Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/clang-c/Platform.h b/linux-x64/clang/include/clang-c/Platform.h
new file mode 100644
index 0000000..e2a4dcc
--- /dev/null
+++ b/linux-x64/clang/include/clang-c/Platform.h
@@ -0,0 +1,45 @@
+/*===-- clang-c/Platform.h - C Index platform decls   -------------*- C -*-===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This header provides platform specific macros (dllimport, deprecated, ...) *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef LLVM_CLANG_C_PLATFORM_H
+#define LLVM_CLANG_C_PLATFORM_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* MSVC DLL import/export. */
+#ifdef _MSC_VER
+  #ifdef _CINDEX_LIB_
+    #define CINDEX_LINKAGE __declspec(dllexport)
+  #else
+    #define CINDEX_LINKAGE __declspec(dllimport)
+  #endif
+#else
+  #define CINDEX_LINKAGE
+#endif
+
+#ifdef __GNUC__
+  #define CINDEX_DEPRECATED __attribute__((deprecated))
+#else
+  #ifdef _MSC_VER
+    #define CINDEX_DEPRECATED __declspec(deprecated)
+  #else
+    #define CINDEX_DEPRECATED
+  #endif
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif