (see above).
279 # Boost libraries typically come compiled with several flavors (with different
280 # runtime options) so PREFERRED-RT-OPT is the preferred suffix. A suffix is one
281 # or more of the following letters: sgdpn (in that order). s = static
282 # runtime, d = debug build, g = debug/diagnostic runtime, p = STLPort build,
283 # n = (unsure) STLPort build without iostreams from STLPort (it looks like `n'
284 # must always be used along with `p'). Additionally, PREFERRED-RT-OPT can
285 # start with `mt-' to indicate that there is a preference for multi-thread
286 # builds. Some sample values for PREFERRED-RT-OPT: (nothing), mt, d, mt-d, gdp
287 # ... If you want to make sure you have a specific version of Boost
288 # (eg, >= 1.33) you *must* invoke BOOST_REQUIRE before this macro.
289 AC_DEFUN([BOOST_FIND_LIB],
290 [AC_REQUIRE([BOOST_REQUIRE])dnl
291 AC_REQUIRE([_BOOST_FIND_COMPILER_TAG])dnl
292 AC_REQUIRE([BOOST_STATIC])dnl
293 AC_REQUIRE([_BOOST_GUESS_WHETHER_TO_USE_MT])dnl
294 if test x"$boost_cv_inc_path" = xno; then
295 AC_MSG_NOTICE([Boost not available, not searching for the Boost $1 library])
297 dnl The else branch is huge and wasn't intended on purpose.
298 AC_LANG_PUSH([C++])dnl
299 AS_VAR_PUSHDEF([Boost_lib], [boost_cv_lib_$1])dnl
300 AS_VAR_PUSHDEF([Boost_lib_LDFLAGS], [boost_cv_lib_$1_LDFLAGS])dnl
301 AS_VAR_PUSHDEF([Boost_lib_LDPATH], [boost_cv_lib_$1_LDPATH])dnl
302 AS_VAR_PUSHDEF([Boost_lib_LIBS], [boost_cv_lib_$1_LIBS])dnl
303 BOOST_FIND_HEADER([$3], [$6])
304 boost_save_CPPFLAGS=$CPPFLAGS
305 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
306 # Now let's try to find the library. The algorithm is as follows: first look
307 # for a given library name according to the user's PREFERRED-RT-OPT. For each
308 # library name, we prefer to use the ones that carry the tag (toolset name).
309 # Each library is searched through the various standard paths were Boost is
310 # usually installed. If we can't find the standard variants, we try to
311 # enforce -mt (for instance on MacOSX, libboost_threads.dylib doesn't exist
312 # but there's -obviously- libboost_threads-mt.dylib).
313 AC_CACHE_CHECK([for the Boost $1 library], [Boost_lib],
316 mt | mt-) boost_mt=-mt; boost_rtopt=;; #(
317 mt* | mt-*) boost_mt=-mt; boost_rtopt=`expr "X$2" : 'Xmt-*\(.*\)'`;; #(
318 *) boost_mt=; boost_rtopt=$2;;
320 if test $enable_static_boost = yes; then
321 boost_rtopt="s$boost_rtopt"
323 # Find the proper debug variant depending on what we've been asked to find.
324 case $boost_rtopt in #(
325 *d*) boost_rt_d=$boost_rtopt;; #(
326 *[[sgpn]]*) # Insert the `d' at the right place (in between `sg' and `pn')
327 boost_rt_d=`echo "$boost_rtopt" | sed 's/\(s*g*\)\(p*n*\)/\1\2/'`;; #(
330 # If the PREFERRED-RT-OPT are not empty, prepend a `-'.
331 test -n "$boost_rtopt" && boost_rtopt="-$boost_rtopt"
332 $boost_guess_use_mt && boost_mt=-mt
333 # Look for the abs path the static archive.
334 # $libext is computed by Libtool but let's make sure it's non empty.
336 AC_MSG_ERROR([the libext variable is empty, did you invoke Libtool?])
337 boost_save_ac_objext=$ac_objext
338 # Generate the test file.
339 AC_LANG_CONFTEST([AC_LANG_PROGRAM([#include <$3>
341 dnl Optimization hacks: compiling C++ is slow, especially with Boost. What
342 dnl we're trying to do here is guess the right combination of link flags
343 dnl (LIBS / LDFLAGS) to use a given library. This can take several
344 dnl iterations before it succeeds and is thus *very* slow. So what we do
345 dnl instead is that we compile the code first (and thus get an object file,
346 dnl typically conftest.o). Then we try various combinations of link flags
347 dnl until we succeed to link conftest.o in an executable. The problem is
348 dnl that the various TRY_LINK / COMPILE_IFELSE macros of Autoconf always
349 dnl remove all the temporary files including conftest.o. So the trick here
350 dnl is to temporarily change the value of ac_objext so that conftest.o is
351 dnl preserved accross tests. This is obviously fragile and I will burn in
352 dnl hell for not respecting Autoconf's documented interfaces, but in the
353 dnl mean time, it optimizes the macro by a factor of 5 to 30.
354 dnl Another small optimization: the first argument of AC_COMPILE_IFELSE left
355 dnl empty because the test file is generated only once above (before we
356 dnl start the for loops).
357 AC_COMPILE_IFELSE([],
358 [ac_objext=do_not_rm_me_plz],
359 [m4_if([$6], [], [AC_MSG_ERROR([cannot compile a test that uses Boost $1])],
360 [AC_MSG_NOTICE([cannot compile a test that uses Boost $1])])
362 ac_objext=$boost_save_ac_objext
364 # Don't bother to ident the 6 nested for loops, only the 2 innermost ones
366 for boost_tag_ in -$boost_cv_lib_tag ''; do
367 for boost_ver_ in -$boost_cv_lib_version ''; do
368 for boost_mt_ in $boost_mt -mt ''; do
369 for boost_rtopt_ in $boost_rtopt '' -d; do
371 boost_$1$boost_tag_$boost_mt_$boost_rtopt_$boost_ver_ \
372 boost_$1$boost_tag_$boost_rtopt_$boost_ver_ \
373 boost_$1$boost_tag_$boost_mt_$boost_ver_ \
374 boost_$1$boost_tag_$boost_ver_
376 # Avoid testing twice the same lib
377 case $boost_failed_libs in #(
378 *@$boost_lib@*) continue;;
380 # If with_boost is empty, we'll search in /lib first, which is not quite
381 # right so instead we'll try to a location based on where the headers are.
382 boost_tmp_lib=$with_boost
383 test x"$with_boost" = x && boost_tmp_lib=${boost_cv_inc_path%/include}
384 for boost_ldpath in "$boost_tmp_lib/lib" '' \
385 /opt/local/lib* /usr/local/lib* /opt/lib* /usr/lib* \
386 "$with_boost" C:/Boost/lib /lib*
388 test -e "$boost_ldpath" || continue
389 boost_save_LDFLAGS=$LDFLAGS
390 # Are we looking for a static library?
391 case $boost_ldpath:$boost_rtopt_ in #(
392 *?*:*s*) # Yes (Non empty boost_ldpath + s in rt opt)
393 Boost_lib_LIBS="$boost_ldpath/lib$boost_lib.$libext"
394 test -e "$Boost_lib_LIBS" || continue;; #(
395 *) # No: use -lboost_foo to find the shared library.
396 Boost_lib_LIBS="-l$boost_lib";;
398 boost_save_LIBS=$LIBS
399 LIBS="$Boost_lib_LIBS $LIBS"
400 test x"$boost_ldpath" != x && LDFLAGS="$LDFLAGS -L$boost_ldpath"
401 dnl First argument of AC_LINK_IFELSE left empty because the test file is
402 dnl generated only once above (before we start the for loops).
403 _BOOST_AC_LINK_IFELSE([],
404 [Boost_lib=yes], [Boost_lib=no])
405 ac_objext=$boost_save_ac_objext
406 LDFLAGS=$boost_save_LDFLAGS
407 LIBS=$boost_save_LIBS
408 if test x"$Boost_lib" = xyes; then
409 Boost_lib_LDFLAGS="-L$boost_ldpath -Wl,-R$boost_ldpath"
410 Boost_lib_LDPATH="$boost_ldpath"
413 boost_failed_libs="$boost_failed_libs@$boost_lib@"
421 rm -f conftest.$ac_objext
423 case $Boost_lib in #((
424 no) _AC_MSG_LOG_CONFTEST
425 m4_if([$6], [], [AC_MSG_ERROR([cannot find the flags to link with Boost $1])],
426 [AC_MSG_NOTICE([cannot find the flags to link with Boost $1])])
430 AC_SUBST(AS_TR_CPP([BOOST_$1_LDFLAGS]), [$Boost_lib_LDFLAGS])dnl
431 AC_SUBST(AS_TR_CPP([BOOST_$1_LDPATH]), [$Boost_lib_LDPATH])dnl
432 AC_SUBST([BOOST_LDPATH], [$Boost_lib_LDPATH])dnl
433 AC_SUBST(AS_TR_CPP([BOOST_$1_LIBS]), [$Boost_lib_LIBS])dnl
436 CPPFLAGS=$boost_save_CPPFLAGS
437 AS_VAR_POPDEF([Boost_lib])dnl
438 AS_VAR_POPDEF([Boost_lib_LDFLAGS])dnl
439 AS_VAR_POPDEF([Boost_lib_LDPATH])dnl
440 AS_VAR_POPDEF([Boost_lib_LIBS])dnl
441 AC_LANG_POP([C++])dnl
446 # --------------------------------------- #
447 # Checks for the various Boost libraries. #
448 # --------------------------------------- #
450 # List of boost libraries: http://www.boost.org/libs/libraries.htm
451 # The page http://beta.boost.org/doc/libs is useful: it gives the first release
452 # version of each library (among other things).
454 # BOOST_DEFUN(LIBRARY, CODE)
455 # --------------------------
456 # Define BOOST_<LIBRARY-UPPERCASE> as a macro that runs CODE.
458 # Use indir to avoid the warning on underquoted macro name given to AC_DEFUN.
459 m4_define([BOOST_DEFUN],
460 [m4_indir([AC_DEFUN],
461 m4_toupper([BOOST_$1]),
462 [m4_pushdef([BOOST_Library], [$1])dnl
464 m4_popdef([BOOST_Library])dnl
470 # Look for Boost.Array
472 [BOOST_FIND_HEADER([boost/array.hpp])])
477 # Look for Boost.Asio (new in Boost 1.35).
479 [AC_REQUIRE([BOOST_SYSTEM])dnl
480 BOOST_FIND_HEADER([boost/asio.hpp])])
485 # Look for Boost.Bind
487 [BOOST_FIND_HEADER([boost/bind.hpp])])
492 # Look for Boost.Chrono
493 BOOST_DEFUN([Chrono],
494 [# Do we have to check for Boost.System? This link-time dependency was
495 # added as of 1.35.0. If we have a version <1.35, we must not attempt to
496 # find Boost.System as it didn't exist by then.
497 if test $boost_major_version -ge 135; then
499 fi # end of the Boost.System check.
500 boost_filesystem_save_LIBS=$LIBS
501 boost_filesystem_save_LDFLAGS=$LDFLAGS
502 m4_pattern_allow([^BOOST_SYSTEM_(LIBS|LDFLAGS)$])dnl
503 LIBS="$LIBS $BOOST_SYSTEM_LIBS"
504 LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
505 BOOST_FIND_LIB([chrono], [$1],
507 [boost::chrono::thread_clock d;])
508 if test $enable_static_boost = yes && test $boost_major_version -ge 135; then
509 AC_SUBST([BOOST_FILESYSTEM_LIBS], ["$BOOST_FILESYSTEM_LIBS $BOOST_SYSTEM_LIBS"])
511 LIBS=$boost_filesystem_save_LIBS
512 LDFLAGS=$boost_filesystem_save_LDFLAGS
519 # Look for Boost.Conversion (cast / lexical_cast)
520 BOOST_DEFUN([Conversion],
521 [BOOST_FIND_HEADER([boost/cast.hpp])
522 BOOST_FIND_HEADER([boost/lexical_cast.hpp])
526 # BOOST_DATE_TIME([PREFERRED-RT-OPT])
527 # -----------------------------------
528 # Look for Boost.Date_Time. For the documentation of PREFERRED-RT-OPT, see the
529 # documentation of BOOST_FIND_LIB above.
530 BOOST_DEFUN([Date_Time],
531 [BOOST_FIND_LIB([date_time], [$1],
532 [boost/date_time/posix_time/posix_time.hpp],
533 [boost::posix_time::ptime t;])
537 # BOOST_FILESYSTEM([PREFERRED-RT-OPT])
538 # ------------------------------------
539 # Look for Boost.Filesystem. For the documentation of PREFERRED-RT-OPT, see
540 # the documentation of BOOST_FIND_LIB above.
541 # Do not check for boost/filesystem.hpp because this file was introduced in
543 BOOST_DEFUN([Filesystem],
544 [# Do we have to check for Boost.System? This link-time dependency was
545 # added as of 1.35.0. If we have a version <1.35, we must not attempt to
546 # find Boost.System as it didn't exist by then.
547 if test $boost_major_version -ge 135; then
549 fi # end of the Boost.System check.
550 boost_filesystem_save_LIBS=$LIBS
551 boost_filesystem_save_LDFLAGS=$LDFLAGS
552 m4_pattern_allow([^BOOST_SYSTEM_(LIBS|LDFLAGS)$])dnl
553 LIBS="$LIBS $BOOST_SYSTEM_LIBS"
554 LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
555 BOOST_FIND_LIB([filesystem], [$1],
556 [boost/filesystem/path.hpp], [boost::filesystem::path p;])
557 if test $enable_static_boost = yes && test $boost_major_version -ge 135; then
558 AC_SUBST([BOOST_FILESYSTEM_LIBS], ["$BOOST_FILESYSTEM_LIBS $BOOST_SYSTEM_LIBS"])
560 LIBS=$boost_filesystem_save_LIBS
561 LDFLAGS=$boost_filesystem_save_LDFLAGS
567 # Look for Boost.Foreach
568 BOOST_DEFUN([Foreach],
569 [BOOST_FIND_HEADER([boost/foreach.hpp])])
574 # Look for Boost.Format
575 # Note: we can't check for boost/format/format_fwd.hpp because the header isn't
576 # standalone. It can't be compiled because it triggers the following error:
577 # boost/format/detail/config_macros.hpp:88: error: 'locale' in namespace 'std'
578 # does not name a type
579 BOOST_DEFUN([Format],
580 [BOOST_FIND_HEADER([boost/format.hpp])])
585 # Look for Boost.Function
586 BOOST_DEFUN([Function],
587 [BOOST_FIND_HEADER([boost/function.hpp])])
590 # BOOST_GRAPH([PREFERRED-RT-OPT])
591 # -------------------------------
592 # Look for Boost.Graphs. For the documentation of PREFERRED-RT-OPT, see the
593 # documentation of BOOST_FIND_LIB above.
595 [BOOST_FIND_LIB([graph], [$1],
596 [boost/graph/adjacency_list.hpp], [boost::adjacency_list<> g;])
600 # BOOST_IOSTREAMS([PREFERRED-RT-OPT])
601 # -----------------------------------
602 # Look for Boost.IOStreams. For the documentation of PREFERRED-RT-OPT, see the
603 # documentation of BOOST_FIND_LIB above.
604 BOOST_DEFUN([IOStreams],
605 [BOOST_FIND_LIB([iostreams], [$1],
606 [boost/iostreams/device/file_descriptor.hpp],
607 [boost::iostreams::file_descriptor fd; fd.close();])
613 # Look for Boost.Functional/Hash
615 [BOOST_FIND_HEADER([boost/functional/hash.hpp])])
620 # Look for Boost.Lambda
621 BOOST_DEFUN([Lambda],
622 [BOOST_FIND_HEADER([boost/lambda/lambda.hpp])])
625 # BOOST_LOG([PREFERRED-RT-OPT])
626 # -----------------------------
627 # Look for Boost.Log For the documentation of PREFERRED-RT-OPT, see the
628 # documentation of BOOST_FIND_LIB above.
630 [BOOST_FIND_LIB([log], [$1],
631 [boost/log/core/core.hpp],
632 [boost::log::attribute a; a.get_value();])
636 # BOOST_LOG_SETUP([PREFERRED-RT-OPT])
637 # -----------------------------------
638 # Look for Boost.Log For the documentation of PREFERRED-RT-OPT, see the
639 # documentation of BOOST_FIND_LIB above.
640 BOOST_DEFUN([Log_Setup],
641 [AC_REQUIRE([BOOST_LOG])dnl
642 BOOST_FIND_LIB([log_setup], [$1],
643 [boost/log/utility/init/from_settings.hpp],
644 [boost::log::basic_settings<char> bs; bs.empty();])
650 # Look for Boost.Math
651 # TODO: This library isn't header-only but it comes in multiple different
652 # flavors that don't play well with BOOST_FIND_LIB (e.g, libboost_math_c99,
653 # libboost_math_c99f, libboost_math_c99l, libboost_math_tr1,
654 # libboost_math_tr1f, libboost_math_tr1l). This macro must be fixed to do the
655 # right thing anyway.
657 [BOOST_FIND_HEADER([boost/math/special_functions.hpp])])
662 # Look for Boost.MultiArray
663 BOOST_DEFUN([MultiArray],
664 [BOOST_FIND_HEADER([boost/multi_array.hpp])])
667 # BOOST_NUMERIC_CONVERSION()
668 # --------------------------
669 # Look for Boost.NumericConversion (policy-based numeric conversion)
670 BOOST_DEFUN([Numeric_Conversion],
671 [BOOST_FIND_HEADER([boost/numeric/conversion/converter.hpp])
672 ])# BOOST_NUMERIC_CONVERSION
677 # Look for Boost.Optional
678 BOOST_DEFUN([Optional],
679 [BOOST_FIND_HEADER([boost/optional.hpp])])
682 # BOOST_PREPROCESSOR()
683 # --------------------
684 # Look for Boost.Preprocessor
685 BOOST_DEFUN([Preprocessor],
686 [BOOST_FIND_HEADER([boost/preprocessor/repeat.hpp])])
691 # Look for Boost.Unordered
692 BOOST_DEFUN([Unordered],
693 [BOOST_FIND_HEADER([boost/unordered_map.hpp])])
698 # Look for Boost.Uuid
700 [BOOST_FIND_HEADER([boost/uuid/uuid.hpp])])
703 # BOOST_PROGRAM_OPTIONS([PREFERRED-RT-OPT])
704 # -----------------------------------------
705 # Look for Boost.Program_options. For the documentation of PREFERRED-RT-OPT,
706 # see the documentation of BOOST_FIND_LIB above.
707 BOOST_DEFUN([Program_Options],
708 [BOOST_FIND_LIB([program_options], [$1],
709 [boost/program_options.hpp],
710 [boost::program_options::options_description d("test");])
711 ])# BOOST_PROGRAM_OPTIONS
715 # _BOOST_PYTHON_CONFIG(VARIABLE, FLAG)
716 # ------------------------------------
717 # Save VARIABLE, and define it via `python-config --FLAG`.
718 # Substitute BOOST_PYTHON_VARIABLE.
719 m4_define([_BOOST_PYTHON_CONFIG],
720 [AC_SUBST([BOOST_PYTHON_$1],
721 [`python-config --$2 2>/dev/null`])dnl
722 boost_python_save_$1=$$1
723 $1="$$1 $BOOST_PYTHON_$1"])
726 # BOOST_PYTHON([PREFERRED-RT-OPT])
727 # --------------------------------
728 # Look for Boost.Python. For the documentation of PREFERRED-RT-OPT,
729 # see the documentation of BOOST_FIND_LIB above.
730 BOOST_DEFUN([Python],
731 [_BOOST_PYTHON_CONFIG([CPPFLAGS], [includes])
732 _BOOST_PYTHON_CONFIG([LDFLAGS], [ldflags])
733 _BOOST_PYTHON_CONFIG([LIBS], [libs])
734 m4_pattern_allow([^BOOST_PYTHON_MODULE$])dnl
735 BOOST_FIND_LIB([python], [$1],
737 [], [BOOST_PYTHON_MODULE(empty) {}])
738 CPPFLAGS=$boost_python_save_CPPFLAGS
739 LDFLAGS=$boost_python_save_LDFLAGS
740 LIBS=$boost_python_save_LIBS
748 [BOOST_FIND_HEADER([boost/ref.hpp])])
751 # BOOST_REGEX([PREFERRED-RT-OPT])
752 # -------------------------------
753 # Look for Boost.Regex. For the documentation of PREFERRED-RT-OPT, see the
754 # documentation of BOOST_FIND_LIB above.
756 [BOOST_FIND_LIB([regex], [$1],
758 [boost::regex exp("*"); boost::regex_match("foo", exp);])
762 # BOOST_SERIALIZATION([PREFERRED-RT-OPT])
763 # ---------------------------------------
764 # Look for Boost.Serialization. For the documentation of PREFERRED-RT-OPT, see
765 # the documentation of BOOST_FIND_LIB above.
766 BOOST_DEFUN([Serialization],
767 [BOOST_FIND_LIB([serialization], [$1],
768 [boost/archive/text_oarchive.hpp],
769 [std::ostream* o = 0; // Cheap way to get an ostream...
770 boost::archive::text_oarchive t(*o);])
771 ])# BOOST_SERIALIZATION
774 # BOOST_SIGNALS([PREFERRED-RT-OPT])
775 # ---------------------------------
776 # Look for Boost.Signals. For the documentation of PREFERRED-RT-OPT, see the
777 # documentation of BOOST_FIND_LIB above.
778 BOOST_DEFUN([Signals],
779 [BOOST_FIND_LIB([signals], [$1],
781 [boost::signal<void ()> s;])
787 # Look for Boost.SmartPtr
788 BOOST_DEFUN([Smart_Ptr],
789 [BOOST_FIND_HEADER([boost/scoped_ptr.hpp])
790 BOOST_FIND_HEADER([boost/shared_ptr.hpp])
794 # BOOST_STATICASSERT()
795 # --------------------
796 # Look for Boost.StaticAssert
797 BOOST_DEFUN([StaticAssert],
798 [BOOST_FIND_HEADER([boost/static_assert.hpp])])
801 # BOOST_STRING_ALGO()
802 # -------------------
803 # Look for Boost.StringAlgo
804 BOOST_DEFUN([String_Algo],
805 [BOOST_FIND_HEADER([boost/algorithm/string.hpp])
809 # BOOST_SYSTEM([PREFERRED-RT-OPT], [ACTION-IF-NOT-FOUND])
810 # -------------------------------------------------------
811 # Look for Boost.System. For the documentation of PREFERRED-RT-OPT, see the
812 # documentation of BOOST_FIND_LIB above. This library was introduced in Boost
814 BOOST_DEFUN([System],
815 [BOOST_FIND_LIB([system], [$1],
816 [boost/system/error_code.hpp],
817 [boost::system::error_code e; e.clear();],
822 # BOOST_TEST([PREFERRED-RT-OPT])
823 # ------------------------------
824 # Look for Boost.Test. For the documentation of PREFERRED-RT-OPT, see the
825 # documentation of BOOST_FIND_LIB above.
827 [m4_pattern_allow([^BOOST_CHECK$])dnl
828 BOOST_FIND_LIB([unit_test_framework], [$1],
829 [boost/test/unit_test.hpp], [BOOST_CHECK(2 == 2);],
830 [using boost::unit_test::test_suite;
831 test_suite* init_unit_test_suite(int argc, char ** argv)
836 # BOOST_THREADS([PREFERRED-RT-OPT], [ACTION-IF-NOT-FOUND])
837 # --------------------------------------------------------
838 # Look for Boost.Thread. For the documentation of PREFERRED-RT-OPT, see the
839 # documentation of BOOST_FIND_LIB above. If ACTION-IF-NOT-FOUND is given,
840 # errors are non-fatal; if it's absent, errors are fatal.
841 # FIXME: Provide an alias "BOOST_THREAD".
842 BOOST_DEFUN([Threads],
843 [dnl Having the pthread flag is required at least on GCC3 where
844 dnl boost/thread.hpp would complain if we try to compile without
845 dnl -pthread on GNU/Linux.
846 AC_REQUIRE([_BOOST_PTHREAD_FLAG])dnl
847 boost_threads_save_LIBS=$LIBS
848 boost_threads_save_LDFLAGS=$LDFLAGS
849 boost_threads_save_CPPFLAGS=$CPPFLAGS
850 # Link-time dependency from thread to system was added as of 1.49.0.
851 if test $boost_major_version -ge 149; then
852 BOOST_SYSTEM([$1], [AC_MSG_WARN([[Boost system library (libboost-system) not installed or unusable; this may lead to problems with using threads. It is recommended that you install your distribution's libboost-system development package (probably named libboost-system###-dev, or boost-system-devel, or something like that).]])])
853 fi # end of the Boost.System check.
854 m4_pattern_allow([^BOOST_SYSTEM_(LIBS|LDFLAGS)$])dnl
855 LIBS="$LIBS $BOOST_SYSTEM_LIBS $boost_cv_pthread_flag"
856 LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
857 # Yes, we *need* to put the -pthread thing in CPPFLAGS because with GCC3,
858 # boost/thread.hpp will trigger a #error if -pthread isn't used:
859 # boost/config/requires_threads.hpp:47:5: #error "Compiler threading support
860 # is not turned on. Please set the correct command line options for
861 # threading: -pthread (Linux), -pthreads (Solaris) or -mthreads (Mingw32)"
862 CPPFLAGS="$CPPFLAGS $boost_cv_pthread_flag"
864 # When compiling for the Windows platform, the threads library is named
868 BOOST_FIND_LIB([thread_win32], [$1],
869 [boost/thread.hpp], [boost::thread t; boost::mutex m;], [], [$2])
870 BOOST_THREAD_LDFLAGS=$BOOST_THREAD_WIN32_LDFLAGS
871 BOOST_THREAD_LDPATH=$BOOST_THREAD_WIN32_LDPATH
872 BOOST_THREAD_LIBS=$BOOST_THREAD_WIN32_LIBS
875 BOOST_FIND_LIB([thread], [$1],
876 [boost/thread.hpp], [boost::thread t; boost::mutex m;], [], [$2])
880 BOOST_THREAD_LIBS="$BOOST_THREAD_LIBS $BOOST_SYSTEM_LIBS $boost_cv_pthread_flag"
881 BOOST_THREAD_LDFLAGS="$BOOST_SYSTEM_LDFLAGS"
882 BOOST_CPPFLAGS="$BOOST_CPPFLAGS $boost_cv_pthread_flag"
883 LIBS=$boost_threads_save_LIBS
884 LDFLAGS=$boost_threads_save_LDFLAGS
885 CPPFLAGS=$boost_threads_save_CPPFLAGS
891 # Look for Boost.Tokenizer
892 BOOST_DEFUN([Tokenizer],
893 [BOOST_FIND_HEADER([boost/tokenizer.hpp])])
898 # Look for Boost.Tribool
899 BOOST_DEFUN([Tribool],
900 [BOOST_FIND_HEADER([boost/logic/tribool_fwd.hpp])
901 BOOST_FIND_HEADER([boost/logic/tribool.hpp])
907 # Look for Boost.Tuple
909 [BOOST_FIND_HEADER([boost/tuple/tuple.hpp])])
913 # --------------------
914 # Look for Boost.TypeTraits
915 BOOST_DEFUN([TypeTraits],
916 [BOOST_FIND_HEADER([boost/type_traits.hpp])])
921 # Look for Boost.Utility (noncopyable, result_of, base-from-member idiom,
923 BOOST_DEFUN([Utility],
924 [BOOST_FIND_HEADER([boost/utility.hpp])])
929 # Look for Boost.Variant.
930 BOOST_DEFUN([Variant],
931 [BOOST_FIND_HEADER([boost/variant/variant_fwd.hpp])
932 BOOST_FIND_HEADER([boost/variant.hpp])])
935 # BOOST_WAVE([PREFERRED-RT-OPT])
936 # ------------------------------
937 # NOTE: If you intend to use Wave/Spirit with thread support, make sure you
938 # call BOOST_THREADS first.
939 # Look for Boost.Wave. For the documentation of PREFERRED-RT-OPT, see the
940 # documentation of BOOST_FIND_LIB above.
942 [AC_REQUIRE([BOOST_FILESYSTEM])dnl
943 AC_REQUIRE([BOOST_DATE_TIME])dnl
944 boost_wave_save_LIBS=$LIBS
945 boost_wave_save_LDFLAGS=$LDFLAGS
946 m4_pattern_allow([^BOOST_((FILE)?SYSTEM|DATE_TIME|THREAD)_(LIBS|LDFLAGS)$])dnl
947 LIBS="$LIBS $BOOST_SYSTEM_LIBS $BOOST_FILESYSTEM_LIBS $BOOST_DATE_TIME_LIBS \
949 LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS $BOOST_FILESYSTEM_LDFLAGS \
950 $BOOST_DATE_TIME_LDFLAGS $BOOST_THREAD_LDFLAGS"
951 BOOST_FIND_LIB([wave], [$1],
953 [boost::wave::token_id id; get_token_name(id);])
954 LIBS=$boost_wave_save_LIBS
955 LDFLAGS=$boost_wave_save_LDFLAGS
961 # Look for Boost.Xpressive (new since 1.36.0).
962 BOOST_DEFUN([Xpressive],
963 [BOOST_FIND_HEADER([boost/xpressive/xpressive.hpp])])
966 # ----------------- #
967 # Internal helpers. #
968 # ----------------- #
971 # _BOOST_PTHREAD_FLAG()
972 # ---------------------
973 # Internal helper for BOOST_THREADS. Based on ACX_PTHREAD:
974 # http://autoconf-archive.cryp.to/acx_pthread.html
975 AC_DEFUN([_BOOST_PTHREAD_FLAG],
976 [AC_REQUIRE([AC_PROG_CXX])dnl
977 AC_REQUIRE([AC_CANONICAL_HOST])dnl
978 AC_LANG_PUSH([C++])dnl
979 AC_CACHE_CHECK([for the flags needed to use pthreads], [boost_cv_pthread_flag],
980 [ boost_cv_pthread_flag=
981 # The ordering *is* (sometimes) important. Some notes on the
982 # individual items follow:
983 # (none): in case threads are in libc; should be tried before -Kthread and
984 # other compiler flags to prevent continual compiler warnings
985 # -lpthreads: AIX (must check this before -lpthread)
986 # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
987 # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
988 # -llthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
989 # -pthread: GNU Linux/GCC (kernel threads), BSD/GCC (userland threads)
990 # -pthreads: Solaris/GCC
991 # -mthreads: MinGW32/GCC, Lynx/GCC
992 # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
993 # doesn't hurt to check since this sometimes defines pthreads too;
994 # also defines -D_REENTRANT)
995 # ... -mt is also the pthreads flag for HP/aCC
996 # -lpthread: GNU Linux, etc.
997 # --thread-safe: KAI C++
1000 # On Solaris (at least, for some versions), libc contains stubbed
1001 # (non-functional) versions of the pthreads routines, so link-based
1002 # tests will erroneously succeed. (We need to link with -pthreads/-mt/
1003 # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
1004 # a function called by this macro, so we could check for that, but
1005 # who knows whether they'll stub that too in a future libc.) So,
1006 # we'll just look for -pthreads and -lpthread first:
1007 boost_pthread_flags="-pthreads -lpthread -mt -pthread";; #(
1009 boost_pthread_flags="-lpthreads -Kthread -kthread -llthread -pthread \
1010 -pthreads -mthreads -lpthread --thread-safe -mt";;
1012 # Generate the test file.
1013 AC_LANG_CONFTEST([AC_LANG_PROGRAM([#include <pthread.h>],
1014 [pthread_t th; pthread_join(th, 0);
1015 pthread_attr_init(0); pthread_cleanup_push(0, 0);
1016 pthread_create(0,0,0,0); pthread_cleanup_pop(0);])])
1017 for boost_pthread_flag in '' $boost_pthread_flags; do
1018 boost_pthread_ok=false
1019 dnl Re-use the test file already generated.
1020 boost_pthreads__save_LIBS=$LIBS
1021 LIBS="$LIBS $boost_pthread_flag"
1023 [if grep ".*$boost_pthread_flag" conftest.err; then
1024 echo "This flag seems to have triggered warnings" >&AS_MESSAGE_LOG_FD
1026 boost_pthread_ok=:; boost_cv_pthread_flag=$boost_pthread_flag
1028 LIBS=$boost_pthreads__save_LIBS
1029 $boost_pthread_ok && break
1032 AC_LANG_POP([C++])dnl
1033 ])# _BOOST_PTHREAD_FLAG
1036 # _BOOST_gcc_test(MAJOR, MINOR)
1037 # -----------------------------
1038 # Internal helper for _BOOST_FIND_COMPILER_TAG.
1039 m4_define([_BOOST_gcc_test],
1040 ["defined __GNUC__ && __GNUC__ == $1 && __GNUC_MINOR__ == $2 && !defined __ICC @ gcc$1$2"])dnl
1043 # _BOOST_FIND_COMPILER_TAG()
1044 # --------------------------
1045 # Internal. When Boost is installed without --layout=system, each library
1046 # filename will hold a suffix that encodes the compiler used during the
1047 # build. The Boost build system seems to call this a `tag'.
1048 AC_DEFUN([_BOOST_FIND_COMPILER_TAG],
1049 [AC_REQUIRE([AC_PROG_CXX])dnl
1050 AC_REQUIRE([AC_CANONICAL_HOST])dnl
1051 AC_CACHE_CHECK([for the toolset name used by Boost for $CXX], [boost_cv_lib_tag],
1052 [boost_cv_lib_tag=unknown
1053 if test x$boost_cv_inc_path != xno; then
1054 AC_LANG_PUSH([C++])dnl
1055 # The following tests are mostly inspired by boost/config/auto_link.hpp
1056 # The list is sorted to most recent/common to oldest compiler (in order
1057 # to increase the likelihood of finding the right compiler with the
1058 # least number of compilation attempt).
1059 # Beware that some tests are sensible to the order (for instance, we must
1060 # look for MinGW before looking for GCC3).
1061 # I used one compilation test per compiler with a #error to recognize
1062 # each compiler so that it works even when cross-compiling (let me know
1063 # if you know a better approach).
1064 # Known missing tags (known from Boost's tools/build/v2/tools/common.jam):
1065 # como, edg, kcc, bck, mp, sw, tru, xlc
1066 # I'm not sure about my test for `il' (be careful: Intel's ICC pre-defines
1067 # the same defines as GCC's).
1069 _BOOST_gcc_test(4, 8) \
1070 _BOOST_gcc_test(4, 7) \
1071 _BOOST_gcc_test(4, 6) \
1072 _BOOST_gcc_test(4, 5) \
1073 _BOOST_gcc_test(4, 4) \
1074 _BOOST_gcc_test(4, 3) \
1075 _BOOST_gcc_test(4, 2) \
1076 _BOOST_gcc_test(4, 1) \
1077 _BOOST_gcc_test(4, 0) \
1078 "defined __GNUC__ && __GNUC__ == 3 && !defined __ICC \
1079 && (defined WIN32 || defined WINNT || defined _WIN32 || defined __WIN32 \
1080 || defined __WIN32__ || defined __WINNT || defined __WINNT__) @ mgw" \
1081 _BOOST_gcc_test(3, 4) \
1082 _BOOST_gcc_test(3, 3) \
1083 "defined _MSC_VER && _MSC_VER >= 1500 @ vc90" \
1084 "defined _MSC_VER && _MSC_VER == 1400 @ vc80" \
1085 _BOOST_gcc_test(3, 2) \
1086 "defined _MSC_VER && _MSC_VER == 1310 @ vc71" \
1087 _BOOST_gcc_test(3, 1) \
1088 _BOOST_gcc_test(3, 0) \
1089 "defined __BORLANDC__ @ bcb" \
1090 "defined __ICC && (defined __unix || defined __unix__) @ il" \
1091 "defined __ICL @ iw" \
1092 "defined _MSC_VER && _MSC_VER == 1300 @ vc7" \
1093 _BOOST_gcc_test(2, 95) \
1094 "defined __MWERKS__ && __MWERKS__ <= 0x32FF @ cw9" \
1095 "defined _MSC_VER && _MSC_VER < 1300 && !defined UNDER_CE @ vc6" \
1096 "defined _MSC_VER && _MSC_VER < 1300 && defined UNDER_CE @ evc4" \
1097 "defined __MWERKS__ && __MWERKS__ <= 0x31FF @ cw8"
1099 boost_tag_test=`expr "X$i" : 'X\([[^@]]*\) @ '`
1100 boost_tag=`expr "X$i" : 'X[[^@]]* @ \(.*\)'`
1101 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1105 # error $boost_tag_test
1107 ]])], [boost_cv_lib_tag=$boost_tag; break], [])
1109 AC_LANG_POP([C++])dnl
1110 case $boost_cv_lib_tag in #(
1111 # Some newer (>= 1.35?) versions of Boost seem to only use "gcc" as opposed
1112 # to "gcc41" for instance.
1113 *-gcc | *'-gcc ') :;; #( Don't re-add -gcc: it's already in there.
1118 if test $boost_major_version -ge 136; then
1119 # The `x' added in r46793 of Boost.
1123 # We can specify multiple tags in this variable because it's used by
1124 # BOOST_FIND_LIB that does a `for tag in -$boost_cv_lib_tag' ...
1125 boost_cv_lib_tag="$boost_tag_x$boost_cv_lib_tag -${boost_tag_x}gcc"
1128 AC_MSG_WARN([[could not figure out which toolset name to use for $CXX]])
1132 fi])dnl end of AC_CACHE_CHECK
1133 ])# _BOOST_FIND_COMPILER_TAG
1136 # _BOOST_GUESS_WHETHER_TO_USE_MT()
1137 # --------------------------------
1138 # Compile a small test to try to guess whether we should favor MT (Multi
1139 # Thread) flavors of Boost. Sets boost_guess_use_mt accordingly.
1140 AC_DEFUN([_BOOST_GUESS_WHETHER_TO_USE_MT],
1141 [# Check whether we do better use `mt' even though we weren't ask to.
1142 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1143 #if defined _REENTRANT || defined _MT || defined __MT__
1146 # error MT not needed
1148 ]])], [boost_guess_use_mt=:], [boost_guess_use_mt=false])
1151 # _BOOST_AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
1152 # -------------------------------------------------------------------
1153 # Fork of _AC_LINK_IFELSE that preserves conftest.o across calls. Fragile,
1154 # will break when Autoconf changes its internals. Requires that you manually
1155 # rm -f conftest.$ac_objext in between to really different tests, otherwise
1156 # you will try to link a conftest.o left behind by a previous test.
1157 # Used to aggressively optimize BOOST_FIND_LIB (see the big comment in this
1160 # Don't use "break" in the actions, as it would short-circuit some code
1161 # this macro runs after the actions.
1162 m4_define([_BOOST_AC_LINK_IFELSE],
1163 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
1164 rm -f conftest$ac_exeext
1165 boost_save_ac_ext=$ac_ext
1167 # If we already have a .o, re-use it. We change $ac_ext so that $ac_link
1168 # tries to link the existing object file instead of compiling from source.
1169 test -f conftest.$ac_objext && ac_ext=$ac_objext && boost_use_source=false &&
1170 _AS_ECHO_LOG([re-using the existing conftest.$ac_objext])
1171 AS_IF([_AC_DO_STDERR($ac_link) && {
1172 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
1173 test ! -s conftest.err
1174 } && test -s conftest$ac_exeext && {
1175 test "$cross_compiling" = yes ||
1176 $as_executable_p conftest$ac_exeext
1177 dnl FIXME: use AS_TEST_X instead when 2.61 is widespread enough.
1180 [if $boost_use_source; then
1181 _AC_MSG_LOG_CONFTEST
1184 ac_objext=$boost_save_ac_objext
1185 ac_ext=$boost_save_ac_ext
1186 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
1187 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
1188 dnl as it would interfere with the next link command.
1189 rm -f core conftest.err conftest_ipa8_conftest.oo \
1190 conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
1191 ])# _BOOST_AC_LINK_IFELSE