1 files changed, 3 insertions, 0 deletions
diff --git a/FL/mac.H b/FL/mac.H
index 8332faba9..f4818284f 100644
--- a/FL/mac.H
+++ b/FL/mac.H
@@ -64,6 +64,9 @@ typedef class FLWindow *Window; // pointer to the FLWindow objective-c class
 #ifndef MAC_OS_X_VERSION_10_11
 #define MAC_OS_X_VERSION_10_11 101100
 #endif
+#ifndef MAC_OS_X_VERSION_10_12
+#define MAC_OS_X_VERSION_10_12 101200
+#endif
 
 #ifndef NSINTEGER_DEFINED // appears with 10.5 in NSObjCRuntime.h
 #if defined(__LP64__) && __LP64__