This addresses LLDB bug 31699, which was caused by LLVM using static linking on Windows.

In order to make sure that LLVM continues to work on machines that do not have the Universal CRT yet,
we'll need to ship a copy of UCRT in the Windows installation package. Fortunately, CMake 3.6+ already
supports app-local deployment of UCRT dlls, we just need to turn this on.

Differential Revision: https://reviews.llvm.org/D29146


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293373 91177308-0d34-0410-b5e6-96231b3b80d8

Author: vadimcn

CMakeLists.txt

@@ -978,3 +978,8 @@ if(LLVM_DISTRIBUTION_COMPONENTS)
     endif()
   endforeach()
 endif()
+
+# This allows us to deploy the Universal CRT DLLs by passing -DCMAKE_INSTALL_UCRT_LIBRARIES=ON to CMake
+if (MSVC)
+  include(InstallRequiredSystemLibraries)
+endif()

utils/release/build_llvm_package.bat

@@ -51,7 +51,7 @@ svn.exe export -r %revision% http://llvm.org/svn/llvm-project/lldb/%branch% llvm
 
 
 REM Setting CMAKE_CL_SHOWINCLUDES_PREFIX to work around PR27226.
-set cmake_flags=-DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_INSTALL_TOOLCHAIN_ONLY=ON -DLLVM_USE_CRT_RELEASE=MT -DCLANG_FORMAT_VS_VERSION=%clang_format_vs_version% -DPACKAGE_VERSION=%package_version% -DLLDB_RELOCATABLE_PYTHON=1 -DLLDB_TEST_COMPILER=%cd%\build32_stage0\bin\clang.exe -DCMAKE_CL_SHOWINCLUDES_PREFIX="Note: including file: "
+set cmake_flags=-DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_INSTALL_TOOLCHAIN_ONLY=ON -DCMAKE_INSTALL_UCRT_LIBRARIES=ON -DCLANG_FORMAT_VS_VERSION=%clang_format_vs_version% -DPACKAGE_VERSION=%package_version% -DLLDB_RELOCATABLE_PYTHON=1 -DLLDB_TEST_COMPILER=%cd%\build32_stage0\bin\clang.exe -DCMAKE_CL_SHOWINCLUDES_PREFIX="Note: including file: "
 
 REM TODO: Run all tests, including lld and compiler-rt.