Merge topic 'vs-generator-platform'

09c8ad99 enable_language: Initialize system-specific generator info only once
09ab207c Tests: Add generator platform support
6944997b ExternalProject: Propagate the generator platform
8d332091 CTest: Add options to set generator platform
b97736a2 VS: Implement CMAKE_GENERATOR_PLATFORM for VS >= 8
0f1f1271 CMake: Add CMAKE_GENERATOR_PLATFORM option
4f7d0c42 Help: Document CMAKE_VS_PLATFORM_NAME variable
68d4280a VS: Refactor internal default platform name selection
ad2a4776 cmGlobalVisualStudio10Generator: Re-order some methods
03b7b6cd cmGlobalGenerator: Call SetGeneratorToolset even for empty toolset

51 files changed, 114 insertions, 3 deletions

diff --git a/Tests/CMakeBuildTest.cmake.in b/Tests/CMakeBuildTest.cmake.in
index aaefe43..f23f820 100644
--- a/Tests/CMakeBuildTest.cmake.in
+++ b/Tests/CMakeBuildTest.cmake.in
@@ -12,6 +12,7 @@ message("running: ${CMAKE_COMMAND}")
 execute_process(COMMAND "${CMAKE_COMMAND}"
   "@CMAKE_BUILD_TEST_SOURCE_DIR@"
   "-G@CMAKE_GENERATOR@"
+  "-DCMAKE_GENERATOR_PLATFORM=@CMAKE_GENERATOR_PLATFORM@"
   -T "@CMAKE_GENERATOR_TOOLSET@"
   WORKING_DIRECTORY "@CMAKE_BUILD_TEST_BINARY_DIR@"
   RESULT_VARIABLE RESULT)
diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 7242a00..0b4aef7 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -86,6 +86,11 @@ if(BUILD_TESTING)
   set(build_generator_args
     --build-generator ${CMAKE_GENERATOR}
     )
+  if(CMAKE_GENERATOR_PLATFORM)
+    list(APPEND build_generator_args
+      --build-generator-platform ${CMAKE_GENERATOR_PLATFORM}
+      )
+  endif()
   if(CMAKE_GENERATOR_TOOLSET)
     list(APPEND build_generator_args
       --build-generator-toolset ${CMAKE_GENERATOR_TOOLSET}
@@ -508,6 +513,7 @@ if(BUILD_TESTING)
          "${CMake_BINARY_DIR}/Tests/Simple_EclipseGenerator"
          --build-two-config
          --build-generator "Eclipse CDT4 - Unix Makefiles"
+         --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
          --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
          --build-project Simple
          --build-options ${build_options}
@@ -523,6 +529,7 @@ if(BUILD_TESTING)
          "${CMake_BINARY_DIR}/Tests/Simple_CodeBlocksGenerator"
          --build-two-config
          --build-generator "CodeBlocks - Unix Makefiles"
+         --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
          --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
          --build-project Simple
          --build-options ${build_options}
@@ -537,6 +544,7 @@ if(BUILD_TESTING)
          "${CMake_BINARY_DIR}/Tests/Simple_KDevelop3Generator"
          --build-two-config
          --build-generator "KDevelop3 - Unix Makefiles"
+         --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
          --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
          --build-project Simple
          --build-options ${build_options}
@@ -577,6 +585,7 @@ if(BUILD_TESTING)
       "${CMake_SOURCE_DIR}/Tests/SubProject/foo"
       "${CMake_BINARY_DIR}/Tests/SubProject/foo"
       --build-generator ${CMAKE_GENERATOR}
+      --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
       --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
       ${SubProject-Stage2_BUILD_MAKEPROGRAM}
       --build-nocmake
@@ -1288,6 +1297,7 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
     -DExternalProjectUpdate_SOURCE_DIR:PATH=${CMake_SOURCE_DIR}/Tests/ExternalProjectUpdate
     -DExternalProjectUpdate_BINARY_DIR:PATH=${CMake_BINARY_DIR}/Tests/ExternalProjectUpdate
     -DCMAKE_GENERATOR=${CMAKE_GENERATOR}
+    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
     -DCMAKE_GENERATOR_TOOLSET=${CMAKE_GENERATOR_TOOLSET}
     -DCMAKE_CTEST_COMMAND=${CMAKE_CTEST_COMMAND}
     -P ${CMake_SOURCE_DIR}/Tests/ExternalProjectUpdate/ExternalProjectUpdateTest.cmake
@@ -1737,6 +1747,7 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
           --build-two-config
           --build-generator ${CMAKE_GENERATOR}
           --build-makeprogram ${CMake_TEST_DEVENV}
+          --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
           --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
           --build-project VSExcludeFromDefaultBuild
           --test-command ${CMAKE_COMMAND}
@@ -1761,6 +1772,7 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
         "${CMake_BINARY_DIR}/Tests/VSProjectInSubdir"
         --build-two-config
         --build-generator ${CMAKE_GENERATOR}
+        --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
         --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
         --build-project VSProjectInSubdir
         --build-target test)
@@ -1975,6 +1987,9 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
 
   # A test for ctest_build() with targets in subdirectories
   set(ctest_configure_options)
+  if(CMAKE_GENERATOR_PLATFORM)
+    list(APPEND ctest_configure_options -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM})
+  endif()
   if(CMAKE_GENERATOR_TOOLSET)
     list(APPEND ctest_configure_options -T ${CMAKE_GENERATOR_TOOLSET})
   endif()
diff --git a/Tests/CMakeOnly/Test.cmake.in b/Tests/CMakeOnly/Test.cmake.in
index 285643a..63c0d9e 100644
--- a/Tests/CMakeOnly/Test.cmake.in
+++ b/Tests/CMakeOnly/Test.cmake.in
@@ -9,6 +9,7 @@ file(MAKE_DIRECTORY "${binary_dir}")
 execute_process(
   COMMAND  ${CMAKE_COMMAND} ${CMAKE_ARGS}
   "${source_dir}" -G "@CMAKE_GENERATOR@"
+  -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
   -T "@CMAKE_GENERATOR_TOOLSET@"
   WORKING_DIRECTORY "${binary_dir}"
   RESULT_VARIABLE result
diff --git a/Tests/CTestConfig/dashboard.cmake.in b/Tests/CTestConfig/dashboard.cmake.in
index 608501c..cb01744 100644
--- a/Tests/CTestConfig/dashboard.cmake.in
+++ b/Tests/CTestConfig/dashboard.cmake.in
@@ -19,6 +19,7 @@ message("cmake initial configure")
 execute_process(COMMAND ${CMAKE_COMMAND}
    ${arg}
    -G "@CMAKE_GENERATOR@"
+   -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
    -T "@CMAKE_GENERATOR_TOOLSET@"
    ${CTEST_SOURCE_DIRECTORY}
   WORKING_DIRECTORY ${CTEST_BINARY_DIRECTORY}
diff --git a/Tests/CTestConfig/script.cmake.in b/Tests/CTestConfig/script.cmake.in
index 166de3b..b6ccedb 100644
--- a/Tests/CTestConfig/script.cmake.in
+++ b/Tests/CTestConfig/script.cmake.in
@@ -1,4 +1,5 @@
 set(CTEST_CMAKE_GENERATOR "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_PROJECT_NAME "CTestConfig")
 set(CTEST_SOURCE_DIRECTORY "@CMake_SOURCE_DIR@/Tests/CTestConfig")
diff --git a/Tests/CTestTest/test.cmake.in b/Tests/CTestTest/test.cmake.in
index ab39b88..bb6346b 100644
--- a/Tests/CTestTest/test.cmake.in
+++ b/Tests/CTestTest/test.cmake.in
@@ -41,6 +41,7 @@ set (CTEST_INITIAL_CACHE "
 SITE:STRING=@SITE@
 BUILDNAME:STRING=SmallAndFast-@BUILDNAME@
 CMAKE_GENERATOR:INTERNAL=@CMAKE_GENERATOR@
+CMAKE_GENERATOR_PLATFORM:INTERNAL=@CMAKE_GENERATOR_PLATFORM@
 CMAKE_GENERATOR_TOOLSET:INTERNAL=@CMAKE_GENERATOR_TOOLSET@
 CMAKE_CXX_FLAGS:STRING=@CMAKE_CXX_FLAGS@
 CMAKE_C_FLAGS:STRING=@CMAKE_C_FLAGS@
diff --git a/Tests/CTestTest2/test.cmake.in b/Tests/CTestTest2/test.cmake.in
index c5a7b45..852bb6b 100644
--- a/Tests/CTestTest2/test.cmake.in
+++ b/Tests/CTestTest2/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Source/kwsys")
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTest2/kwsysBin")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_MEMORYCHECK_COMMAND           "@MEMORYCHECK_COMMAND@")
diff --git a/Tests/CTestTestBadExe/test.cmake.in b/Tests/CTestTestBadExe/test.cmake.in
index 601aab4..43a8572 100644
--- a/Tests/CTestTestBadExe/test.cmake.in
+++ b/Tests/CTestTestBadExe/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestBadEx
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestBadExe")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestBadGenerator/test.cmake.in b/Tests/CTestTestBadGenerator/test.cmake.in
index fe4fba8..ae6d0b5 100644
--- a/Tests/CTestTestBadGenerator/test.cmake.in
+++ b/Tests/CTestTestBadGenerator/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestBadGe
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestBadGenerator")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "Bad Generator")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestChecksum/test.cmake.in b/Tests/CTestTestChecksum/test.cmake.in
index 8413443..32d62bb 100644
--- a/Tests/CTestTestChecksum/test.cmake.in
+++ b/Tests/CTestTestChecksum/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestParal
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestParallel")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestConfigFileInBuildDir/test1.cmake.in b/Tests/CTestTestConfigFileInBuildDir/test1.cmake.in
index d3510bb..6d29af7 100644
--- a/Tests/CTestTestConfigFileInBuildDir/test1.cmake.in
+++ b/Tests/CTestTestConfigFileInBuildDir/test1.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestConfi
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestConfigFileInBuildDir1")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestConfigFileInBuildDir/test2.cmake.in b/Tests/CTestTestConfigFileInBuildDir/test2.cmake.in
index 99b002c..fb298d4 100644
--- a/Tests/CTestTestConfigFileInBuildDir/test2.cmake.in
+++ b/Tests/CTestTestConfigFileInBuildDir/test2.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestConfi
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestConfigFileInBuildDir2")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestCostSerial/test.cmake.in b/Tests/CTestTestCostSerial/test.cmake.in
index ce8720c..9b32a46 100644
--- a/Tests/CTestTestCostSerial/test.cmake.in
+++ b/Tests/CTestTestCostSerial/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestCostS
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestCostSerial")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestCrash/test.cmake.in b/Tests/CTestTestCrash/test.cmake.in
index 5906d12..3641cb0 100644
--- a/Tests/CTestTestCrash/test.cmake.in
+++ b/Tests/CTestTestCrash/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestCrash
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestCrash")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestCycle/test.cmake.in b/Tests/CTestTestCycle/test.cmake.in
index 478badb..4a63dd6 100644
--- a/Tests/CTestTestCycle/test.cmake.in
+++ b/Tests/CTestTestCycle/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestCycle
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestCycle")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestDepends/test.cmake.in b/Tests/CTestTestDepends/test.cmake.in
index a7de8cc..74fddb3 100644
--- a/Tests/CTestTestDepends/test.cmake.in
+++ b/Tests/CTestTestDepends/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestDepen
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestDepends")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestFailedSubmits/test.cmake.in b/Tests/CTestTestFailedSubmits/test.cmake.in
index 36a09cf..5ff836f 100644
--- a/Tests/CTestTestFailedSubmits/test.cmake.in
+++ b/Tests/CTestTestFailedSubmits/test.cmake.in
@@ -21,6 +21,7 @@ set(CTEST_SOURCE_DIRECTORY              "@source@")
 set(CTEST_BINARY_DIRECTORY              "@build@")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestFailure/testNoBuild.cmake.in b/Tests/CTestTestFailure/testNoBuild.cmake.in
index 143daf8..86333af 100644
--- a/Tests/CTestTestFailure/testNoBuild.cmake.in
+++ b/Tests/CTestTestFailure/testNoBuild.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestFailu
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestFailure")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestFailure/testNoExe.cmake.in b/Tests/CTestTestFailure/testNoExe.cmake.in
index 11a1930..8875cee 100644
--- a/Tests/CTestTestFailure/testNoExe.cmake.in
+++ b/Tests/CTestTestFailure/testNoExe.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestFailu
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestFailure")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestFdSetSize/test.cmake.in b/Tests/CTestTestFdSetSize/test.cmake.in
index fbe0e82..bfe4459 100644
--- a/Tests/CTestTestFdSetSize/test.cmake.in
+++ b/Tests/CTestTestFdSetSize/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestFdSet
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestFdSetSize")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestLaunchers/test.cmake.in b/Tests/CTestTestLaunchers/test.cmake.in
index 43a6533..03a118a 100644
--- a/Tests/CTestTestLaunchers/test.cmake.in
+++ b/Tests/CTestTestLaunchers/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_BUILD_NAME                    "Launchers-@BUILDNAME@-CTestTestLauncher
 set(CTEST_SOURCE_DIRECTORY              "${CTEST_DASHBOARD_SOURCE}/launcher_test_project")
 set(CTEST_BINARY_DIRECTORY              "${CTEST_DASHBOARD_ROOT}/launcher_test_project-bin")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_NOTES_FILES                   "${CTEST_SCRIPT_DIRECTORY}/${CTEST_SCRIPT_NAME}")
diff --git a/Tests/CTestTestMemcheck/test.cmake.in b/Tests/CTestTestMemcheck/test.cmake.in
index 87195c5..f2ffd06 100644
--- a/Tests/CTestTestMemcheck/test.cmake.in
+++ b/Tests/CTestTestMemcheck/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMAKE_CURRENT_BINARY_DIR@/@SUBTEST_NAM
 set(CTEST_BINARY_DIRECTORY              "@CMAKE_CURRENT_BINARY_DIR@/@SUBTEST_NAME@")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestParallel/test.cmake.in b/Tests/CTestTestParallel/test.cmake.in
index 48631ca..045a4ca 100644
--- a/Tests/CTestTestParallel/test.cmake.in
+++ b/Tests/CTestTestParallel/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestParal
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestParallel")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestResourceLock/test.cmake.in b/Tests/CTestTestResourceLock/test.cmake.in
index 6ec6dfe..67dde18 100644
--- a/Tests/CTestTestResourceLock/test.cmake.in
+++ b/Tests/CTestTestResourceLock/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestResou
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestResourceLock")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestScheduler/test.cmake.in b/Tests/CTestTestScheduler/test.cmake.in
index 06ba33e..f8c8ab7 100644
--- a/Tests/CTestTestScheduler/test.cmake.in
+++ b/Tests/CTestTestScheduler/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestSched
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestScheduler")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestSkipReturnCode/test.cmake.in b/Tests/CTestTestSkipReturnCode/test.cmake.in
index d3c44f5..112b0cd 100644
--- a/Tests/CTestTestSkipReturnCode/test.cmake.in
+++ b/Tests/CTestTestSkipReturnCode/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestSkipR
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestSkipReturnCode")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestStopTime/test.cmake.in b/Tests/CTestTestStopTime/test.cmake.in
index 8adf941..d3a9a4a 100644
--- a/Tests/CTestTestStopTime/test.cmake.in
+++ b/Tests/CTestTestStopTime/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestStopT
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestStopTime")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestSubdir/test.cmake.in b/Tests/CTestTestSubdir/test.cmake.in
index 5a6caf1..8b3957b 100644
--- a/Tests/CTestTestSubdir/test.cmake.in
+++ b/Tests/CTestTestSubdir/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestSubdi
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestSubdir")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestTimeout/test.cmake.in b/Tests/CTestTestTimeout/test.cmake.in
index af53383..4b5157e 100644
--- a/Tests/CTestTestTimeout/test.cmake.in
+++ b/Tests/CTestTestTimeout/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestTimeo
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestTimeout")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/CTestTestUpload/test.cmake.in b/Tests/CTestTestUpload/test.cmake.in
index bb6ba25..701439d 100644
--- a/Tests/CTestTestUpload/test.cmake.in
+++ b/Tests/CTestTestUpload/test.cmake.in
@@ -8,6 +8,7 @@ set(CTEST_BUILD_NAME                    "CTestTest-@BUILDNAME@-Upload")
 set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestUpload")
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestUpload")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 
diff --git a/Tests/CTestTestZeroTimeout/test.cmake.in b/Tests/CTestTestZeroTimeout/test.cmake.in
index beb6d90..b829fef 100644
--- a/Tests/CTestTestZeroTimeout/test.cmake.in
+++ b/Tests/CTestTestZeroTimeout/test.cmake.in
@@ -9,6 +9,7 @@ set(CTEST_SOURCE_DIRECTORY              "@CMake_SOURCE_DIR@/Tests/CTestTestZeroT
 set(CTEST_BINARY_DIRECTORY              "@CMake_BINARY_DIR@/Tests/CTestTestZeroTimeout")
 set(CTEST_CVS_COMMAND                   "@CVSCOMMAND@")
 set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_PLATFORM      "@CMAKE_GENERATOR_PLATFORM@")
 set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
 set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
 set(CTEST_COVERAGE_COMMAND              "@COVERAGE_COMMAND@")
diff --git a/Tests/ExportImport/CMakeLists.txt b/Tests/ExportImport/CMakeLists.txt
index a6f8921..eaad3d4 100644
--- a/Tests/ExportImport/CMakeLists.txt
+++ b/Tests/ExportImport/CMakeLists.txt
@@ -44,6 +44,7 @@ add_custom_command(
     --build-project Export
     --build-target install
     --build-generator ${CMAKE_GENERATOR}
+    --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
     --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
     --build-options -C${ExportImport_BINARY_DIR}/InitialCache.cmake
   VERBATIM
@@ -65,6 +66,7 @@ add_custom_command(
    --build-noclean
    --build-project Import
    --build-generator ${CMAKE_GENERATOR}
+   --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
    --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
    --build-options -C${ExportImport_BINARY_DIR}/InitialCache.cmake
   VERBATIM
diff --git a/Tests/ExternalProjectUpdate/ExternalProjectUpdateTest.cmake b/Tests/ExternalProjectUpdate/ExternalProjectUpdateTest.cmake
index ea59a8e..51e768e 100644
--- a/Tests/ExternalProjectUpdate/ExternalProjectUpdateTest.cmake
+++ b/Tests/ExternalProjectUpdate/ExternalProjectUpdateTest.cmake
@@ -13,6 +13,7 @@ macro(check_a_tag desired_tag resulting_sha fetch_expected)
   # Configure
   execute_process(COMMAND ${CMAKE_COMMAND}
     -G ${CMAKE_GENERATOR} -T "${CMAKE_GENERATOR_TOOLSET}"
+    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
     -DTEST_GIT_TAG:STRING=${desired_tag}
     ${ExternalProjectUpdate_SOURCE_DIR}
     WORKING_DIRECTORY ${ExternalProjectUpdate_BINARY_DIR}
diff --git a/Tests/Fortran/CMakeLists.txt b/Tests/Fortran/CMakeLists.txt
index ef3b317..1982a60 100644
--- a/Tests/Fortran/CMakeLists.txt
+++ b/Tests/Fortran/CMakeLists.txt
@@ -201,6 +201,7 @@ if(TEST_MODULE_DEPENDS)
          --build-two-config
          --build-project ExtFort
          --build-generator ${CMAKE_GENERATOR}
+         --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
          --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
          --build-options -DCMAKE_Fortran_COMPILER:STRING=${CMAKE_Fortran_COMPILER}
                          -DCMAKE_Fortran_FLAGS:STRING=${CMAKE_Fortran_FLAGS}
diff --git a/Tests/FortranC/Flags.cmake.in b/Tests/FortranC/Flags.cmake.in
index 28c38e4..9504fec 100644
--- a/Tests/FortranC/Flags.cmake.in
+++ b/Tests/FortranC/Flags.cmake.in
@@ -15,6 +15,7 @@ set(COMMAND)
 execute_process(
   WORKING_DIRECTORY "${bld}"
   COMMAND ${CMAKE_COMMAND} "${src}" -G "@CMAKE_GENERATOR@"
+                           "-DCMAKE_GENERATOR_PLATFORM=@CMAKE_GENERATOR_PLATFORM@"
                            -T "@CMAKE_GENERATOR_TOOLSET@"
                            "-DFortranC_TEST_FLAGS=1"
                            "-DCMAKE_C_COMPILER=${bld}/cc.sh"
diff --git a/Tests/MacRuntimePath/CMakeLists.txt b/Tests/MacRuntimePath/CMakeLists.txt
index eeb3653..3e9ab8a 100644
--- a/Tests/MacRuntimePath/CMakeLists.txt
+++ b/Tests/MacRuntimePath/CMakeLists.txt
@@ -39,6 +39,7 @@ add_custom_command(
     --build-project MacRuntimePath_A
     --build-target install
     --build-generator ${CMAKE_GENERATOR}
+    --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
     --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
     --build-options -C${MacRuntimePath_BINARY_DIR}/InitialCache.cmake
   VERBATIM
@@ -60,6 +61,7 @@ add_custom_command(
    --build-noclean
    --build-project MacRuntimePath_B
    --build-generator ${CMAKE_GENERATOR}
+   --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
    --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
    --build-options -C${MacRuntimePath_BINARY_DIR}/InitialCache.cmake
   VERBATIM
diff --git a/Tests/RunCMake/CMakeLists.txt b/Tests/RunCMake/CMakeLists.txt
index 3cd9947..6735fe2 100644
--- a/Tests/RunCMake/CMakeLists.txt
+++ b/Tests/RunCMake/CMakeLists.txt
@@ -4,6 +4,7 @@ macro(add_RunCMake_test test)
   add_test(RunCMake.${test} ${CMAKE_CMAKE_COMMAND}
     -DCMAKE_MODULE_PATH=${CMAKE_CURRENT_SOURCE_DIR}
     -DRunCMake_GENERATOR=${CMAKE_GENERATOR}
+    -DRunCMake_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
     -DRunCMake_GENERATOR_TOOLSET=${CMAKE_GENERATOR_TOOLSET}
     -DRunCMake_SOURCE_DIR=${CMAKE_CURRENT_SOURCE_DIR}/${test}
     -DRunCMake_BINARY_DIR=${CMAKE_CURRENT_BINARY_DIR}/${test}
@@ -58,6 +59,7 @@ add_RunCMake_test(ExternalData)
 add_RunCMake_test(FeatureSummary)
 add_RunCMake_test(FPHSA)
 add_RunCMake_test(GeneratorExpression)
+add_RunCMake_test(GeneratorPlatform)
 add_RunCMake_test(GeneratorToolset)
 add_RunCMake_test(TargetPropertyGeneratorExpressions)
 add_RunCMake_test(Languages)
diff --git a/Tests/RunCMake/GeneratorPlatform/BadPlatform-result.txt b/Tests/RunCMake/GeneratorPlatform/BadPlatform-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/BadPlatform-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorPlatform/BadPlatform-stderr.txt b/Tests/RunCMake/GeneratorPlatform/BadPlatform-stderr.txt
new file mode 100644
index 0000000..e315714
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/BadPlatform-stderr.txt
@@ -0,0 +1,10 @@
+CMake Error at CMakeLists.txt:[0-9]+ \(project\):
+  Generator
+
+    .*
+
+  does not support platform specification, but platform
+
+    Bad Platform
+
+  was specified.$
diff --git a/Tests/RunCMake/GeneratorPlatform/BadPlatform.cmake b/Tests/RunCMake/GeneratorPlatform/BadPlatform.cmake
new file mode 100644
index 0000000..2fc38e5
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/BadPlatform.cmake
@@ -0,0 +1 @@
+message(FATAL_ERROR "This should not be reached!")
diff --git a/Tests/RunCMake/GeneratorPlatform/CMakeLists.txt b/Tests/RunCMake/GeneratorPlatform/CMakeLists.txt
new file mode 100644
index 0000000..12cd3c7
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/CMakeLists.txt
@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 2.8.4)
+project(${RunCMake_TEST} NONE)
+include(${RunCMake_TEST}.cmake)
diff --git a/Tests/RunCMake/GeneratorPlatform/NoPlatform-result.txt b/Tests/RunCMake/GeneratorPlatform/NoPlatform-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/NoPlatform-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/GeneratorPlatform/NoPlatform-stderr.txt b/Tests/RunCMake/GeneratorPlatform/NoPlatform-stderr.txt
new file mode 100644
index 0000000..e1c0da4
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/NoPlatform-stderr.txt
@@ -0,0 +1,4 @@
+CMake Error at NoPlatform.cmake:2 \(message\):
+  CMAKE_GENERATOR_PLATFORM is empty as expected.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/GeneratorPlatform/NoPlatform.cmake b/Tests/RunCMake/GeneratorPlatform/NoPlatform.cmake
new file mode 100644
index 0000000..1e0ca6d
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/NoPlatform.cmake
@@ -0,0 +1,7 @@
+if("x${CMAKE_GENERATOR_PLATFORM}" STREQUAL "x")
+  message(FATAL_ERROR "CMAKE_GENERATOR_PLATFORM is empty as expected.")
+else()
+  message(FATAL_ERROR
+    "CMAKE_GENERATOR_PLATFORM is \"${CMAKE_GENERATOR_PLATFORM}\" "
+    "but should be empty!")
+endif()
diff --git a/Tests/RunCMake/GeneratorPlatform/RunCMakeTest.cmake b/Tests/RunCMake/GeneratorPlatform/RunCMakeTest.cmake
new file mode 100644
index 0000000..89cc712
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/RunCMakeTest.cmake
@@ -0,0 +1,12 @@
+include(RunCMake)
+
+set(RunCMake_GENERATOR_PLATFORM "")
+run_cmake(NoPlatform)
+
+if("${RunCMake_GENERATOR}" MATCHES "^Visual Studio ([89]|1[0124])( 20[0-9][0-9])?$")
+  set(RunCMake_GENERATOR_PLATFORM "x64")
+  run_cmake(x64Platform)
+else()
+  set(RunCMake_GENERATOR_PLATFORM "Bad Platform")
+  run_cmake(BadPlatform)
+endif()
diff --git a/Tests/RunCMake/GeneratorPlatform/x64Platform-stdout.txt b/Tests/RunCMake/GeneratorPlatform/x64Platform-stdout.txt
new file mode 100644
index 0000000..05a83ff
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/x64Platform-stdout.txt
@@ -0,0 +1,2 @@
+-- CMAKE_GENERATOR_PLATFORM is 'x64' as expected.
+-- CMAKE_VS_PLATFORM_NAME is 'x64' as expected.
diff --git a/Tests/RunCMake/GeneratorPlatform/x64Platform.cmake b/Tests/RunCMake/GeneratorPlatform/x64Platform.cmake
new file mode 100644
index 0000000..a23bdc7
--- /dev/null
+++ b/Tests/RunCMake/GeneratorPlatform/x64Platform.cmake
@@ -0,0 +1,7 @@
+foreach(v CMAKE_GENERATOR_PLATFORM CMAKE_VS_PLATFORM_NAME)
+  if("x${${v}}" STREQUAL "xx64")
+    message(STATUS "${v} is 'x64' as expected.")
+  else()
+    message(FATAL_ERROR "${v} is '${${v}}' but should be 'x64'!")
+  endif()
+endforeach()
diff --git a/Tests/RunCMake/RunCMake.cmake b/Tests/RunCMake/RunCMake.cmake
index 2020356..abc3e3d 100644
--- a/Tests/RunCMake/RunCMake.cmake
+++ b/Tests/RunCMake/RunCMake.cmake
@@ -53,6 +53,7 @@ function(run_cmake test)
     execute_process(
       COMMAND ${CMAKE_COMMAND} "${RunCMake_TEST_SOURCE_DIR}"
                 -G "${RunCMake_GENERATOR}"
+                "-DCMAKE_GENERATOR_PLATFORM=${RunCMake_GENERATOR_PLATFORM}"
                 -T "${RunCMake_GENERATOR_TOOLSET}"
                 -DRunCMake_TEST=${test}
                 --no-warn-unused-cli
diff --git a/Tests/RunCMake/include_external_msproject/check_utils.cmake b/Tests/RunCMake/include_external_msproject/check_utils.cmake
index 7f5ef53..408cadb 100644
--- a/Tests/RunCMake/include_external_msproject/check_utils.cmake
+++ b/Tests/RunCMake/include_external_msproject/check_utils.cmake
@@ -80,7 +80,9 @@ function(check_project test name guid type platform)
     set(type 8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942)
   endif()
   if(NOT platform)
-    if("${RunCMake_GENERATOR}" MATCHES "Win64")
+    if(RunCMake_GENERATOR_PLATFORM)
+      set(platform "${RunCMake_GENERATOR_PLATFORM}")
+    elseif("${RunCMake_GENERATOR}" MATCHES "Win64")
       set(platform "x64")
     else()
       set(platform "Win32")
diff --git a/Tests/StagingPrefix/CMakeLists.txt b/Tests/StagingPrefix/CMakeLists.txt
index 922776d..49ff7fe 100644
--- a/Tests/StagingPrefix/CMakeLists.txt
+++ b/Tests/StagingPrefix/CMakeLists.txt
@@ -38,6 +38,7 @@ add_custom_command(
     --build-project Producer
     --build-target install
     --build-generator ${CMAKE_GENERATOR}
+    --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
     --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
     --build-options
       -DCMAKE_VERBOSE_MAKEFILE=1
@@ -71,6 +72,7 @@ add_custom_command(
    --build-project Consumer
    --build-target install
    --build-generator ${CMAKE_GENERATOR}
+   --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
    --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
    --build-options
       "-DCMAKE_FIND_ROOT_PATH=${CMAKE_BINARY_DIR}/ignored"
diff --git a/Tests/VSExternalInclude/CMakeLists.txt b/Tests/VSExternalInclude/CMakeLists.txt
index cfcccec..37dd4f2 100644
--- a/Tests/VSExternalInclude/CMakeLists.txt
+++ b/Tests/VSExternalInclude/CMakeLists.txt
@@ -19,7 +19,9 @@ make_directory("${LIB2_BINARY_DIR}")
 
 # generate lib1
 execute_process(
-  COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" -T "${CMAKE_GENERATOR_TOOLSET}" "${VSExternalInclude_SOURCE_DIR}/Lib1"
+  COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}"
+    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
+    -T "${CMAKE_GENERATOR_TOOLSET}" "${VSExternalInclude_SOURCE_DIR}/Lib1"
   WORKING_DIRECTORY ${LIB1_BINARY_DIR}
   OUTPUT_VARIABLE OUT
   ERROR_VARIABLE OUT
@@ -28,7 +30,9 @@ message("CMAKE Ran with the following output:\n\"${OUT}\"")
 
 # generate lib2
 execute_process(
-  COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" -T "${CMAKE_GENERATOR_TOOLSET}" "${VSExternalInclude_SOURCE_DIR}/Lib2"
+  COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}"
+    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
+    -T "${CMAKE_GENERATOR_TOOLSET}" "${VSExternalInclude_SOURCE_DIR}/Lib2"
   WORKING_DIRECTORY ${LIB2_BINARY_DIR}
   OUTPUT_VARIABLE OUT
   ERROR_VARIABLE OUT