Enable TLS Support for Windows (main)

README.md

@@ -168,32 +168,17 @@ $SRCDIR/packaging/osx/buildpkg.sh . $SRCDIR
 
 ### Windows
 
-Under Windows, the build instructions are very similar, with the main difference
-that Visual Studio is used to compile.
+Under Windows, only Visual Studio with ClangCl is supported
 
-1. Install Visual Studio 2017 (Community Edition is tested)
-1. Install cmake Version 3.12 or higher [CMake](https://cmake.org/)
-1. Download version 1.72 of [Boost](https://boostorg.jfrog.io/artifactory/main/release/1.72.0/source/boost_1_72_0.tar.bz2)
-1. Unpack boost (you don't need to compile it)
-1. Install [Mono](http://www.mono-project.com/download/stable/)
-1. (Optional) Install a [JDK](http://www.oracle.com/technetwork/java/javase/downloads/index.html). FoundationDB currently builds with Java 8
-1. Set `JAVA_HOME` to the unpacked location and JAVA_COMPILE to
-   `$JAVA_HOME/bin/javac`.
-1. Install [Python](https://www.python.org/downloads/) if it is not already installed by Visual Studio
-1. (Optional) Install [WIX](http://wixtoolset.org/). Without it Visual Studio
-   won't build the Windows installer
-1. Create a build directory (you can have the build directory anywhere you
-   like): `mkdir build`
-1. `cd build`
-1. `cmake -G "Visual Studio 15 2017 Win64" -DBOOST_ROOT=<PATH_TO_BOOST> <PATH_TO_FOUNDATIONDB_DIRECTORY>`
-1. This should succeed. In which case you can build using msbuild:
-   `msbuild /p:Configuration=Release foundationdb.sln`. You can also open the resulting
-   solution in Visual Studio and compile from there. However, be aware that
-   using Visual Studio for development is currently not supported as Visual
-   Studio will only know about the generated files. `msbuild` is located at
-   `c:\Program Files (x86)\MSBuild\14.0\Bin\MSBuild.exe` for Visual Studio 15.
-
-If you installed WIX before running `cmake` you should find the
-`FDBInstaller.msi` in your build directory under `packaging/msi`. 
-
-TODO: Re-add instructions for TLS support [#3022](https://github.com/apple/foundationdb/issues/3022)
+1. Install Visual Studio 2019 (IDE or Build Tools), and enable llvm support
+1. Install  [CMake 3.15](https://cmake.org/) or higher
+1. Download [Boost 1.77.0](https://boostorg.jfrog.io/artifactory/main/release/1.77.0/source/boost_1_77_0.7z)
+1. Unpack boost to C:\boost, or use `-DBOOST_ROOT=<PATH_TO_BOOST>` with `cmake` if unpacked elsewhere
+1. Install [Python](https://www.python.org/downloads/) if is not already installed by Visual Studio
+1. (Optional) Install [OpenJDK 11](https://developers.redhat.com/products/openjdk/download) to build Java bindings
+1. (Optional) Install [OpenSSL 3.x](https://slproweb.com/products/Win32OpenSSL.html) to build with TLS support
+1. (Optional) Install [WIX Toolset](http://wixtoolset.org/) to build Windows installer
+1. `mkdir build && cd build`
+1. `cmake -G "Visual Studio 16 2019" -A x64 -T ClangCl <PATH_TO_FOUNDATIONDB_SOURCE>`
+1. `msbuild /p:Configuration=Release foundationdb.sln`
+1. To increase build performance, use `/p:UseMultiToolTask=true` and `/p:CL_MPCount=<NUMBER_OF_PARALLEL_JOBS>` 

cmake/FDBComponents.cmake

@@ -25,6 +25,9 @@ if(DISABLE_TLS)
   set(WITH_TLS OFF)
 else()
   set(OPENSSL_USE_STATIC_LIBS TRUE)
+  if(WIN32)
+    set(OPENSSL_MSVC_STATIC_RT ON)
+  endif()
   find_package(OpenSSL)
   if(OPENSSL_FOUND)
     set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
@@ -34,10 +37,6 @@ else()
     message(STATUS "You can set OPENSSL_ROOT_DIR to help cmake find it")
     set(WITH_TLS OFF)
   endif()
-  if(WIN32)
-    message(STATUS "TLS is temporarilty disabled on Windows while libressl -> openssl transition happens")
-    set(WITH_TLS OFF)
-  endif()
 endif()
 
 ################################################################################