Put Darwin-specific code inside an __APPLE__ ifdef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137137 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/Unix/Host.inc b/lib/Support/Unix/Host.inc
index 0f3e31a41b92acd3b5f0e5496fbfad07c532b21d..744fb9e699699a53b67aebb4a0b0c467ce1b97e7 100644 (file)
--- a/lib/Support/Unix/Host.inc
+++ b/lib/Support/Unix/Host.inc
@@ -29,10 +29,12 @@ using namespace llvm;
 static std::string getOSVersion() {
   struct utsname info;
 
+#ifdef __APPLE__
   // Recognize UNAME_RELEASE environment variable to match Darwin uname.
   const char *UnameOverride = ::getenv("UNAME_RELEASE");
   if (UnameOverride && UnameOverride[0] != '\0')
     return UnameOverride;
+#endif // __APPLE__
 
   if (uname(&info))
     return "";