sockets documentation and cleanup
[chaz/yoink] / m4 / boost.m4
1 # boost.m4: Locate Boost headers and libraries for autoconf-based projects.
2 # Copyright (C) 2007, 2008, 2009 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 # serial 10
25 # Original sources can be found at http://repo.or.cz/w/boost.m4.git
26 # You can fetch the latest version of the script by doing:
27 # wget 'http://repo.or.cz/w/boost.m4.git?a=blob_plain;f=build-aux/boost.m4;hb=HEAD' -O boost.m4
28
29 # ------ #
30 # README #
31 # ------ #
32
33 # This file provides several macros to use the various Boost libraries.
34 # The first macro is BOOST_REQUIRE. It will simply check if it's possible to
35 # find the Boost headers of a given (optional) minimum version and it will
36 # define BOOST_CPPFLAGS accordingly. It will add an option --with-boost to
37 # your configure so that users can specify non standard locations.
38 # If the user's environment contains BOOST_ROOT and --with-boost was not
39 # specified, --with-boost=$BOOST_ROOT is implicitly used.
40 # For more README and documentation, go to http://repo.or.cz/w/boost.m4.git
41 # Note: THESE MACROS ASSUME THAT YOU USE LIBTOOL. If you don't, don't worry,
42 # simply read the README, it will show you what to do step by step.
43
44 m4_pattern_forbid([^_?BOOST_])
45
46
47 # _BOOST_SED_CPP(SED-PROGRAM, PROGRAM,
48 # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
49 # --------------------------------------------------------
50 # Same as AC_EGREP_CPP, but leave the result in conftest.i.
51 # PATTERN is *not* overquoted, as in AC_EGREP_CPP. It could be useful
52 # to turn this into a macro which extracts the value of any macro.
53 m4_define([_BOOST_SED_CPP],
54 [AC_LANG_PREPROC_REQUIRE()dnl
55 AC_REQUIRE([AC_PROG_SED])dnl
56 AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])])
57 AS_IF([dnl eval is necessary to expand ac_cpp.
58 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
59 (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
60 $SED -n -e "$1" >conftest.i 2>&1],
61 [$3],
62 [$4])
63 rm -f conftest*
64 ])# AC_EGREP_CPP
65
66
67
68 # BOOST_REQUIRE([VERSION])
69 # ------------------------
70 # Look for Boost. If version is given, it must either be a literal of the form
71 # "X.Y.Z" where X, Y and Z are integers (the ".Z" part being optional) or a
72 # variable "$var".
73 # Defines the value BOOST_CPPFLAGS. This macro only checks for headers with
74 # the required version, it does not check for any of the Boost libraries.
75 # FIXME: Add a 2nd optional argument so that it's not fatal if Boost isn't found
76 # and add an AC_DEFINE to tell whether HAVE_BOOST.
77 AC_DEFUN([BOOST_REQUIRE],
78 [boost_save_IFS=$IFS
79 boost_version_req="$1"
80 IFS=.
81 set x $boost_version_req 0 0 0
82 IFS=$boost_save_IFS
83 shift
84 boost_version_req=`expr "$[1]" '*' 100000 + "$[2]" '*' 100 + "$[3]"`
85 AC_ARG_WITH([boost],
86 [AS_HELP_STRING([--with-boost=DIR],
87 [prefix of Boost $1 @<:@guess@:>@])])dnl
88 AC_ARG_VAR([BOOST_ROOT],[Location of Boost installation])dnl
89 # If BOOST_ROOT is set and the user has not provided a value to
90 # --with-boost, then treat BOOST_ROOT as if it the user supplied it.
91 if test x"$BOOST_ROOT" != x; then
92 if test x"$with_boost" = x; then
93 AC_MSG_NOTICE([Detected BOOST_ROOT; continuing with --with-boost=$BOOST_ROOT])
94 with_boost=$BOOST_ROOT
95 else
96 AC_MSG_NOTICE([Detected BOOST_ROOT=$BOOST_ROOT, but overridden by --with-boost=$with_boost])
97 fi
98 fi
99 AC_SUBST([DISTCHECK_CONFIGURE_FLAGS],
100 ["$DISTCHECK_CONFIGURE_FLAGS '--with-boost=$with_boost'"])
101 boost_save_CPPFLAGS=$CPPFLAGS
102 AC_CACHE_CHECK([for Boost headers version >= $boost_version_req],
103 [boost_cv_inc_path],
104 [boost_cv_inc_path=no
105 AC_LANG_PUSH([C++])dnl
106 m4_pattern_allow([^BOOST_VERSION$])dnl
107 AC_LANG_CONFTEST([AC_LANG_PROGRAM([[#include <boost/version.hpp>
108 #if !defined BOOST_VERSION
109 # error BOOST_VERSION is not defined
110 #elif BOOST_VERSION < $boost_version_req
111 # error Boost headers version < $boost_version_req
112 #endif
113 ]])])
114 # If the user provided a value to --with-boost, use it and only it.
115 case $with_boost in #(
116 ''|yes) set x '' /opt/local/include /usr/local/include /opt/include \
117 /usr/include C:/Boost/include;; #(
118 *) set x "$with_boost/include" "$with_boost";;
119 esac
120 shift
121 for boost_dir
122 do
123 # Without --layout=system, Boost (or at least some versions) installs
124 # itself in <prefix>/include/boost-<version>. This inner loop helps to
125 # find headers in such directories.
126 # I didn't indent this loop on purpose (to avoid over-indented code)
127 for boost_inc in "$boost_dir" "$boost_dir"/boost-*
128 do
129 test x"$boost_inc" != x && CPPFLAGS="$CPPFLAGS -I$boost_inc"
130 AC_COMPILE_IFELSE([], [boost_cv_inc_path=yes], [boost_cv_version=no])
131 if test x"$boost_cv_inc_path" = xyes; then
132 if test x"$boost_inc" != x; then
133 boost_cv_inc_path=$boost_inc
134 fi
135 break 2
136 fi
137 done
138 done
139 AC_LANG_POP([C++])dnl
140 ])
141 case $boost_cv_inc_path in #(
142 no) AC_MSG_ERROR([cannot find Boost headers version >= $boost_version_req]);;#(
143 yes) BOOST_CPPFLAGS=;;#(
144 *) AC_SUBST([BOOST_CPPFLAGS], ["-I$boost_cv_inc_path"]);;
145 esac
146 AC_CACHE_CHECK([for Boost's header version],
147 [boost_cv_lib_version],
148 [m4_pattern_allow([^BOOST_LIB_VERSION$])dnl
149 _BOOST_SED_CPP([/^boost-lib-version = /{s///;s/\"//g;p;g;}],
150 [#include <boost/version.hpp>
151 boost-lib-version = BOOST_LIB_VERSION],
152 [boost_cv_lib_version=`cat conftest.i`])])
153 # e.g. "134" for 1_34_1 or "135" for 1_35
154 boost_major_version=`echo "$boost_cv_lib_version" | sed 's/_//;s/_.*//'`
155 case $boost_major_version in #(
156 '' | *[[!0-9]]*)
157 AC_MSG_ERROR([Invalid value: boost_major_version=$boost_major_version])
158 ;;
159 esac
160 CPPFLAGS=$boost_save_CPPFLAGS
161 ])# BOOST_REQUIRE
162
163 # BOOST_STATIC()
164 # --------------
165 # Add the "--enable-static-boost" configure argument. If this argument is given
166 # on the command line, static versions of the libraries will be looked up.
167 AC_DEFUN([BOOST_STATIC],
168 [AC_ARG_ENABLE([static-boost],
169 [AC_HELP_STRING([--enable-static-boost],
170 [Prefer the static boost libraries over the shared ones [no]])],
171 [enable_static_boost=yes],
172 [enable_static_boost=no])])# BOOST_STATIC
173
174 # BOOST_FIND_HEADER([HEADER-NAME], [ACTION-IF-NOT-FOUND], [ACTION-IF-FOUND])
175 # --------------------------------------------------------------------------
176 # Wrapper around AC_CHECK_HEADER for Boost headers. Useful to check for
177 # some parts of the Boost library which are only made of headers and don't
178 # require linking (such as Boost.Foreach).
179 #
180 # Default ACTION-IF-NOT-FOUND: Fail with a fatal error.
181 #
182 # Default ACTION-IF-FOUND: define the preprocessor symbol HAVE_<HEADER-NAME> in
183 # case of success # (where HEADER-NAME is written LIKE_THIS, e.g.,
184 # HAVE_BOOST_FOREACH_HPP).
185 AC_DEFUN([BOOST_FIND_HEADER],
186 [AC_REQUIRE([BOOST_REQUIRE])dnl
187 AC_LANG_PUSH([C++])dnl
188 boost_save_CPPFLAGS=$CPPFLAGS
189 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
190 AC_CHECK_HEADER([$1],
191 [m4_default([$3], [AC_DEFINE(AS_TR_CPP([HAVE_$1]), [1],
192 [Define to 1 if you have <$1>])])],
193 [m4_default([$2], [AC_MSG_ERROR([cannot find $1])])])
194 CPPFLAGS=$boost_save_CPPFLAGS
195 AC_LANG_POP([C++])dnl
196 ])# BOOST_FIND_HEADER
197
198
199 # BOOST_FIND_LIB([LIB-NAME], [PREFERRED-RT-OPT], [HEADER-NAME], [CXX-TEST],
200 # [CXX-PROLOGUE])
201 # -------------------------------------------------------------------------
202 # Look for the Boost library LIB-NAME (e.g., LIB-NAME = `thread', for
203 # libboost_thread). Check that HEADER-NAME works and check that
204 # libboost_LIB-NAME can link with the code CXX-TEST. The optional argument
205 # CXX-PROLOGUE can be used to include some C++ code before the `main'
206 # function.
207 #
208 # Invokes BOOST_FIND_HEADER([HEADER-NAME]) (see above).
209 #
210 # Boost libraries typically come compiled with several flavors (with different
211 # runtime options) so PREFERRED-RT-OPT is the preferred suffix. A suffix is one
212 # or more of the following letters: sgdpn (in that order). s = static
213 # runtime, d = debug build, g = debug/diagnostic runtime, p = STLPort build,
214 # n = (unsure) STLPort build without iostreams from STLPort (it looks like `n'
215 # must always be used along with `p'). Additionally, PREFERRED-RT-OPT can
216 # start with `mt-' to indicate that there is a preference for multi-thread
217 # builds. Some sample values for PREFERRED-RT-OPT: (nothing), mt, d, mt-d, gdp
218 # ... If you want to make sure you have a specific version of Boost
219 # (eg, >= 1.33) you *must* invoke BOOST_REQUIRE before this macro.
220 AC_DEFUN([BOOST_FIND_LIB],
221 [AC_REQUIRE([_BOOST_FIND_COMPILER_TAG])dnl
222 AC_REQUIRE([BOOST_REQUIRE])dnl
223 AC_REQUIRE([BOOST_STATIC])dnl
224 AC_REQUIRE([_BOOST_GUESS_WHETHER_TO_USE_MT])dnl
225 AC_LANG_PUSH([C++])dnl
226 AS_VAR_PUSHDEF([Boost_lib], [boost_cv_lib_$1])dnl
227 AS_VAR_PUSHDEF([Boost_lib_LDFLAGS], [boost_cv_lib_$1_LDFLAGS])dnl
228 AS_VAR_PUSHDEF([Boost_lib_LIBS], [boost_cv_lib_$1_LIBS])dnl
229 BOOST_FIND_HEADER([$3])
230 boost_save_CPPFLAGS=$CPPFLAGS
231 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
232 # Now let's try to find the library. The algorithm is as follows: first look
233 # for a given library name according to the user's PREFERRED-RT-OPT. For each
234 # library name, we prefer to use the ones that carry the tag (toolset name).
235 # Each library is searched through the various standard paths were Boost is
236 # usually installed. If we can't find the standard variants, we try to
237 # enforce -mt (for instance on MacOSX, libboost_threads.dylib doesn't exist
238 # but there's -obviously- libboost_threads-mt.dylib).
239 AC_CACHE_CHECK([for the Boost $1 library], [Boost_lib],
240 [Boost_lib=no
241 case "$2" in #(
242 mt | mt-) boost_mt=-mt; boost_rtopt=;; #(
243 mt* | mt-*) boost_mt=-mt; boost_rtopt=`expr "X$2" : 'Xmt-*\(.*\)'`;; #(
244 *) boost_mt=; boost_rtopt=$2;;
245 esac
246 if test $enable_static_boost = yes; then
247 boost_rtopt="s$boost_rtopt"
248 fi
249 # Find the proper debug variant depending on what we've been asked to find.
250 case $boost_rtopt in #(
251 *d*) boost_rt_d=$boost_rtopt;; #(
252 *[[sgpn]]*) # Insert the `d' at the right place (in between `sg' and `pn')
253 boost_rt_d=`echo "$boost_rtopt" | sed 's/\(s*g*\)\(p*n*\)/\1\2/'`;; #(
254 *) boost_rt_d='-d';;
255 esac
256 # If the PREFERRED-RT-OPT are not empty, prepend a `-'.
257 test -n "$boost_rtopt" && boost_rtopt="-$boost_rtopt"
258 $boost_guess_use_mt && boost_mt=-mt
259 # Look for the abs path the static archive.
260 # $libext is computed by Libtool but let's make sure it's non empty.
261 test -z "$libext" &&
262 AC_MSG_ERROR([the libext variable is empty, did you invoke Libtool?])
263 boost_save_ac_objext=$ac_objext
264 # Generate the test file.
265 AC_LANG_CONFTEST([AC_LANG_PROGRAM([#include <$3>
266 $5], [$4])])
267 dnl Optimization hacks: compiling C++ is slow, especially with Boost. What
268 dnl we're trying to do here is guess the right combination of link flags
269 dnl (LIBS / LDFLAGS) to use a given library. This can take several
270 dnl iterations before it succeeds and is thus *very* slow. So what we do
271 dnl instead is that we compile the code first (and thus get an object file,
272 dnl typically conftest.o). Then we try various combinations of link flags
273 dnl until we succeed to link conftest.o in an executable. The problem is
274 dnl that the various TRY_LINK / COMPILE_IFELSE macros of Autoconf always
275 dnl remove all the temporary files including conftest.o. So the trick here
276 dnl is to temporarily change the value of ac_objext so that conftest.o is
277 dnl preserved accross tests. This is obviously fragile and I will burn in
278 dnl hell for not respecting Autoconf's documented interfaces, but in the
279 dnl mean time, it optimizes the macro by a factor of 5 to 30.
280 dnl Another small optimization: the first argument of AC_COMPILE_IFELSE left
281 dnl empty because the test file is generated only once above (before we
282 dnl start the for loops).
283 AC_COMPILE_IFELSE([],
284 [ac_objext=do_not_rm_me_plz],
285 [AC_MSG_ERROR([Cannot compile a test that uses Boost $1])])
286 ac_objext=$boost_save_ac_objext
287 boost_failed_libs=
288 # Don't bother to ident the 6 nested for loops, only the 2 innermost ones
289 # matter.
290 for boost_tag_ in -$boost_cv_lib_tag ''; do
291 for boost_ver_ in -$boost_cv_lib_version ''; do
292 for boost_mt_ in $boost_mt -mt ''; do
293 for boost_rtopt_ in $boost_rtopt '' -d; do
294 for boost_lib in \
295 boost_$1$boost_tag_$boost_mt_$boost_rtopt_$boost_ver_ \
296 boost_$1$boost_tag_$boost_rtopt_$boost_ver_ \
297 boost_$1$boost_tag_$boost_mt_$boost_ver_ \
298 boost_$1$boost_tag_$boost_ver_
299 do
300 # Avoid testing twice the same lib
301 case $boost_failed_libs in #(
302 *@$boost_lib@*) continue;;
303 esac
304 # If with_boost is empty, we'll search in /lib first, which is not quite
305 # right so instead we'll try to a location based on where the headers are.
306 boost_tmp_lib=$with_boost
307 test x"$with_boost" = x && boost_tmp_lib=${boost_cv_inc_path%/include}
308 for boost_ldpath in "$boost_tmp_lib/lib" '' \
309 /opt/local/lib /usr/local/lib /opt/lib /usr/lib \
310 "$with_boost" C:/Boost/lib /lib /usr/lib64 /lib64
311 do
312 test -e "$boost_ldpath" || continue
313 boost_save_LDFLAGS=$LDFLAGS
314 # Are we looking for a static library?
315 case $boost_ldpath:$boost_rtopt_ in #(
316 *?*:*s*) # Yes (Non empty boost_ldpath + s in rt opt)
317 Boost_lib_LIBS="$boost_ldpath/lib$boost_lib.$libext"
318 test -e "$Boost_lib_LIBS" || continue;; #(
319 *) # No: use -lboost_foo to find the shared library.
320 Boost_lib_LIBS="-l$boost_lib";;
321 esac
322 boost_save_LIBS=$LIBS
323 LIBS="$Boost_lib_LIBS $LIBS"
324 test x"$boost_ldpath" != x && LDFLAGS="$LDFLAGS -L$boost_ldpath"
325 dnl First argument of AC_LINK_IFELSE left empty because the test file is
326 dnl generated only once above (before we start the for loops).
327 _BOOST_AC_LINK_IFELSE([],
328 [Boost_lib=yes], [Boost_lib=no])
329 ac_objext=$boost_save_ac_objext
330 LDFLAGS=$boost_save_LDFLAGS
331 LIBS=$boost_save_LIBS
332 if test x"$Boost_lib" = xyes; then
333 Boost_lib_LDFLAGS="-L$boost_ldpath -R$boost_ldpath"
334 break 6
335 else
336 boost_failed_libs="$boost_failed_libs@$boost_lib@"
337 fi
338 done
339 done
340 done
341 done
342 done
343 done
344 rm -f conftest.$ac_objext
345 ])
346 case $Boost_lib in #(
347 no) AC_MSG_ERROR([Could not find the flags to link with Boost $1])
348 ;;
349 esac
350 AC_SUBST(AS_TR_CPP([BOOST_$1_LDFLAGS]), [$Boost_lib_LDFLAGS])
351 AC_SUBST(AS_TR_CPP([BOOST_$1_LIBS]), [$Boost_lib_LIBS])
352 CPPFLAGS=$boost_save_CPPFLAGS
353 AS_VAR_POPDEF([Boost_lib])dnl
354 AS_VAR_POPDEF([Boost_lib_LDFLAGS])dnl
355 AS_VAR_POPDEF([Boost_lib_LIBS])dnl
356 AC_LANG_POP([C++])dnl
357 ])# BOOST_FIND_LIB
358
359
360 # --------------------------------------- #
361 # Checks for the various Boost libraries. #
362 # --------------------------------------- #
363
364 # List of boost libraries: http://www.boost.org/libs/libraries.htm
365 # The page http://beta.boost.org/doc/libs is useful: it gives the first release
366 # version of each library (among other things).
367
368
369 # BOOST_ASIO()
370 # ------------
371 # Look for Boost.Asio (new in Boost 1.35).
372 AC_DEFUN([BOOST_ASIO],
373 [AC_REQUIRE([BOOST_SYSTEM])dnl
374 BOOST_FIND_HEADER([boost/asio.hpp])])
375
376
377 # BOOST_BIND()
378 # ------------
379 # Look for Boost.Bind
380 AC_DEFUN([BOOST_BIND],
381 [BOOST_FIND_HEADER([boost/bind.hpp])])
382
383
384 # BOOST_CONVERSION()
385 # ------------------
386 # Look for Boost.Conversion (cast / lexical_cast)
387 AC_DEFUN([BOOST_CONVERSION],
388 [BOOST_FIND_HEADER([boost/cast.hpp])
389 BOOST_FIND_HEADER([boost/lexical_cast.hpp])
390 ])# BOOST_CONVERSION
391
392
393 # BOOST_DATE_TIME([PREFERRED-RT-OPT])
394 # -----------------------------------
395 # Look for Boost.Date_Time. For the documentation of PREFERRED-RT-OPT, see the
396 # documentation of BOOST_FIND_LIB above.
397 AC_DEFUN([BOOST_DATE_TIME],
398 [BOOST_FIND_LIB([date_time], [$1],
399 [boost/date_time/posix_time/posix_time.hpp],
400 [boost::posix_time::ptime t;])
401 ])# BOOST_DATE_TIME
402
403
404 # BOOST_FILESYSTEM([PREFERRED-RT-OPT])
405 # ------------------------------------
406 # Look for Boost.Filesystem. For the documentation of PREFERRED-RT-OPT, see
407 # the documentation of BOOST_FIND_LIB above.
408 # Do not check for boost/filesystem.hpp because this file was introduced in
409 # 1.34.
410 AC_DEFUN([BOOST_FILESYSTEM],
411 [# Do we have to check for Boost.System? This link-time dependency was
412 # added as of 1.35.0. If we have a version <1.35, we must not attempt to
413 # find Boost.System as it didn't exist by then.
414 if test $boost_major_version -ge 135; then
415 BOOST_SYSTEM([$1])
416 fi # end of the Boost.System check.
417 boost_filesystem_save_LIBS=$LIBS
418 boost_filesystem_save_LDFLAGS=$LDFLAGS
419 m4_pattern_allow([^BOOST_SYSTEM_(LIBS|LDFLAGS)$])dnl
420 LIBS="$LIBS $BOOST_SYSTEM_LIBS"
421 LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS"
422 BOOST_FIND_LIB([filesystem], [$1],
423 [boost/filesystem/path.hpp], [boost::filesystem::path p;])
424 LIBS=$boost_filesystem_save_LIBS
425 LDFLAGS=$boost_filesystem_save_LDFLAGS
426 ])# BOOST_FILESYSTEM
427
428
429 # BOOST_FOREACH()
430 # ---------------
431 # Look for Boost.Foreach
432 AC_DEFUN([BOOST_FOREACH],
433 [BOOST_FIND_HEADER([boost/foreach.hpp])])
434
435
436 # BOOST_FORMAT()
437 # --------------
438 # Look for Boost.Format
439 # Note: we can't check for boost/format/format_fwd.hpp because the header isn't
440 # standalone. It can't be compiled because it triggers the following error:
441 # boost/format/detail/config_macros.hpp:88: error: 'locale' in namespace 'std'
442 # does not name a type
443 AC_DEFUN([BOOST_FORMAT],
444 [BOOST_FIND_HEADER([boost/format.hpp])])
445
446
447 # BOOST_FUNCTION()
448 # ----------------
449 # Look for Boost.Function
450 AC_DEFUN([BOOST_FUNCTION],
451 [BOOST_FIND_HEADER([boost/function.hpp])])
452
453
454 # BOOST_GRAPH([PREFERRED-RT-OPT])
455 # -------------------------------
456 # Look for Boost.Graphs. For the documentation of PREFERRED-RT-OPT, see the
457 # documentation of BOOST_FIND_LIB above.
458 AC_DEFUN([BOOST_GRAPH],
459 [BOOST_FIND_LIB([graph], [$1],
460 [boost/graph/adjacency_list.hpp], [boost::adjacency_list<> g;])
461 ])# BOOST_GRAPH
462
463
464 # BOOST_IOSTREAMS([PREFERRED-RT-OPT])
465 # -------------------------------
466 # Look for Boost.IOStreams. For the documentation of PREFERRED-RT-OPT, see the
467 # documentation of BOOST_FIND_LIB above.
468 AC_DEFUN([BOOST_IOSTREAMS],
469 [BOOST_FIND_LIB([iostreams], [$1],
470 [boost/iostreams/device/file_descriptor.hpp],
471 [boost::iostreams::file_descriptor fd(0); fd.close();])
472 ])# BOOST_IOSTREAMS
473
474
475 # BOOST_HASH()
476 # ------------
477 # Look for Boost.Functional/Hash
478 AC_DEFUN([BOOST_HASH],
479 [BOOST_FIND_HEADER([boost/functional/hash.hpp])])
480
481
482 # BOOST_LAMBDA()
483 # --------------
484 # Look for Boost.Lambda
485 AC_DEFUN([BOOST_LAMBDA],
486 [BOOST_FIND_HEADER([boost/lambda/lambda.hpp])])
487
488
489 # BOOST_OPTIONAL()
490 # ----------------
491 # Look for Boost.Optional
492 AC_DEFUN([BOOST_OPTIONAL],
493 [BOOST_FIND_HEADER([boost/optional.hpp])])
494
495
496 # BOOST_PREPROCESSOR()
497 # --------------------
498 # Look for Boost.Preprocessor
499 AC_DEFUN([BOOST_PREPROCESSOR],
500 [BOOST_FIND_HEADER([boost/preprocessor/repeat.hpp])])
501
502
503 # BOOST_PROGRAM_OPTIONS([PREFERRED-RT-OPT])
504 # -----------------------------------------
505 # Look for Boost.Program_options. For the documentation of PREFERRED-RT-OPT, see
506 # the documentation of BOOST_FIND_LIB above.
507 AC_DEFUN([BOOST_PROGRAM_OPTIONS],
508 [BOOST_FIND_LIB([program_options], [$1],
509 [boost/program_options.hpp],
510 [boost::program_options::options_description d("test");])
511 ])# BOOST_PROGRAM_OPTIONS
512
513
514 # BOOST_REF()
515 # -----------
516 # Look for Boost.Ref
517 AC_DEFUN([BOOST_REF],
518 [BOOST_FIND_HEADER([boost/ref.hpp])])
519
520
521 # BOOST_REGEX([PREFERRED-RT-OPT])
522 # -------------------------------
523 # Look for Boost.Regex. For the documentation of PREFERRED-RT-OPT, see the
524 # documentation of BOOST_FIND_LIB above.
525 AC_DEFUN([BOOST_REGEX],
526 [BOOST_FIND_LIB([regex], [$1],
527 [boost/regex.hpp],
528 [boost::regex exp("*"); boost::regex_match("foo", exp);])
529 ])# BOOST_REGEX
530
531
532 # BOOST_SERIALIZATION([PREFERRED-RT-OPT])
533 # ---------------------------------------
534 # Look for Boost.Serialization. For the documentation of PREFERRED-RT-OPT, see
535 # the documentation of BOOST_FIND_LIB above.
536 AC_DEFUN([BOOST_SERIALIZATION],
537 [BOOST_FIND_LIB([serialization], [$1],
538 [boost/archive/text_oarchive.hpp],
539 [std::ostream* o = 0; // Cheap way to get an ostream...
540 boost::archive::text_oarchive t(*o);])
541 ])# BOOST_SIGNALS
542
543
544 # BOOST_SIGNALS([PREFERRED-RT-OPT])
545 # ---------------------------------
546 # Look for Boost.Signals. For the documentation of PREFERRED-RT-OPT, see the
547 # documentation of BOOST_FIND_LIB above.
548 AC_DEFUN([BOOST_SIGNALS],
549 [BOOST_FIND_LIB([signals], [$1],
550 [boost/signal.hpp],
551 [boost::signal<void ()> s;])
552 ])# BOOST_SIGNALS
553
554
555 # BOOST_SMART_PTR()
556 # -----------------
557 # Look for Boost.SmartPtr
558 AC_DEFUN([BOOST_SMART_PTR],
559 [BOOST_FIND_HEADER([boost/scoped_ptr.hpp])
560 BOOST_FIND_HEADER([boost/shared_ptr.hpp])
561 ])
562
563
564 # BOOST_STATICASSERT()
565 # --------------------
566 # Look for Boost.StaticAssert
567 AC_DEFUN([BOOST_STATICASSERT],
568 [BOOST_FIND_HEADER([boost/static_assert.hpp])])
569
570
571 # BOOST_STRING_ALGO()
572 # -------------------
573 # Look for Boost.StringAlgo
574 AC_DEFUN([BOOST_STRING_ALGO],
575 [BOOST_FIND_HEADER([boost/algorithm/string.hpp])
576 ])
577
578
579 # BOOST_SYSTEM([PREFERRED-RT-OPT])
580 # --------------------------------
581 # Look for Boost.System. For the documentation of PREFERRED-RT-OPT, see the
582 # documentation of BOOST_FIND_LIB above. This library was introduced in Boost
583 # 1.35.0.
584 AC_DEFUN([BOOST_SYSTEM],
585 [BOOST_FIND_LIB([system], [$1],
586 [boost/system/error_code.hpp],
587 [boost::system::error_code e; e.clear();])
588 ])# BOOST_SYSTEM
589
590
591 # BOOST_TEST([PREFERRED-RT-OPT])
592 # ------------------------------
593 # Look for Boost.Test. For the documentation of PREFERRED-RT-OPT, see the
594 # documentation of BOOST_FIND_LIB above.
595 AC_DEFUN([BOOST_TEST],
596 [m4_pattern_allow([^BOOST_CHECK$])dnl
597 BOOST_FIND_LIB([unit_test_framework], [$1],
598 [boost/test/unit_test.hpp], [BOOST_CHECK(2 == 2);],
599 [using boost::unit_test::test_suite;
600 test_suite* init_unit_test_suite(int argc, char ** argv)
601 { return NULL; }])
602 ])# BOOST_TEST
603
604
605 # BOOST_THREADS([PREFERRED-RT-OPT])
606 # ---------------------------------
607 # Look for Boost.Thread. For the documentation of PREFERRED-RT-OPT, see the
608 # documentation of BOOST_FIND_LIB above.
609 # FIXME: Provide an alias "BOOST_THREAD".
610 AC_DEFUN([BOOST_THREADS],
611 [dnl Having the pthread flag is required at least on GCC3 where
612 dnl boost/thread.hpp would complain if we try to compile without
613 dnl -pthread on GNU/Linux.
614 AC_REQUIRE([_BOOST_PTHREAD_FLAG])dnl
615 boost_threads_save_LIBS=$LIBS
616 boost_threads_save_CPPFLAGS=$CPPFLAGS
617 LIBS="$LIBS $boost_cv_pthread_flag"
618 # Yes, we *need* to put the -pthread thing in CPPFLAGS because with GCC3,
619 # boost/thread.hpp will trigger a #error if -pthread isn't used:
620 # boost/config/requires_threads.hpp:47:5: #error "Compiler threading support
621 # is not turned on. Please set the correct command line options for
622 # threading: -pthread (Linux), -pthreads (Solaris) or -mthreads (Mingw32)"
623 CPPFLAGS="$CPPFLAGS $boost_cv_pthread_flag"
624 BOOST_FIND_LIB([thread], [$1],
625 [boost/thread.hpp], [boost::thread t; boost::mutex m;])
626 BOOST_THREAD_LIBS="$BOOST_THREAD_LIBS $boost_cv_pthread_flag"
627 BOOST_CPPFLAGS="$BOOST_CPPFLAGS $boost_cv_pthread_flag"
628 LIBS=$boost_threads_save_LIBS
629 CPPFLAGS=$boost_threads_save_CPPFLAGS
630 ])# BOOST_THREADS
631
632
633 # BOOST_TOKENIZER()
634 # -----------------
635 # Look for Boost.Tokenizer
636 AC_DEFUN([BOOST_TOKENIZER],
637 [BOOST_FIND_HEADER([boost/tokenizer.hpp])])
638
639
640 # BOOST_TRIBOOL()
641 # ---------------
642 # Look for Boost.Tribool
643 AC_DEFUN([BOOST_TRIBOOL],
644 [BOOST_FIND_HEADER([boost/logic/tribool_fwd.hpp])
645 BOOST_FIND_HEADER([boost/logic/tribool.hpp])
646 ])
647
648
649 # BOOST_TUPLE()
650 # -------------
651 # Look for Boost.Tuple
652 AC_DEFUN([BOOST_TUPLE],
653 [BOOST_FIND_HEADER([boost/tuple/tuple.hpp])])
654
655
656 # BOOST_TYPETRAITS()
657 # --------------------
658 # Look for Boost.TypeTraits
659 AC_DEFUN([BOOST_TYPETRAITS],
660 [BOOST_FIND_HEADER([boost/type_traits.hpp])])
661
662
663 # BOOST_UTILITY()
664 # ---------------
665 # Look for Boost.Utility (noncopyable, result_of, base-from-member idiom,
666 # etc.)
667 AC_DEFUN([BOOST_UTILITY],
668 [BOOST_FIND_HEADER([boost/utility.hpp])])
669
670
671 # BOOST_VARIANT()
672 # ---------------
673 # Look for Boost.Variant.
674 AC_DEFUN([BOOST_VARIANT],
675 [BOOST_FIND_HEADER([boost/variant/variant_fwd.hpp])
676 BOOST_FIND_HEADER([boost/variant.hpp])])
677
678
679 # BOOST_WAVE([PREFERRED-RT-OPT])
680 # ------------------------------
681 # NOTE: If you intend to use Wave/Spirit with thread support, make sure you
682 # call BOOST_THREADS first.
683 # Look for Boost.Wave. For the documentation of PREFERRED-RT-OPT, see the
684 # documentation of BOOST_FIND_LIB above.
685 AC_DEFUN([BOOST_WAVE],
686 [AC_REQUIRE([BOOST_FILESYSTEM])dnl
687 AC_REQUIRE([BOOST_DATE_TIME])dnl
688 boost_wave_save_LIBS=$LIBS
689 boost_wave_save_LDFLAGS=$LDFLAGS
690 m4_pattern_allow([^BOOST_((FILE)?SYSTEM|DATE_TIME|THREAD)_(LIBS|LDFLAGS)$])dnl
691 LIBS="$LIBS $BOOST_SYSTEM_LIBS $BOOST_FILESYSTEM_LIBS $BOOST_DATE_TIME_LIBS\
692 $BOOST_THREAD_LIBS"
693 LDFLAGS="$LDFLAGS $BOOST_SYSTEM_LDFLAGS $BOOST_FILESYSTEM_LDFLAGS\
694 $BOOST_DATE_TIME_LDFLAGS $BOOST_THREAD_LDFLAGS"
695 BOOST_FIND_LIB([wave], [$1],
696 [boost/wave.hpp],
697 [boost::wave::token_id id; get_token_name(id);])
698 LIBS=$boost_wave_save_LIBS
699 LDFLAGS=$boost_wave_save_LDFLAGS
700 ])# BOOST_WAVE
701
702
703 # BOOST_XPRESSIVE()
704 # -----------------
705 # Look for Boost.Xpressive (new since 1.36.0).
706 AC_DEFUN([BOOST_XPRESSIVE],
707 [BOOST_FIND_HEADER([boost/xpressive/xpressive.hpp])])
708
709
710 # ----------------- #
711 # Internal helpers. #
712 # ----------------- #
713
714
715 # _BOOST_PTHREAD_FLAG()
716 # ---------------------
717 # Internal helper for BOOST_THREADS. Based on ACX_PTHREAD:
718 # http://autoconf-archive.cryp.to/acx_pthread.html
719 AC_DEFUN([_BOOST_PTHREAD_FLAG],
720 [AC_REQUIRE([AC_PROG_CXX])dnl
721 AC_REQUIRE([AC_CANONICAL_HOST])dnl
722 AC_LANG_PUSH([C++])dnl
723 AC_CACHE_CHECK([for the flags needed to use pthreads], [boost_cv_pthread_flag],
724 [ boost_cv_pthread_flag=
725 # The ordering *is* (sometimes) important. Some notes on the
726 # individual items follow:
727 # (none): in case threads are in libc; should be tried before -Kthread and
728 # other compiler flags to prevent continual compiler warnings
729 # -lpthreads: AIX (must check this before -lpthread)
730 # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
731 # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
732 # -llthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
733 # -pthread: GNU Linux/GCC (kernel threads), BSD/GCC (userland threads)
734 # -pthreads: Solaris/GCC
735 # -mthreads: MinGW32/GCC, Lynx/GCC
736 # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
737 # doesn't hurt to check since this sometimes defines pthreads too;
738 # also defines -D_REENTRANT)
739 # ... -mt is also the pthreads flag for HP/aCC
740 # -lpthread: GNU Linux, etc.
741 # --thread-safe: KAI C++
742 case $host_os in #(
743 *solaris*)
744 # On Solaris (at least, for some versions), libc contains stubbed
745 # (non-functional) versions of the pthreads routines, so link-based
746 # tests will erroneously succeed. (We need to link with -pthreads/-mt/
747 # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
748 # a function called by this macro, so we could check for that, but
749 # who knows whether they'll stub that too in a future libc.) So,
750 # we'll just look for -pthreads and -lpthread first:
751 boost_pthread_flags="-pthreads -lpthread -mt -pthread";; #(
752 *)
753 boost_pthread_flags="-lpthreads -Kthread -kthread -llthread -pthread \
754 -pthreads -mthreads -lpthread --thread-safe -mt";;
755 esac
756 # Generate the test file.
757 AC_LANG_CONFTEST([AC_LANG_PROGRAM([#include <pthread.h>],
758 [pthread_t th; pthread_join(th, 0);
759 pthread_attr_init(0); pthread_cleanup_push(0, 0);
760 pthread_create(0,0,0,0); pthread_cleanup_pop(0);])])
761 for boost_pthread_flag in '' $boost_pthread_flags; do
762 boost_pthread_ok=false
763 dnl Re-use the test file already generated.
764 boost_pthreads__save_LIBS=$LIBS
765 LIBS="$LIBS $boost_pthread_flag"
766 AC_LINK_IFELSE([],
767 [if grep ".*$boost_pthread_flag" conftest.err; then
768 echo "This flag seems to have triggered warnings" >&AS_MESSAGE_LOG_FD
769 else
770 boost_pthread_ok=:; boost_cv_pthread_flag=$boost_pthread_flag
771 fi])
772 LIBS=$boost_pthreads__save_LIBS
773 $boost_pthread_ok && break
774 done
775 ])
776 AC_LANG_POP([C++])dnl
777 ])# _BOOST_PTHREAD_FLAG
778
779
780 # _BOOST_gcc_test(MAJOR, MINOR)
781 # -----------------------------
782 # Internal helper for _BOOST_FIND_COMPILER_TAG.
783 m4_define([_BOOST_gcc_test],
784 ["defined __GNUC__ && __GNUC__ == $1 && __GNUC_MINOR__ == $2 && !defined __ICC @ gcc$1$2"])dnl
785
786
787 # _BOOST_FIND_COMPILER_TAG()
788 # --------------------------
789 # Internal. When Boost is installed without --layout=system, each library
790 # filename will hold a suffix that encodes the compiler used during the
791 # build. The Boost build system seems to call this a `tag'.
792 AC_DEFUN([_BOOST_FIND_COMPILER_TAG],
793 [AC_REQUIRE([AC_PROG_CXX])dnl
794 AC_CACHE_CHECK([for the toolset name used by Boost for $CXX], [boost_cv_lib_tag],
795 [AC_LANG_PUSH([C++])dnl
796 boost_cv_lib_tag=unknown
797 # The following tests are mostly inspired by boost/config/auto_link.hpp
798 # The list is sorted to most recent/common to oldest compiler (in order
799 # to increase the likelihood of finding the right compiler with the
800 # least number of compilation attempt).
801 # Beware that some tests are sensible to the order (for instance, we must
802 # look for MinGW before looking for GCC3).
803 # I used one compilation test per compiler with a #error to recognize
804 # each compiler so that it works even when cross-compiling (let me know
805 # if you know a better approach).
806 # Known missing tags (known from Boost's tools/build/v2/tools/common.jam):
807 # como, edg, kcc, bck, mp, sw, tru, xlc
808 # I'm not sure about my test for `il' (be careful: Intel's ICC pre-defines
809 # the same defines as GCC's).
810 # TODO: Move the test on GCC 4.4 up once it's released.
811 for i in \
812 _BOOST_gcc_test(4, 3) \
813 _BOOST_gcc_test(4, 2) \
814 _BOOST_gcc_test(4, 1) \
815 _BOOST_gcc_test(4, 0) \
816 "defined __GNUC__ && __GNUC__ == 3 && !defined __ICC \
817 && (defined WIN32 || defined WINNT || defined _WIN32 || defined __WIN32 \
818 || defined __WIN32__ || defined __WINNT || defined __WINNT__) @ mgw" \
819 _BOOST_gcc_test(3, 4) \
820 _BOOST_gcc_test(3, 3) \
821 "defined _MSC_VER && _MSC_VER >= 1400 @ vc80" \
822 _BOOST_gcc_test(3, 2) \
823 "defined _MSC_VER && _MSC_VER == 1310 @ vc71" \
824 _BOOST_gcc_test(3, 1) \
825 _BOOST_gcc_test(3, 0) \
826 "defined __BORLANDC__ @ bcb" \
827 "defined __ICC && (defined __unix || defined __unix__) @ il" \
828 "defined __ICL @ iw" \
829 "defined _MSC_VER && _MSC_VER == 1300 @ vc7" \
830 _BOOST_gcc_test(4, 4) \
831 _BOOST_gcc_test(2, 95) \
832 "defined __MWERKS__ && __MWERKS__ <= 0x32FF @ cw9" \
833 "defined _MSC_VER && _MSC_VER < 1300 && !defined UNDER_CE @ vc6" \
834 "defined _MSC_VER && _MSC_VER < 1300 && defined UNDER_CE @ evc4" \
835 "defined __MWERKS__ && __MWERKS__ <= 0x31FF @ cw8"
836 do
837 boost_tag_test=`expr "X$i" : 'X\([[^@]]*\) @ '`
838 boost_tag=`expr "X$i" : 'X[[^@]]* @ \(.*\)'`
839 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
840 #if $boost_tag_test
841 /* OK */
842 #else
843 # error $boost_tag_test
844 #endif
845 ]])], [boost_cv_lib_tag=$boost_tag; break], [])
846 done
847 AC_LANG_POP([C++])dnl
848 case $boost_cv_lib_tag in #(
849 # Some newer (>= 1.35?) versions of Boost seem to only use "gcc" as opposed
850 # to "gcc41" for instance.
851 *-gcc | *'-gcc ') :;; #( Don't re-add -gcc: it's already in there.
852 gcc*)
853 # We can specify multiple tags in this variable because it's used by
854 # BOOST_FIND_LIB that does a `for tag in -$boost_cv_lib_tag' ...
855 boost_cv_lib_tag="$boost_cv_lib_tag -gcc"
856 ;; #(
857 unknown)
858 AC_MSG_WARN([[could not figure out which toolset name to use for $CXX]])
859 boost_cv_lib_tag=
860 ;;
861 esac
862 ])dnl end of AC_CACHE_CHECK
863 ])# _BOOST_FIND_COMPILER_TAG
864
865
866 # _BOOST_GUESS_WHETHER_TO_USE_MT()
867 # --------------------------------
868 # Compile a small test to try to guess whether we should favor MT (Multi
869 # Thread) flavors of Boost. Sets boost_guess_use_mt accordingly.
870 AC_DEFUN([_BOOST_GUESS_WHETHER_TO_USE_MT],
871 [# Check whether we do better use `mt' even though we weren't ask to.
872 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
873 #if defined _REENTRANT || defined _MT || defined __MT__
874 /* use -mt */
875 #else
876 # error MT not needed
877 #endif
878 ]])], [boost_guess_use_mt=:], [boost_guess_use_mt=false])
879 ])
880
881 # _BOOST_AC_LINK_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
882 # -------------------------------------------------------------------
883 # Fork of _AC_LINK_IFELSE that preserves conftest.o across calls. Fragile,
884 # will break when Autoconf changes its internals. Requires that you manually
885 # rm -f conftest.$ac_objext in between to really different tests, otherwise
886 # you will try to link a conftest.o left behind by a previous test.
887 # Used to aggressively optimize BOOST_FIND_LIB (see the big comment in this
888 # macro)
889 m4_define([_BOOST_AC_LINK_IFELSE],
890 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
891 rm -f conftest$ac_exeext
892 boost_ac_ext_save=$ac_ext
893 boost_use_source=:
894 # If we already have a .o, re-use it. We change $ac_ext so that $ac_link
895 # tries to link the existing object file instead of compiling from source.
896 test -f conftest.$ac_objext && ac_ext=$ac_objext && boost_use_source=false &&
897 _AS_ECHO_LOG([re-using the existing conftest.$ac_objext])
898 AS_IF([_AC_DO_STDERR($ac_link) && {
899 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
900 test ! -s conftest.err
901 } && test -s conftest$ac_exeext && {
902 test "$cross_compiling" = yes ||
903 $as_executable_p conftest$ac_exeext
904 dnl FIXME: use AS_TEST_X instead when 2.61 is widespread enough.
905 }],
906 [$2],
907 [if $boost_use_source; then
908 _AC_MSG_LOG_CONFTEST
909 fi
910 $3])
911 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
912 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
913 dnl as it would interfere with the next link command.
914 rm -f core conftest.err conftest_ipa8_conftest.oo \
915 conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
916 ])# _BOOST_AC_LINK_IFELSE
917
918 # Local Variables:
919 # mode: autoconf
920 # End:
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