Fix compilation on Mac OS X 10.10 and 10.11

Change-Id: I9058e2723f493034d099466e896d19021968d8d4
diff --git a/core/combo/mac_version.mk b/core/combo/mac_version.mk
index 6defba7..90cecea 100644
--- a/core/combo/mac_version.mk
+++ b/core/combo/mac_version.mk
@@ -9,7 +9,7 @@
 
 build_mac_version := $(shell sw_vers -productVersion)
 
-mac_sdk_versions_supported :=  10.6 10.7 10.8 10.9
+mac_sdk_versions_supported :=  10.6 10.7 10.8 10.9 10.10 10.11
 ifneq ($(strip $(MAC_SDK_VERSION)),)
 mac_sdk_version := $(MAC_SDK_VERSION)
 ifeq ($(filter $(mac_sdk_version),$(mac_sdk_versions_supported)),)