1 files changed, 3 insertions, 11 deletions
diff --git a/lib/profile/InstrProfilingPort.h b/lib/profile/InstrProfilingPort.h
index cd1264b0e..578935195 100644
--- a/lib/profile/InstrProfilingPort.h
+++ b/lib/profile/InstrProfilingPort.h
@@ -7,9 +7,6 @@
 |*
 \*===----------------------------------------------------------------------===*/
 
-/* This header must be included after all others so it can provide fallback
-   definitions for stuff missing in system headers. */
-
 #ifndef PROFILE_INSTRPROFILING_PORT_H_
 #define PROFILE_INSTRPROFILING_PORT_H_
 
@@ -47,6 +44,9 @@
 #define COMPILER_RT_GETHOSTNAME(Name, Len) ((void)(Name), (void)(Len), (-1))
 #else
 #define COMPILER_RT_GETHOSTNAME(Name, Len) lprofGetHostName(Name, Len)
+#ifndef _MSC_VER
+#define COMPILER_RT_HAS_UNAME 1
+#endif
 #endif
 
 #if COMPILER_RT_HAS_ATOMICS == 1
@@ -107,14 +107,6 @@
 #define PROF_NOTE(Format, ...)                                                 \
   fprintf(stderr, "LLVM Profile Note: " Format, __VA_ARGS__);
 
-#ifndef MAP_FILE
-#define MAP_FILE 0
-#endif
-
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif
-
 #if defined(__FreeBSD__)
 
 #include <inttypes.h>