Dogcows Code - chaz/yoink/blob - 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   [$4]);dnl
  63 rm -f conftest*
  64 ])# AC_EGREP_CPP
  65
  66
  67
  68 # BOOST_REQUIRE([VERSION])
  69 # ------------------------
  70 # Look for Boost.  If version is given, it must either be a literal of the form
  71 # "X.Y.Z" where X, Y and Z are integers (the ".Z" part being optional) or a
  72 # variable "$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: