Imported Upstream version 3.19.0upstream/3.19.0

1 files changed, 23 insertions, 7 deletions

diff --git a/Modules/FindBoost.cmake b/Modules/FindBoost.cmake
index 13981d3b8..00e4ff1d2 100644
--- a/Modules/FindBoost.cmake
+++ b/Modules/FindBoost.cmake
@@ -305,7 +305,7 @@ function(_boost_get_canonical_target_name component target_var)
 endfunction()
 
 macro(_boost_set_in_parent_scope name value)
-  # Set a variable in parent scope and make it visibile in current scope
+  # Set a variable in parent scope and make it visible in current scope
   set(${name} "${value}" PARENT_SCOPE)
   set(${name} "${value}")
 endmacro()
@@ -442,10 +442,27 @@ if (NOT Boost_NO_BOOST_CMAKE)
     endif()
   endif()
 
+  set(_boost_FIND_PACKAGE_ARGS "")
+  if(Boost_NO_SYSTEM_PATHS)
+    list(APPEND _boost_FIND_PACKAGE_ARGS NO_CMAKE_SYSTEM_PATH NO_SYSTEM_ENVIRONMENT_PATH)
+  endif()
+
   # Do the same find_package call but look specifically for the CMake version.
   # Note that args are passed in the Boost_FIND_xxxxx variables, so there is no
   # need to delegate them to this find_package call.
-  find_package(Boost QUIET NO_MODULE)
+  if(BOOST_ROOT AND NOT Boost_ROOT)
+    # Honor BOOST_ROOT by setting Boost_ROOT with CMP0074 NEW behavior.
+    cmake_policy(PUSH)
+    cmake_policy(SET CMP0074 NEW)
+    set(Boost_ROOT "${BOOST_ROOT}")
+    set(_Boost_ROOT_FOR_CONFIG 1)
+  endif()
+  find_package(Boost QUIET NO_MODULE ${_boost_FIND_PACKAGE_ARGS})
+  if(_Boost_ROOT_FOR_CONFIG)
+    unset(_Boost_ROOT_FOR_CONFIG)
+    unset(Boost_ROOT)
+    cmake_policy(POP)
+  endif()
   if (DEFINED Boost_DIR)
     mark_as_advanced(Boost_DIR)
   endif ()
@@ -1183,7 +1200,7 @@ function(_Boost_COMPONENT_DEPENDENCIES component _ret)
       set(_Boost_TIMER_DEPENDENCIES chrono)
       set(_Boost_WAVE_DEPENDENCIES filesystem serialization thread chrono date_time atomic)
       set(_Boost_WSERIALIZATION_DEPENDENCIES serialization)
-      if(Boost_VERSION_STRING VERSION_GREATER_EQUAL 1.74.0)
+      if(Boost_VERSION_STRING VERSION_GREATER_EQUAL 1.75.0)
         message(WARNING "New Boost version may have incorrect or missing dependencies and imported targets")
       endif()
     endif()
@@ -1270,10 +1287,8 @@ function(_Boost_COMPONENT_HEADERS component _hdrs)
   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")
-  if(WIN32)
-    set(_Boost_BZIP2_HEADERS             "boost/iostreams/filter/bzip2.hpp")
-    set(_Boost_ZLIB_HEADERS              "boost/iostreams/filter/zlib.hpp")
-  endif()
+  set(_Boost_BZIP2_HEADERS               "boost/iostreams/filter/bzip2.hpp")
+  set(_Boost_ZLIB_HEADERS                "boost/iostreams/filter/zlib.hpp")
 
   string(TOUPPER ${component} uppercomponent)
   set(${_hdrs} ${_Boost_${uppercomponent}_HEADERS} PARENT_SCOPE)
@@ -1457,6 +1472,7 @@ else()
   # _Boost_COMPONENT_HEADERS.  See the instructions at the top of
   # _Boost_COMPONENT_DEPENDENCIES.
   set(_Boost_KNOWN_VERSIONS ${Boost_ADDITIONAL_VERSIONS}
+    "1.74.0" "1.74"
     "1.73.0" "1.73" "1.72.0" "1.72" "1.71.0" "1.71" "1.70.0" "1.70" "1.69.0" "1.69"
     "1.68.0" "1.68" "1.67.0" "1.67" "1.66.0" "1.66" "1.65.1" "1.65.0" "1.65"
     "1.64.0" "1.64" "1.63.0" "1.63" "1.62.0" "1.62" "1.61.0" "1.61" "1.60.0" "1.60"