Update prebuilt Clang to match Android kernel.
Bug: 132428451
Change-Id: I8f6e2cb23f381fc0c02ddea99b867e58e925e5be
diff --git a/linux-x64/clang/lib64/cmake/llvm/GenerateVersionFromVCS.cmake b/linux-x64/clang/lib64/cmake/llvm/GenerateVersionFromVCS.cmake
new file mode 100644
index 0000000..d8ec54d
--- /dev/null
+++ b/linux-x64/clang/lib64/cmake/llvm/GenerateVersionFromVCS.cmake
@@ -0,0 +1,51 @@
+# CMake script that writes version control information to a header.
+#
+# Input variables:
+# NAMES - A list of names for each of the source directories.
+# <NAME>_SOURCE_DIR - A path to source directory for each name in NAMES.
+# HEADER_FILE - The header file to write
+#
+# The output header will contain macros <NAME>_REPOSITORY and <NAME>_REVISION,
+# where "<NAME>" is substituted with the names specified in the input variables,
+# for each of the <NAME>_SOURCE_DIR given.
+
+get_filename_component(LLVM_CMAKE_DIR "${CMAKE_SCRIPT_MODE_FILE}" PATH)
+
+list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_DIR}")
+
+include(VersionFromVCS)
+
+# Handle strange terminals
+set(ENV{TERM} "dumb")
+
+function(append_info name path)
+ if(path)
+ get_source_info("${path}" revision repository)
+ endif()
+ if(revision)
+ file(APPEND "${HEADER_FILE}.tmp"
+ "#define ${name}_REVISION \"${revision}\"\n")
+ else()
+ file(APPEND "${HEADER_FILE}.tmp"
+ "#undef ${name}_REVISION\n")
+ endif()
+ if(repository)
+ file(APPEND "${HEADER_FILE}.tmp"
+ "#define ${name}_REPOSITORY \"${repository}\"\n")
+ else()
+ file(APPEND "${HEADER_FILE}.tmp"
+ "#undef ${name}_REPOSITORY\n")
+ endif()
+endfunction()
+
+foreach(name IN LISTS NAMES)
+ if(NOT DEFINED ${name}_SOURCE_DIR)
+ message(FATAL_ERROR "${name}_SOURCE_DIR is not defined")
+ endif()
+ append_info(${name} "${${name}_SOURCE_DIR}")
+endforeach()
+
+# Copy the file only if it has changed.
+execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
+ "${HEADER_FILE}.tmp" "${HEADER_FILE}")
+file(REMOVE "${HEADER_FILE}.tmp")