Add HOST_CROSS_OS
Instead of using recursive make to change the HOST_OS when building the
windows SDK under linux, add the concept of cross-building to another
host os.
Bug: 23566667
Change-Id: I6dc525b601b6251d458d197c30bf4660d7485502
diff --git a/core/host_shared_library.mk b/core/host_shared_library.mk
index e840780..920281c 100644
--- a/core/host_shared_library.mk
+++ b/core/host_shared_library.mk
@@ -1,4 +1,5 @@
my_prefix := HOST_
+LOCAL_HOST_PREFIX :=
include $(BUILD_SYSTEM)/multilib.mk
ifndef LOCAL_MODULE_HOST_ARCH
@@ -34,6 +35,26 @@
LOCAL_2ND_ARCH_VAR_PREFIX :=
endif # HOST_2ND_ARCH
+ifdef HOST_CROSS_OS
+my_prefix := HOST_CROSS_
+LOCAL_HOST_PREFIX := $(my_prefix)
+include $(BUILD_SYSTEM)/module_arch_supported.mk
+ifeq ($(my_module_arch_supported),true)
+# Build for Windows
+OVERRIDE_BUILT_MODULE_PATH :=
+LOCAL_BUILT_MODULE :=
+LOCAL_MODULE_SUFFIX :=
+# We don't want makefiles using the cross-compiled host tool
+saved_LOCAL_INSTALLED_MODULE := $(LOCAL_INSTALLED_MODULE)
+LOCAL_INSTALLED_MODULE :=
+LOCAL_INTERMEDIATE_TARGETS :=
+
+include $(BUILD_SYSTEM)/host_shared_library_internal.mk
+LOCAL_INSTALLED_MODULE := $(saved_LOCAL_INSTALLED_MODULE)
+endif
+LOCAL_HOST_PREFIX :=
+endif
+
my_module_arch_supported :=
###########################################################