1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Support/MemoryBuffer.cpp b/lib/Support/MemoryBuffer.cpp
index 8042237..82812c0 100644
--- a/lib/Support/MemoryBuffer.cpp
+++ b/lib/Support/MemoryBuffer.cpp
@@ -33,8 +33,7 @@
 #include <unistd.h>
 #else
 #include <io.h>
-// Simplistic definitinos of these macros to allow files to be read with
-// MapInFilePages.
+// Simplistic definitinos of these macros for use in getOpenFile.
 #ifndef S_ISREG
 #define S_ISREG(x) (1)
 #endif
@@ -72,10 +71,12 @@ static void CopyStringRef(char *Memory, StringRef Data) {
   Memory[Data.size()] = 0; // Null terminate string.
 }
 
+namespace {
 struct NamedBufferAlloc {
   StringRef Name;
   NamedBufferAlloc(StringRef Name) : Name(Name) {}
 };
+}
 
 void *operator new(size_t N, const NamedBufferAlloc &Alloc) {
   char *Mem = static_cast<char *>(operator new(N + Alloc.Name.size() + 1));