diff --git a/CleanSpec.mk b/CleanSpec.mk
index d103aa6..ea28ec0 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -109,6 +109,9 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libbcinfo_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
 
+# Now we switched to build against Mac OS X SDK 10.6
+$(call add-clean-step, rm -rf $(OUT_DIR)/host/darwin-x86/obj)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************
diff --git a/core/combo/HOST_darwin-x86.mk b/core/combo/HOST_darwin-x86.mk
index aeb91c2..72117a2 100644
--- a/core/combo/HOST_darwin-x86.mk
+++ b/core/combo/HOST_darwin-x86.mk
@@ -23,21 +23,17 @@
 HOST_GLOBAL_CFLAGS += -m32
 HOST_GLOBAL_LDFLAGS += -m32
 
-# Use the Mac OSX SDK 10.5 if the build host is 10.6
-build_mac_version := $(shell sw_vers -productVersion)
-ifneq ($(filter 10.6.%, $(build_mac_version)),)
-sdk_105_root := /Developer/SDKs/MacOSX10.5.sdk
-ifeq ($(wildcard $(sdk_105_root)),)
+mac_sdk_version := 10.6
+mac_sdk_root := /Developer/SDKs/MacOSX$(mac_sdk_version).sdk
+ifeq ($(wildcard $(mac_sdk_root)),)
 $(warning *****************************************************)
-$(warning * You are building on Mac OSX 10.6.)
-$(warning * Can not find SDK 10.5 at $(sdk_105_root))
+$(warning * Can not find SDK $(mac_sdk_version) at $(mac_sdk_root))
 $(warning *****************************************************)
 $(error Stop.)
 endif
 
-HOST_GLOBAL_CFLAGS += -isysroot $(sdk_105_root) -mmacosx-version-min=10.5
-HOST_GLOBAL_LDFLAGS += -isysroot $(sdk_105_root) -mmacosx-version-min=10.5
-endif # build_mac_version is 10.6
+HOST_GLOBAL_CFLAGS += -isysroot $(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version)
+HOST_GLOBAL_LDFLAGS += -isysroot $(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version)
 
 HOST_GLOBAL_CFLAGS += -fPIC
 HOST_NO_UNDEFINED_LDFLAGS := -Wl,-undefined,error