Check in LLVM r95781.
diff --git a/lib/Bitcode/Writer/BitWriter.cpp b/lib/Bitcode/Writer/BitWriter.cpp
new file mode 100644
index 0000000..7ed651b
--- /dev/null
+++ b/lib/Bitcode/Writer/BitWriter.cpp
@@ -0,0 +1,46 @@
+//===-- BitWriter.cpp -----------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm-c/BitWriter.h"
+#include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
+
+
+/*===-- Operations on modules ---------------------------------------------===*/
+
+int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path) {
+ std::string ErrorInfo;
+ raw_fd_ostream OS(Path, ErrorInfo,
+ raw_fd_ostream::F_Binary);
+
+ if (!ErrorInfo.empty())
+ return -1;
+
+ WriteBitcodeToFile(unwrap(M), OS);
+ return 0;
+}
+
+#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR >= 4)
+#include <ext/stdio_filebuf.h>
+
+int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
+ raw_fd_ostream OS(FileHandle, false);
+
+ WriteBitcodeToFile(unwrap(M), OS);
+ return 0;
+}
+
+#else
+
+int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
+ return -1; // Not supported.
+}
+
+#endif