Factor CXString out of Index.h
No functionnal or interface change. This is done to prepare the landing of
CompilationDatabase in libclang.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159382 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang-c/Platform.h b/include/clang-c/Platform.h
new file mode 100644
index 0000000..0f866c6
--- /dev/null
+++ b/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 CLANG_C_PLATFORM_H
+#define 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