_CS_DARWIN_USER macros available on darwin>=9. Thanks, Dave Odell!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201255 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/Path.cpp b/lib/Support/Path.cpp
index 1872af55ed6b9b40a8202c810707fdef50f2f691..1e59c7adb5b80654dbd1bd417925b7c8b8599c7b 100644 (file)
--- a/lib/Support/Path.cpp
+++ b/lib/Support/Path.cpp
@@ -508,8 +508,9 @@ bool is_separator(char value) {
 void system_temp_directory(bool erasedOnReboot, SmallVectorImpl<char> &result) {
   result.clear();
 
-#ifdef __APPLE__
+#if defined(_CS_DARWIN_USER_TEMP_DIR) && defined(_CS_DARWIN_USER_CACHE_DIR)
   // On Darwin, use DARWIN_USER_TEMP_DIR or DARWIN_USER_CACHE_DIR.
+  // macros defined in <unistd.h> on darwin >= 9
   int ConfName = erasedOnReboot? _CS_DARWIN_USER_TEMP_DIR
                                : _CS_DARWIN_USER_CACHE_DIR;
   size_t ConfLen = confstr(ConfName, 0, 0);