From aea2734ad4c7fbe04bd5f35844aa72e4300d74fb Mon Sep 17 00:00:00 2001
From: Stephane Lajoie <dada@typicus.org>
Date: Sun, 9 Jul 2017 19:47:35 -0400
Subject: [PATCH] Patch CMakeLists to install CMake modules to share/llvm
 instead of lib/cmake/llvm. This works better than vcpkg_fixup_cmake_targets
 because other parts of the LLVM build system really want all the variables
 set correctly. Also set other options to prevent creation of any bin/*
 instead of removing them after the fact, for the same reason.

---
 .../llvm/install-cmake-modules-to-share.patch | 10 ++++++
 ports/llvm/portfile.cmake                     | 33 +++++++------------
 2 files changed, 21 insertions(+), 22 deletions(-)
 create mode 100644 ports/llvm/install-cmake-modules-to-share.patch

diff --git a/ports/llvm/install-cmake-modules-to-share.patch b/ports/llvm/install-cmake-modules-to-share.patch
new file mode 100644
index 000000000..b5193beca
--- /dev/null
+++ b/ports/llvm/install-cmake-modules-to-share.patch
@@ -0,0 +1,10 @@
+diff --git a/cmake/modules/CMakeLists.txt b/cmake/modules/CMakeLists.txt
+index ac4b0b7..13a271d 100644
+--- a/cmake/modules/CMakeLists.txt
++++ b/cmake/modules/CMakeLists.txt
+@@ -1,4 +1,4 @@
+-set(LLVM_INSTALL_PACKAGE_DIR lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm)
++set(LLVM_INSTALL_PACKAGE_DIR share/llvm)
+ set(llvm_cmake_builddir "${LLVM_BINARY_DIR}/${LLVM_INSTALL_PACKAGE_DIR}")
+ 
+ # First for users who use an installed LLVM, create the LLVMExports.cmake file.
diff --git a/ports/llvm/portfile.cmake b/ports/llvm/portfile.cmake
index c09b66ff4..9edf7f2b1 100644
--- a/ports/llvm/portfile.cmake
+++ b/ports/llvm/portfile.cmake
@@ -1,15 +1,3 @@
-# Common Ambient Variables:
-#   CURRENT_BUILDTREES_DIR    = ${VCPKG_ROOT_DIR}\buildtrees\${PORT}
-#   CURRENT_PACKAGES_DIR      = ${VCPKG_ROOT_DIR}\packages\${PORT}_${TARGET_TRIPLET}
-#   CURRENT_PORT_DIR          = ${VCPKG_ROOT_DIR}\ports\${PORT}
-#   PORT                      = current port name (zlib, etc)
-#   TARGET_TRIPLET            = current triplet (x86-windows, x64-windows-static, etc)
-#   VCPKG_CRT_LINKAGE         = C runtime linkage type (static, dynamic)
-#   VCPKG_LIBRARY_LINKAGE     = target library linkage type (static, dynamic)
-#   VCPKG_ROOT_DIR            = <C:\path\to\current\vcpkg>
-#   VCPKG_TARGET_ARCHITECTURE = target architecture (x64, x86, arm)
-#
-
 # LLVM documentation recommends always using static library linkage when
 #   building with Microsoft toolchain; it's also the default on other platforms
 set(VCPKG_LIBRARY_LINKAGE static)
@@ -23,29 +11,30 @@ vcpkg_download_distfile(ARCHIVE
 )
 vcpkg_extract_source_archive(${ARCHIVE})
 
+vcpkg_apply_patches(
+    SOURCE_PATH ${SOURCE_PATH}
+    PATCHES ${CMAKE_CURRENT_LIST_DIR}/install-cmake-modules-to-share.patch
+)
+
 vcpkg_configure_cmake(
     SOURCE_PATH ${SOURCE_PATH}
     PREFER_NINJA
     OPTIONS
         -DLLVM_TARGETS_TO_BUILD=X86
-        -DLLVM_BUILD_TOOLS=OFF
-        -DLLVM_BUILD_UTILS=OFF
+        -DLLVM_INCLUDE_TOOLS=OFF
+        -DLLVM_INCLUDE_UTILS=OFF
+        -DLLVM_INCLUDE_EXAMPLES=OFF
+        -DLLVM_INCLUDE_TESTS=OFF
         -DLLVM_ABI_BREAKING_CHECKS=FORCE_OFF
+        -DLLVM_TOOLS_INSTALL_DIR=tools
 )
 
 vcpkg_install_cmake()
 
-# Move cmake modules to correct vcpkg location and remove extra copy
-vcpkg_fixup_cmake_targets(CONFIG_PATH lib/cmake/llvm)
+# Remove extra copy of cmake modules and include files
 file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/share)
-
-# Remove extra copies of include files in debug directory
 file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
 
-# Remove bin directories
-file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/bin)
-file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/bin)
-
 # Remove one empty include subdirectory if it is indeed empty
 file(GLOB MCANALYSISFILES ${CURRENT_PACKAGES_DIR}/include/llvm/MC/MCAnalysis/*)
 if(NOT MCANALYSISFILES)