[llvm] Support to export dll on windows

ports/llvm/0012-fix-enable-export-dll.patch

@@ -0,0 +1,39 @@
+diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
+index d2982f1..ee1e563 100644
+--- a/llvm/CMakeLists.txt
++++ b/llvm/CMakeLists.txt
+@@ -648,9 +648,6 @@ if(MSVC)
+   # Set this variable to OFF here so it can't be set with a command-line
+   # argument.
+   set (LLVM_LINK_LLVM_DYLIB OFF)
+-  if (BUILD_SHARED_LIBS)
+-    message(FATAL_ERROR "BUILD_SHARED_LIBS options is not supported on Windows.")
+-  endif()
+ else()
+   option(LLVM_LINK_LLVM_DYLIB "Link tools against the libllvm dynamic library" OFF)
+   option(LLVM_BUILD_LLVM_C_DYLIB "Build libllvm-c re-export library (Darwin only)" OFF)
+diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
+index fcaa8f2..9e9f82d 100644
+--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
++++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
+@@ -1136,13 +1136,14 @@ endif()
+ CMAKE_DEPENDENT_OPTION(LLVM_EXPORT_SYMBOLS_FOR_PLUGINS
+        "Export symbols from LLVM tools so that plugins can import them" OFF
+        "NOT ${CMAKE_SYSTEM_NAME} MATCHES AIX" ${LLVM_EXPORT_SYMBOLS_FOR_PLUGINS_AIX_default})
+-if(BUILD_SHARED_LIBS AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)
+-  message(FATAL_ERROR "BUILD_SHARED_LIBS not compatible with LLVM_EXPORT_SYMBOLS_FOR_PLUGINS")
+-endif()
+-if(LLVM_LINK_LLVM_DYLIB AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)
+-  message(FATAL_ERROR "LLVM_LINK_LLVM_DYLIB not compatible with LLVM_EXPORT_SYMBOLS_FOR_PLUGINS")
++if(0)
++    if(BUILD_SHARED_LIBS AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)
++      message(FATAL_ERROR "BUILD_SHARED_LIBS not compatible with LLVM_EXPORT_SYMBOLS_FOR_PLUGINS")
++    endif()
++    if(LLVM_LINK_LLVM_DYLIB AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)
++      message(FATAL_ERROR "LLVM_LINK_LLVM_DYLIB not compatible with LLVM_EXPORT_SYMBOLS_FOR_PLUGINS")
++    endif()
+ endif()
+-
+ # By default we should enable LLVM_ENABLE_IDE only for multi-configuration
+ # generators. This option disables optional build system features that make IDEs
+ # less usable.

ports/llvm/portfile.cmake

@@ -1,6 +1,10 @@
 set(LLVM_VERSION "14.0.4")
 
-vcpkg_check_linkage(ONLY_STATIC_LIBRARY)
+if (VCPKG_TARGET_IS_WINDOWS AND (VCPKG_LIBRARY_LINKAGE STREQUAL dynamic))
+    list(APPEND OPTIONS -DLLVM_EXPORT_SYMBOLS_FOR_PLUGINS=enabled)
+else()
+    vcpkg_check_linkage(ONLY_STATIC_LIBRARY)
+endif()
 
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
@@ -16,6 +20,7 @@ vcpkg_from_github(
         0009-fix-tools-install-path.patch
         0010-fix-libffi.patch
         0011-fix-install-bolt.patch
+        0012-fix-enable-export-dll.patch
 )
 
 vcpkg_check_features(
@@ -232,6 +237,7 @@ set(LLVM_LINK_JOBS 1)
 vcpkg_cmake_configure(
     SOURCE_PATH ${SOURCE_PATH}/llvm
     OPTIONS
+        ${OPTIONS}
         ${FEATURE_OPTIONS}
         -DLLVM_INCLUDE_EXAMPLES=OFF
         -DLLVM_BUILD_EXAMPLES=OFF

ports/llvm/vcpkg.json

@@ -1,6 +1,7 @@
 {
   "name": "llvm",
   "version": "14.0.4",
+  "port-version": 1,
   "description": "The LLVM Compiler Infrastructure.",
   "homepage": "https://llvm.org",
   "license": "Apache-2.0",

scripts/ci.baseline.txt

@@ -1254,8 +1254,6 @@ vcpkg-ci-llvm:x64-linux=pass
 vcpkg-ci-llvm:x64-osx=pass
 vcpkg-ci-llvm:x64-windows-static-md=pass
 vcpkg-ci-llvm:x64-windows-static=pass
-vcpkg-ci-llvm:x64-windows=pass
-vcpkg-ci-llvm:x86-windows=pass
 vcpkg-ci-opencv:arm-uwp=pass
 vcpkg-ci-opencv:arm64-windows=pass
 vcpkg-ci-opencv:x64-linux=pass

versions/baseline.json

@@ -4542,7 +4542,7 @@
     },
     "llvm": {
       "baseline": "14.0.4",
-      "port-version": 0
+      "port-version": 1
     },
     "lmdb": {
       "baseline": "0.9.29",

versions/l-/llvm.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "1a7952d43e07cbd3165e9282d7c6bef7042fd417",
+      "version": "14.0.4",
+      "port-version": 1
+    },
     {
       "git-tree": "7f97dd1dc56be6b5637b8406bd01ac0c245eb0dc",
       "version": "14.0.4",