logging: support building with gcc-4.9

[folly.git] / folly / Portability.h

diff --git a/folly/Portability.h b/folly/Portability.h
index 49d48f071f8022628c8ebaa232b91c95371629b6..7063e07237b3115d850206966052b625326deb95 100644 (file)
--- a/folly/Portability.h
+++ b/folly/Portability.h
@@ -85,7 +85,6 @@ constexpr bool kHasUnalignedAccess = false;
 #define FOLLY_NODISCARD
 #endif
 #endif
-#define FOLLY_WARN_UNUSED_RESULT FOLLY_NODISCARD
 
 // target
 #ifdef _MSC_VER
@@ -353,7 +352,9 @@ constexpr auto kIsLinux = false;
 
 #if defined(_WIN32)
 constexpr auto kIsWindows = true;
+constexpr auto kMscVer = _MSC_VER;
 #else
 constexpr auto kIsWindows = false;
+constexpr auto kMscVer = 0;
 #endif
 }