Merge topic 'boost-component-headers'

c2e8d515 FindBoost: Add checks for component-specific headers

Modules/FindBoost.cmake

@@ -310,7 +310,7 @@ macro(_Boost_ADJUST_LIB_VARS basename)
       set(Boost_${basename}_LIBRARIES ${Boost_${basename}_LIBRARY_RELEASE} )
     endif()
 
-    if(Boost_${basename}_LIBRARY)
+    if(Boost_${basename}_LIBRARY AND Boost_${basename}_HEADER)
       set(Boost_${basename}_FOUND ON)
     endif()
 
@@ -522,7 +522,9 @@ function(_Boost_COMPONENT_DEPENDENCIES component _ret)
   #
   # 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.
+  # for the previous release.  Also check if any new components have
+  # been added, and add any new components to
+  # _Boost_COMPONENT_HEADERS.
   #
   # This information was originally generated by running
   # BoostScanDeps.cmake against every boost release to date supported
@@ -753,6 +755,67 @@ function(_Boost_COMPONENT_DEPENDENCIES component _ret)
   # message(STATUS "Dependencies for Boost::${component}: ${_boost_DEPS_STRING}")
 endfunction()
 
+#
+# Get component headers.  This is the primary header (or headers) for
+# a given component, and is used to check that the headers are present
+# as well as the library itself as an extra sanity check of the build
+# environment.
+#
+# component - the component to check
+# _hdrs
+#
+function(_Boost_COMPONENT_HEADERS component _hdrs)
+  # Note: new boost components will require adding here.  The header
+  # must be present in all versions of Boost providing a library.
+  set(_Boost_ATOMIC_HEADERS              "boost/atomic.hpp")
+  set(_Boost_CHRONO_HEADERS              "boost/chrono.hpp")
+  set(_Boost_CONTAINER_HEADERS           "boost/container/container_fwd.hpp")
+  set(_Boost_CONTEXT_HEADERS             "boost/context/all.hpp")
+  set(_Boost_COROUTINE_HEADERS           "boost/coroutine/all.hpp")
+  set(_Boost_EXCEPTION_HEADERS           "boost/exception/exception.hpp")
+  set(_Boost_DATE_TIME_HEADERS           "boost/date_time/date.hpp")
+  set(_Boost_FILESYSTEM_HEADERS          "boost/filesystem/path.hpp")
+  set(_Boost_GRAPH_HEADERS               "boost/graph/adjacency_list.hpp")
+  set(_Boost_GRAPH_PARALLEL_HEADERS      "boost/graph/adjacency_list.hpp")
+  set(_Boost_IOSTREAMS_HEADERS           "boost/iostreams/stream.hpp")
+  set(_Boost_LOCALE_HEADERS              "boost/locale.hpp")
+  set(_Boost_LOG_HEADERS                 "boost/log/core.hpp")
+  set(_Boost_LOG_SETUP_HEADERS           "boost/log/detail/setup_config.hpp")
+  set(_Boost_MATH_HEADERS                "boost/math_fwd.hpp")
+  set(_Boost_MATH_C99_HEADERS            "boost/math/tr1.hpp")
+  set(_Boost_MATH_C99F_HEADERS           "boost/math/tr1.hpp")
+  set(_Boost_MATH_C99L_HEADERS           "boost/math/tr1.hpp")
+  set(_Boost_MATH_TR1_HEADERS            "boost/math/tr1.hpp")
+  set(_Boost_MATH_TR1F_HEADERS           "boost/math/tr1.hpp")
+  set(_Boost_MATH_TR1L_HEADERS           "boost/math/tr1.hpp")
+  set(_Boost_MPI_HEADERS                 "boost/mpi.hpp")
+  set(_Boost_MPI_PYTHON_HEADERS          "boost/mpi/python/config.hpp")
+  set(_Boost_PRG_EXEC_MONITOR_HEADERS    "boost/test/prg_exec_monitor.hpp")
+  set(_Boost_PROGRAM_OPTIONS_HEADERS     "boost/program_options.hpp")
+  set(_Boost_PYTHON_HEADERS              "boost/python.hpp")
+  set(_Boost_RANDOM_HEADERS              "boost/random.hpp")
+  set(_Boost_REGEX_HEADERS               "boost/regex.hpp")
+  set(_Boost_SERIALIZATION_HEADERS       "boost/serialization/serialization.hpp")
+  set(_Boost_SIGNALS_HEADERS             "boost/signals.hpp")
+  set(_Boost_SYSTEM_HEADERS              "boost/system/config.hpp")
+  set(_Boost_TEST_EXEC_MONITOR_HEADERS   "boost/test/test_exec_monitor.hpp")
+  set(_Boost_THREAD_HEADERS              "boost/thread.hpp")
+  set(_Boost_TIMER_HEADERS               "boost/timer.hpp")
+  set(_Boost_TYPE_ERASURE_HEADERS        "boost/type_erasure/config.hpp")
+  set(_Boost_UNIT_TEST_FRAMEWORK_HEADERS "boost/test/framework.hpp")
+  set(_Boost_WAVE_HEADERS                "boost/wave.hpp")
+  set(_Boost_WSERIALIZATION_HEADERS      "boost/archive/text_wiarchive.hpp")
+
+  string(TOUPPER ${component} uppercomponent)
+  set(${_hdrs} ${_Boost_${uppercomponent}_HEADERS} PARENT_SCOPE)
+
+  string(REGEX REPLACE ";" " " _boost_HDRS_STRING "${_Boost_${uppercomponent}_HEADERS}")
+  if (NOT _boost_HDRS_STRING)
+    set(_boost_HDRS_STRING "(none)")
+  endif()
+  # message(STATUS "Headers for Boost::${component}: ${_boost_HDRS_STRING}")
+endfunction()
+
 #
 # Determine if any missing dependencies require adding to the component list.
 #
@@ -840,8 +903,9 @@ else()
   # 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
+  # information in _Boost_COMPONENT_DEPENDENCIES and
-  # instructions at the top of _Boost_COMPONENT_DEPENDENCIES.
+  # _Boost_COMPONENT_HEADERS.  See the instructions at the top of
+  # _Boost_COMPONENT_DEPENDENCIES.
   set(_Boost_KNOWN_VERSIONS ${Boost_ADDITIONAL_VERSIONS}
     "1.61.0" "1.61" "1.60.0" "1.60"
     "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"
@@ -1379,6 +1443,22 @@ foreach(COMPONENT ${Boost_FIND_COMPONENTS})
     endif()
   endif()
 
+  #
+  # Find headers
+  #
+  _Boost_COMPONENT_HEADERS("${COMPONENT}" Boost_${UPPERCOMPONENT}_HEADER_NAME)
+  # Look for a standard boost header file.
+  if(Boost_${UPPERCOMPONENT}_HEADER_NAME)
+    if(EXISTS "${Boost_INCLUDE_DIR}/${Boost_${UPPERCOMPONENT}_HEADER_NAME}")
+      set(Boost_${UPPERCOMPONENT}_HEADER ON)
+    else()
+      set(Boost_${UPPERCOMPONENT}_HEADER OFF)
+    endif()
+  else()
+    set(Boost_${UPPERCOMPONENT}_HEADER ON)
+    message(WARNING "No header defined for ${COMPONENT}; skipping header check")
+  endif()
+
   #
   # Find RELEASE libraries
   #