1 files changed, 111 insertions, 0 deletions
diff --git a/build_files/cmake/Modules/FindClang.cmake b/build_files/cmake/Modules/FindClang.cmake
new file mode 100644
index 00000000000..b5c2cfbc28d
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+++ b/build_files/cmake/Modules/FindClang.cmake
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+# - Find Clang library
+# Find the native Clang includes and library
+# This module defines
+#  CLANG_INCLUDE_DIRS, where to find AST/AST.h, Set when
+#                            CLANG_INCLUDE_DIR is found.
+#  CLANG_LIBRARIES, libraries to link against to use Clang.
+#  CLANG_ROOT_DIR, The base directory to search for Clang.
+#                        This can also be an environment variable.
+#  CLANG_FOUND, If false, do not try to use Clang.
+
+#=============================================================================
+# Copyright 2021 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD 3-Clause License,
+# see accompanying file BSD-3-Clause-license.txt for details.
+#=============================================================================
+
+# If CLANG_ROOT_DIR was defined in the environment, use it.
+if(NOT CLANG_ROOT_DIR AND NOT $ENV{CLANG_ROOT_DIR} STREQUAL "")
+  set(CLANG_ROOT_DIR $ENV{CLANG_ROOT_DIR})
+endif()
+
+set(_CLANG_SEARCH_DIRS
+  ${CLANG_ROOT_DIR}
+  /opt/lib/clang
+)
+
+find_path(CLANG_INCLUDE_DIR
+  NAMES
+    AST/AST.h
+  HINTS
+    ${_CLANG_SEARCH_DIRS}
+  PATH_SUFFIXES
+    include
+    include/clang
+)
+
+
+set(_CLANG_FIND_COMPONENTS
+  clangDependencyScanning
+  clangDynamicASTMatchers
+  clangFrontendTool
+  clangStaticAnalyzerFrontend
+  clangHandleCXX
+  clangStaticAnalyzerCheckers
+  clangStaticAnalyzerCore
+  clangToolingASTDiff
+  clangToolingRefactoring
+  clangToolingSyntax
+  clangARCMigrate
+  clangCodeGen
+  clangCrossTU
+  clangIndex
+  clangTooling
+  clangFormat
+  clangToolingInclusions
+  clangRewriteFrontend
+  clangFrontend
+  clangSerialization
+  clangDriver
+  clangToolingCore
+  clangParse
+  clangRewrite
+  clangSema
+  clangEdit
+  clangAnalysis
+  clangASTMatchers
+  clangAST
+  clangLex
+  clangBasic
+)
+
+set(_CLANG_LIBRARIES)
+foreach(COMPONENT ${_CLANG_FIND_COMPONENTS})
+  string(TOUPPER ${COMPONENT} UPPERCOMPONENT)
+
+  find_library(CLANG_${UPPERCOMPONENT}_LIBRARY
+    NAMES
+      ${COMPONENT}
+    HINTS
+      ${_CLANG_SEARCH_DIRS}
+    PATH_SUFFIXES
+      lib64 lib
+    )
+  list(APPEND _CLANG_LIBRARIES "${CLANG_${UPPERCOMPONENT}_LIBRARY}")
+endforeach()
+
+
+# Handle the QUIETLY and REQUIRED arguments and set CLANG_FOUND to TRUE if
+# all listed variables are TRUE.
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Clang DEFAULT_MSG
+    _CLANG_LIBRARIES CLANG_INCLUDE_DIR)
+
+if(CLANG_FOUND)
+  set(CLANG_LIBRARIES ${_CLANG_LIBRARIES})
+  set(CLANG_INCLUDE_DIRS ${CLANG_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(
+  CLANG_INCLUDE_DIR
+)
+
+foreach(COMPONENT ${_CLANG_FIND_COMPONENTS})
+  string(TOUPPER ${COMPONENT} UPPERCOMPONENT)
+  mark_as_advanced(CLANG_${UPPERCOMPONENT}_LIBRARY)
+endforeach()
+
+unset(_CLANG_SEARCH_DIRS)
+unset(_CLANG_FIND_COMPONENTS)
+unset(_CLANG_LIBRARIES)