Windows: Merge user-provided manifests into compiled resource

Previously we merged user-provided manifests only into the manifest file
given to the linker.  Merge them into the manifest file that is compiled
as a resource too.

Source/cmcmd.cxx

@@ -2084,12 +2084,18 @@ int cmVSLink::LinkIncremental()
   }
 
   // If we have not previously generated a manifest file,
-  // generate an empty one so the resource compiler succeeds.
+  // generate a manifest file so the resource compiler succeeds.
   if (!cmSystemTools::FileExists(this->ManifestFile)) {
     if (this->Verbose) {
       std::cout << "Create empty: " << this->ManifestFile << "\n";
     }
-    cmsys::ofstream foutTmp(this->ManifestFile.c_str());
+    if (this->UserManifests.empty()) {
+      // generate an empty manifest because there are no user provided
+      // manifest files.
+      cmsys::ofstream foutTmp(this->ManifestFile.c_str());
+    } else {
+      this->RunMT("/out:" + this->ManifestFile, false);
+    }
   }
 
   // Compile the resource file.
@@ -2157,7 +2163,10 @@ int cmVSLink::RunMT(std::string const& out, bool notify)
   mtCommand.push_back(this->MtPath.empty() ? "mt" : this->MtPath);
   mtCommand.emplace_back("/nologo");
   mtCommand.emplace_back("/manifest");
-  if (this->LinkGeneratesManifest) {
+
+  // add the linker generated manifest if the file exists.
+  if (this->LinkGeneratesManifest &&
+      cmSystemTools::FileExists(this->LinkerManifestFile)) {
     mtCommand.push_back(this->LinkerManifestFile);
   }
   cm::append(mtCommand, this->UserManifests);

Tests/CMakeLists.txt

@@ -363,7 +363,10 @@ if(BUILD_TESTING)
       add_test_macro(VSResourceNinjaForceRSP VSResourceNinjaForceRSP)
     endif ()
   endif()
-  ADD_TEST_MACRO(MSManifest MSManifest)
+  if(_isMultiConfig)
+    set(MSManifest_CTEST_OPTIONS -C $<CONFIGURATION>)
+  endif()
+  ADD_TEST_MACRO(MSManifest ${CMAKE_CTEST_COMMAND} -V -C $<CONFIGURATION>)
   ADD_TEST_MACRO(Simple Simple)
   ADD_TEST_MACRO(PreOrder PreOrder)
   ADD_TEST_MACRO(MissingSourceFile MissingSourceFile)

Tests/MSManifest/CMakeLists.txt

@@ -1,5 +1,8 @@
 cmake_minimum_required(VERSION 3.3)
 project(MSManifest C)
 
+include(CTest)
+
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
 add_subdirectory(Subdir)
+add_subdirectory(Subdir2)

Tests/MSManifest/Subdir/CMakeLists.txt

@@ -2,10 +2,9 @@ configure_file(test.manifest.in test.manifest)
 add_executable(MSManifest main.c ${CMAKE_CURRENT_BINARY_DIR}/test.manifest)
 
 if(MSVC AND NOT MSVC_VERSION LESS 1400)
-  add_custom_command(TARGET MSManifest POST_BUILD VERBATIM
-    COMMAND ${CMAKE_COMMAND} -Dexe=$<TARGET_FILE:MSManifest>
-            -P ${CMAKE_CURRENT_SOURCE_DIR}/check.cmake
-    )
+  add_test(NAME MSManifest.Single COMMAND
+    ${CMAKE_COMMAND} -Dexe=$<TARGET_FILE:MSManifest>
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/check.cmake)
   add_executable(MSManifestNone main.c)
   set_property(TARGET MSManifestNone PROPERTY LINK_FLAGS "/MANIFEST:NO")
 endif()

Tests/MSManifest/Subdir2/CMakeLists.txt

@@ -0,0 +1,13 @@
+configure_file(test_manifest1.in test_manifest1.manifest)
+configure_file(test_manifest2.in test_manifest2.manifest)
+configure_file(test_manifest3.in test_manifest3.manifest)
+add_executable(MSMultipleManifest main.c
+ ${CMAKE_CURRENT_BINARY_DIR}/test_manifest1.manifest
+ ${CMAKE_CURRENT_BINARY_DIR}/test_manifest2.manifest
+ ${CMAKE_CURRENT_BINARY_DIR}/test_manifest3.manifest)
+
+if(MSVC AND NOT MSVC_VERSION LESS 1400)
+  add_test(NAME MSManifest.Multiple COMMAND
+    ${CMAKE_COMMAND} -Dexe=$<TARGET_FILE:MSMultipleManifest>
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/check.cmake)
+endif()

Tests/MSManifest/Subdir2/check.cmake

@@ -0,0 +1,22 @@
+file(STRINGS "${exe}" manifest_content1 REGEX "name=\"Kitware.CMake.MSMultipleManifest\"")
+if(manifest_content1)
+  message(STATUS "Expected manifest content found:\n ${manifest_content1}")
+else()
+  message(FATAL_ERROR "Expected manifest content not found in\n ${exe}")
+endif()
+
+# Verify Second Manifest Content is inside Executable.
+file(STRINGS "${exe}" manifest_content2 REGEX "8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a")
+if(manifest_content2)
+  message(STATUS "Expected manifest content found:\n ${manifest_content2}")
+else()
+  message(FATAL_ERROR "Expected manifest content not found in\n ${exe}")
+endif()
+
+# Verify Third Manifest Content is inside Executable.
+file(STRINGS "${exe}" manifest_content3 REGEX "<dpiAware>true</dpiAware>")
+if(manifest_content3)
+  message(STATUS "Expected manifest content found:\n ${manifest_content3}")
+else()
+  message(FATAL_ERROR "Expected manifest content not found in\n ${exe}")
+endif()

Tests/MSManifest/Subdir2/main.c

@@ -0,0 +1,4 @@
+int main(void)
+{
+  return 0;
+}

Tests/MSManifest/Subdir2/test_manifest1.in

@@ -0,0 +1,5 @@
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <assemblyIdentity type="win32" version="1.0.0.0"
+                    name="Kitware.CMake.MSMultipleManifest"/>
+	<description>CMake Multiple Manifest Test Application</description>
+</assembly>

Tests/MSManifest/Subdir2/test_manifest2.in

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+	<compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+		<application>
+			<supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"></supportedOS>
+			<supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"></supportedOS>
+			<supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"></supportedOS>
+			<supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"></supportedOS>
+			<supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"></supportedOS>
+		</application>
+	</compatibility>
+</assembly>

Tests/MSManifest/Subdir2/test_manifest3.in

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" >
+  <asmv3:application>
+    <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
+      <dpiAware>true</dpiAware>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </asmv3:windowsSettings>
+  </asmv3:application>
+</assembly>