Add LLVM toolchain for Windows

Author: alef

CMakePresets.json

@@ -30,10 +30,21 @@
       "cacheVariables": {
         "CMAKE_PROJECT_INCLUDE_BEFORE": "${sourceDir}/build-scripts/${presetName}.cmake",
         "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/build-scripts/MSVC.cmake",
+    {
+      "name": "windows-tiles-sounds-x64-llvm",
+      "binaryDir": "${sourceDir}/out/build/${presetName}",
+      "displayName": "Windows Tiles Sounds x64 LLVM",
+      "description": "Target Windows (64-bit) with the LLVM development environment.",
+      "inherits": "windows-tiles-sounds-x64",
+      "environment": {
+        "VCPKG_ROOT": "C:/vcpkg"
+      },
+      "cacheVariables": {
+        "LLVM_ROOT": "C:/Program Files/LLVM",
+        "CMAKE_PROJECT_INCLUDE_BEFORE": "${sourceDir}/build-scripts/windows-tiles-sounds-x64-msvc.cmake",
+        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/build-scripts/LLVM.cmake",
         "VCPKG_TARGET_TRIPLET": "x64-windows-static",
-        "DYNAMIC_LINKING": "False",
-        "CURSES": "False", "LOCALIZE": "True", "TILES": "True", "SOUND": "True", "TESTS": "True",
-        "CMAKE_INSTALL_MESSAGE": "NEVER"
+        "VCPKG_APPLOCAL_DEPS": "False"
       }
     },
     {
@@ -80,6 +91,10 @@
     {
       "name": "windows-tiles-sounds-x64-msvc",
       "configurePreset": "windows-tiles-sounds-x64-msvc"
+    },
+    {
+      "name": "windows-tiles-sounds-x64-llvm",
+      "configurePreset": "windows-tiles-sounds-x64-llvm"
     }
   ],
   "testPresets": [

build-scripts/LLVM.cmake

@@ -0,0 +1,60 @@
+#[=======================================================================[
+
+LLVM
+----
+
+Toolchain file for LLVM CLANG on Windows
+
+Used by CMakePresets.json -> "toolchainFile".
+
+Using clang-cl.exe so we can copy MSVC.cmake flags over here.
+
+Refer to MSVC.cmake documentation
+
+#]=======================================================================]
+
+set(CMAKE_C_COMPILER   "${LLVM_ROOT}/bin/clang-cl.exe")
+set(CMAKE_CXX_COMPILER ${CMAKE_C_COMPILER})
+set(CMAKE_RC_COMPILER  "${LLVM_ROOT}/bin/llvm-rc.exe")
+set(CMAKE_MT "${LLVM_ROOT}/bin/llvm-mt.exe")
+set(CMAKE_OBJDUMP "${LLVM_ROOT}/bin/llvm-objdump.exe")
+
+set(CMAKE_CXX_FLAGS_INIT "\
+/utf-8 /bigobj /permissive- /sdl- /FC /Gd /GS- /Gy /GF \
+/wd4068 /wd4146 /wd4661 /wd4819 /wd6237 /wd6319 /wd26444 /wd26451 /wd26495 /WX- /W1 \
+/Zc:forScope /Zc:inline /Zc:wchar_t"
+)
+set(CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT
+"/Oi"
+)
+
+add_compile_definitions(
+    _SCL_SECURE_NO_WARNINGS
+    _CRT_SECURE_NO_WARNINGS
+    WIN32_LEAN_AND_MEAN
+    LOCALIZE
+    USE_VCPKG
+)
+
+add_link_options(
+    /OPT:REF
+    /OPT:ICF
+    /LTCG:OFF
+    /INCREMENTAL:NO
+    /DYNAMICBASE
+    /NXCOMPAT
+    "$<$<CONFIG:Debug>:/NODEFAULTLIB:LIBCMT>"
+    "$<$<CONFIG:RelWithDebInfo>:/NODEFAULTLIB:LIBCMTD>"
+)
+
+set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+ 
+# Where is vcpkg.json ?
+set(VCPKG_MANIFEST_DIR ${CMAKE_SOURCE_DIR}/msvc-full-features)
+
+set(VCPKG_ROOT "" CACHE PATH "Path to VCPKG installation")
+if (NOT $ENV{VCPKG_ROOT} STREQUAL "")
+    include($ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake)
+elseif(NOT $CACHE{VCPKG_ROOT} STREQUAL "")
+    include($CACHE{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake)
+endif()