VS11: Add VS 2012 Express support (#13348)

Use the registry entries that vsvars32.bat uses to detect the location of
MSBuild.exe in the framework directory.  Invoke MSBuild with the option

 /p:VisualStudioVersion=$version

so it knows from which VS version to load the system build rules.  Teach
cmGlobalVisualStudio11Generator to set its ExpressEdition member using the
registry.

Modules/CMakeDetermineCompilerId.cmake

@@ -143,7 +143,7 @@ Id flags: ${testflags}
       set(id_toolset "")
     endif()
     if("${CMAKE_MAKE_PROGRAM}" MATCHES "[Mm][Ss][Bb][Uu][Ii][Ll][Dd]")
-      set(build /p:Configuration=Debug /p:Platform=@id_arch@)
+      set(build /p:Configuration=Debug /p:Platform=@id_arch@ /p:VisualStudioVersion=${vs_version}.0)
     elseif("${CMAKE_MAKE_PROGRAM}" MATCHES "[Mm][Ss][Dd][Ee][Vv]")
       set(build /make)
     else()

Modules/CMakeVS11FindMake.cmake

@@ -34,15 +34,14 @@ find_program(CMAKE_MAKE_PROGRAM
 
 # if devenv is not found, then use MSBuild.
 # it is expected that if devenv is not found, then we are
-# dealing with Visual Studio Express.  VCExpress has random
-# failures when being run as a command line build tool which
-# causes the compiler checks and try-compile stuff to fail. MSbuild
-# is a better choice for this.  However, VCExpress does not support
-# cross compiling needed for Win CE.
+# dealing with Visual Studio Express.
 if(NOT CMAKE_CROSSCOMPILING)
+  set(_FDIR "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\SxS\\VC7;FrameworkDir32]")
+  set(_FVER "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\SxS\\VC7;FrameworkVer32]")
   find_program(CMAKE_MAKE_PROGRAM
     NAMES MSBuild
     HINTS
+    ${_FDIR}/${_FVER}
     [HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\11.0\\Setup\\VS;ProductDir]
     "$ENV{SYSTEMROOT}/Microsoft.NET/Framework/[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\11.0;CLR Version]/"
     "c:/WINDOWS/Microsoft.NET/Framework/[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\11.0;CLR Version]/"

Source/cmGlobalVisualStudio10Generator.cxx

@@ -205,6 +205,8 @@ std::string cmGlobalVisualStudio10Generator
     {
     makeCommand += "Debug";
     }
+  makeCommand += " /p:VisualStudioVersion=";
+  makeCommand += this->GetIDEVersion();
   if ( additionalOptions )
     {
     makeCommand += " ";

Source/cmGlobalVisualStudio11Generator.cxx

@@ -17,7 +17,10 @@
 cmGlobalVisualStudio11Generator::cmGlobalVisualStudio11Generator()
 {
   this->FindMakeProgramFile = "CMakeVS11FindMake.cmake";
-  this->ExpressEdition = false; // TODO: VS 11 Express support
+  std::string vc11Express;
+  this->ExpressEdition = cmSystemTools::ReadRegistryValue(
+    "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VCExpress\\11.0\\Setup\\VC;"
+    "ProductDir", vc11Express, cmSystemTools::KeyWOW64_32);
   this->PlatformToolset = "v110";
 }