FindBoost: Embed component dependency table

The function _Boost_COMPONENT_DEPENDENCIES is used to query the
library dependencies for a given component for a given version of
Boost.  This covers Boost releases from 1.33 to 1.59, using the
information generated by Utilities/Scripts/BoostScanDeps.cmake.

Modules/FindBoost.cmake

@@ -471,6 +471,223 @@ function(_Boost_GUESS_COMPILER_PREFIX _ret)
   set(${_ret} ${_boost_COMPILER} PARENT_SCOPE)
 endfunction()
 
+#
+# Get component dependencies.  Requires the dependencies to have been
+# defined for the Boost release version.
+#
+# component - the component to check
+# _ret - list of library dependencies
+#
+function(_Boost_COMPONENT_DEPENDENCIES component _ret)
+  # Note: to add a new Boost release, run
+  #
+  #   % cmake -DBOOST_DIR=/path/to/boost/source -P Utilities/Scripts/BoostScanDeps.cmake
+  #
+  # The output may be added in a new block below.  If it's the same as
+  # the previous release, simply update the version range of the block
+  # for the previous release.
+  #
+  # This information was originally generated by running
+  # BoostScanDeps.cmake against every boost release to date supported
+  # by FindBoost:
+  #
+  #   % for version in /path/to/boost/sources/*
+  #     do
+  #       cmake -DBOOST_DIR=$version -P Utilities/Scripts/BoostScanDeps.cmake
+  #     done
+  #
+  # The output was then updated by search and replace with these regexes:
+  #
+  # - Strip message(STATUS) prefix dashes
+  #   s;^-- ;;
+  # - Indent
+  #   s;^set(;    set(;;
+  # - Add conditionals
+  #   s;Scanning /path/to/boost/sources/boost_\(.*\)_\(.*\)_\(.*);  elseif(NOT Boost_VERSION VERSION_LESS \10\20\3 AND Boost_VERSION VERSION_LESS xxxx);
+  #
+  # This results in the logic seen below, but will require the xxxx
+  # replacing with the following Boost release version (or the next
+  # minor version to be released, e.g. 1.59 was the latest at the time
+  # of writing, making 1.60 the next, so 106000 is the needed version
+  # number).  Identical consecutive releases were then merged together
+  # by updating the end range of the first block and removing the
+  # following redundant blocks.
+  #
+  # Running the script against all historical releases should be
+  # required only if the BoostScanDeps.cmake script logic is changed.
+  # The addition of a new release should only require it to be run
+  # against the new release.
+  set(_Boost_IMPORTED_TARGETS TRUE)
+  if(NOT Boost_VERSION VERSION_LESS 103300 AND Boost_VERSION VERSION_LESS 103500)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex thread)
+    set(_Boost_REGEX_DEPENDENCIES thread)
+    set(_Boost_WAVE_DEPENDENCIES filesystem thread)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 103500 AND Boost_VERSION VERSION_LESS 103600)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system thread)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 103600 AND Boost_VERSION VERSION_LESS 103800)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system thread)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 103800 AND Boost_VERSION VERSION_LESS 104300)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES date_time)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system thread date_time)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 104300 AND Boost_VERSION VERSION_LESS 104400)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l random)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES date_time)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system thread date_time)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 104400 AND Boost_VERSION VERSION_LESS 104500)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l random serialization)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES date_time)
+    set(_Boost_WAVE_DEPENDENCIES serialization filesystem system thread date_time)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 104500 AND Boost_VERSION VERSION_LESS 104700)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l random)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES date_time)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system serialization thread date_time)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 104700 AND Boost_VERSION VERSION_LESS 104800)
+    set(_Boost_CHRONO_DEPENDENCIES system)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l random)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES date_time)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system serialization thread date_time)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 104800 AND Boost_VERSION VERSION_LESS 105000)
+    set(_Boost_CHRONO_DEPENDENCIES system)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l random)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES date_time)
+    set(_Boost_TIMER_DEPENDENCIES chrono system)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system serialization thread date_time)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 105000 AND Boost_VERSION VERSION_LESS 105300)
+    set(_Boost_CHRONO_DEPENDENCIES system)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l regex random)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES chrono system date_time)
+    set(_Boost_TIMER_DEPENDENCIES chrono system)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system serialization thread chrono date_time)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 105300 AND Boost_VERSION VERSION_LESS 105400)
+    set(_Boost_ATOMIC_DEPENDENCIES thread chrono system date_time)
+    set(_Boost_CHRONO_DEPENDENCIES system)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l regex random)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES chrono system date_time atomic)
+    set(_Boost_TIMER_DEPENDENCIES chrono system)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system serialization thread chrono date_time)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 105400 AND Boost_VERSION VERSION_LESS 105500)
+    set(_Boost_ATOMIC_DEPENDENCIES thread chrono system date_time)
+    set(_Boost_CHRONO_DEPENDENCIES system)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_LOG_DEPENDENCIES log_setup date_time system filesystem thread regex chrono)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l regex random)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES chrono system date_time atomic)
+    set(_Boost_TIMER_DEPENDENCIES chrono system)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system serialization thread chrono date_time atomic)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 105500 AND Boost_VERSION VERSION_LESS 105600)
+    set(_Boost_CHRONO_DEPENDENCIES system)
+    set(_Boost_COROUTINE_DEPENDENCIES context system)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_LOG_DEPENDENCIES log_setup date_time system filesystem thread regex chrono)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l regex random)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_THREAD_DEPENDENCIES chrono system date_time atomic)
+    set(_Boost_TIMER_DEPENDENCIES chrono system)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system serialization thread chrono date_time atomic)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 105600 AND Boost_VERSION VERSION_LESS 105900)
+    set(_Boost_CHRONO_DEPENDENCIES system)
+    set(_Boost_COROUTINE_DEPENDENCIES context system)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_LOG_DEPENDENCIES log_setup date_time system filesystem thread regex chrono)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l atomic)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_RANDOM_DEPENDENCIES system)
+    set(_Boost_THREAD_DEPENDENCIES chrono system date_time atomic)
+    set(_Boost_TIMER_DEPENDENCIES chrono system)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system serialization thread chrono date_time atomic)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  elseif(NOT Boost_VERSION VERSION_LESS 105900 AND Boost_VERSION VERSION_LESS 106000)
+    set(_Boost_CHRONO_DEPENDENCIES system)
+    set(_Boost_COROUTINE_DEPENDENCIES context system)
+    set(_Boost_FILESYSTEM_DEPENDENCIES system)
+    set(_Boost_IOSTREAMS_DEPENDENCIES regex)
+    set(_Boost_LOG_DEPENDENCIES log_setup date_time system filesystem thread regex chrono atomic)
+    set(_Boost_MATH_DEPENDENCIES math_c99 math_c99f math_c99l math_tr1 math_tr1f math_tr1l atomic)
+    set(_Boost_MPI_DEPENDENCIES serialization)
+    set(_Boost_MPI_PYTHON_DEPENDENCIES python mpi serialization)
+    set(_Boost_RANDOM_DEPENDENCIES system)
+    set(_Boost_THREAD_DEPENDENCIES chrono system date_time atomic)
+    set(_Boost_TIMER_DEPENDENCIES chrono system)
+    set(_Boost_WAVE_DEPENDENCIES filesystem system serialization thread chrono date_time atomic)
+    set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
+  else()
+    message(WARNING "Imported targets not available for Boost version ${Boost_VERSION}")
+    set(_Boost_IMPORTED_TARGETS FALSE)
+  endif()
+
+  string(TOUPPER ${component} uppercomponent)
+  set(${_ret} ${_Boost_${uppercomponent}_DEPENDENCIES} PARENT_SCOPE)
+  set(_Boost_IMPORTED_TARGETS ${_Boost_IMPORTED_TARGETS} PARENT_SCOPE)
+
+  string(REGEX REPLACE ";" " " _boost_DEPS_STRING "${_Boost_${uppercomponent}_DEPENDENCIES}")
+  if (NOT _boost_DEPS_STRING)
+    set(_boost_DEPS_STRING "(none)")
+  endif()
+  # message(STATUS "Dependencies for Boost::${component}: ${_boost_DEPS_STRING}")
+endfunction()
+
 #
 # End functions/macros
 #
@@ -511,6 +728,10 @@ if(Boost_FIND_VERSION_EXACT)
 else()
   # The user has not requested an exact version.  Among known
   # versions, find those that are acceptable to the user request.
+  #
+  # Note: When adding a new Boost release, also update the dependency
+  # information in _Boost_COMPONENT_DEPENDENCIES.  See the
+  # instructions at the top of _Boost_COMPONENT_DEPENDENCIES.
   set(_Boost_KNOWN_VERSIONS ${Boost_ADDITIONAL_VERSIONS}
 
     "1.59.0" "1.59" "1.58.0" "1.58" "1.57.0" "1.57" "1.56.0" "1.56" "1.55.0" "1.55"