am c05d0000: Only turn host build on for linux

Merge commit 'c05d0000bb3e91a21c2cc7cbd85232f1afc7a8d2' into gingerbread-plus-aosp

* commit 'c05d0000bb3e91a21c2cc7cbd85232f1afc7a8d2':
  Only turn host build on for linux
diff --git a/target/product/core.mk b/target/product/core.mk
index 188d8fd..6f93876 100644
--- a/target/product/core.mk
+++ b/target/product/core.mk
@@ -76,7 +76,9 @@
 # force WITH_HOST_DALVIK on userdebug and user builds.
 # TODO: this is redundant with a similar clause in build/core/main.mk.
 ifneq (,$(filter userdebug user,$(TARGET_BUILD_VARIANT)))
+  ifeq ($(HOST_OS),linux)
     WITH_HOST_DALVIK := true
+  endif
 endif
 
 # host-only dependencies