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diff --git a/contrib/llvm/tools/clang/include/clang-c/CXCompilationDatabase.h b/contrib/llvm/tools/clang/include/clang-c/CXCompilationDatabase.h
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+++ b/contrib/llvm/tools/clang/include/clang-c/CXCompilationDatabase.h
@@ -0,0 +1,146 @@
+/*===-- clang-c/CXCompilationDatabase.h - Compilation database  ---*- 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 a public inferface to use CompilationDatabase without *|
+|* the full Clang C++ API.                                                    *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef CLANG_CXCOMPILATIONDATABASE_H
+#define CLANG_CXCOMPILATIONDATABASE_H
+
+#include "clang-c/Platform.h"
+#include "clang-c/CXString.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** \defgroup COMPILATIONDB CompilationDatabase functions
+ * \ingroup CINDEX
+ *
+ * @{
+ */
+
+/**
+ * A compilation database holds all information used to compile files in a
+ * project. For each file in the database, it can be queried for the working
+ * directory or the command line used for the compiler invocation.
+ *
+ * Must be freed by \c clang_CompilationDatabase_dispose
+ */
+typedef void * CXCompilationDatabase;
+
+/**
+ * \brief Contains the results of a search in the compilation database
+ *
+ * When searching for the compile command for a file, the compilation db can
+ * return several commands, as the file may have been compiled with
+ * different options in different places of the project. This choice of compile
+ * commands is wrapped in this opaque data structure. It must be freed by
+ * \c clang_CompileCommands_dispose.
+ */
+typedef void * CXCompileCommands;
+
+/**
+ * \brief Represents the command line invocation to compile a specific file.
+ */
+typedef void * CXCompileCommand;
+
+/**
+ * \brief Error codes for Compilation Database
+ */
+typedef enum  {
+  /*
+   * \brief No error occured
+   */
+  CXCompilationDatabase_NoError = 0,
+
+  /*
+   * \brief Database can not be loaded
+   */
+  CXCompilationDatabase_CanNotLoadDatabase = 1
+
+} CXCompilationDatabase_Error;
+
+/**
+ * \brief Creates a compilation database from the database found in directory
+ * buildDir. For example, CMake can output a compile_commands.json which can
+ * be used to build the database.
+ *
+ * It must be freed by \c clang_CompilationDatabase_dispose.
+ */
+CINDEX_LINKAGE CXCompilationDatabase
+clang_CompilationDatabase_fromDirectory(const char *BuildDir,
+                                        CXCompilationDatabase_Error *ErrorCode);
+
+/**
+ * \brief Free the given compilation database
+ */
+CINDEX_LINKAGE void
+clang_CompilationDatabase_dispose(CXCompilationDatabase);
+
+/**
+ * \brief Find the compile commands used for a file. The compile commands
+ * must be freed by \c clang_CompileCommands_dispose.
+ */
+CINDEX_LINKAGE CXCompileCommands
+clang_CompilationDatabase_getCompileCommands(CXCompilationDatabase,
+                                             const char *CompleteFileName);
+
+/**
+ * \brief Free the given CompileCommands
+ */
+CINDEX_LINKAGE void clang_CompileCommands_dispose(CXCompileCommands);
+
+/**
+ * \brief Get the number of CompileCommand we have for a file
+ */
+CINDEX_LINKAGE unsigned
+clang_CompileCommands_getSize(CXCompileCommands);
+
+/**
+ * \brief Get the I'th CompileCommand for a file
+ *
+ * Note : 0 <= i < clang_CompileCommands_getSize(CXCompileCommands)
+ */
+CINDEX_LINKAGE CXCompileCommand
+clang_CompileCommands_getCommand(CXCompileCommands, unsigned I);
+
+/**
+ * \brief Get the working directory where the CompileCommand was executed from
+ */
+CINDEX_LINKAGE CXString
+clang_CompileCommand_getDirectory(CXCompileCommand);
+
+/**
+ * \brief Get the number of arguments in the compiler invocation.
+ *
+ */
+CINDEX_LINKAGE unsigned
+clang_CompileCommand_getNumArgs(CXCompileCommand);
+
+/**
+ * \brief Get the I'th argument value in the compiler invocations
+ *
+ * Invariant :
+ *  - argument 0 is the compiler executable
+ */
+CINDEX_LINKAGE CXString
+clang_CompileCommand_getArg(CXCompileCommand, unsigned I);
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+