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/clear_vars.mk b/core/clear_vars.mk
index e2f1444..d0d4ff9 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -173,6 +173,13 @@
LOCAL_MODULE_UNSUPPORTED_TARGET_ARCH:=
LOCAL_MODULE_UNSUPPORTED_TARGET_ARCH_WARN:=
LOCAL_MODULE_HOST_ARCH:=
+LOCAL_MODULE_HOST_ARCH_WARN:=
+LOCAL_MODULE_UNSUPPORTED_HOST_ARCH:=
+LOCAL_MODULE_UNSUPPORTED_HOST_ARCH_WARN:=
+LOCAL_MODULE_HOST_CROSS_ARCH:=
+LOCAL_MODULE_HOST_CROSS_ARCH_WARN:=
+LOCAL_MODULE_UNSUPPORTED_HOST_CROSS_ARCH:=
+LOCAL_MODULE_UNSUPPORTED_HOST_CROSS_ARCH_WARN:=
LOCAL_NO_FPIE :=
LOCAL_CXX_STL := default
LOCAL_NATIVE_COVERAGE :=
@@ -268,10 +275,27 @@
LOCAL_GENERATED_SOURCES_$(HOST_OS):=
LOCAL_REQUIRED_MODULES_$(HOST_OS):=
+ifdef HOST_CROSS_OS
+LOCAL_SRC_FILES_$(HOST_CROSS_OS):=
+LOCAL_STATIC_LIBRARIES_$(HOST_CROSS_OS):=
+LOCAL_SHARED_LIBRARIES_$(HOST_CROSS_OS):=
+LOCAL_CFLAGS_$(HOST_CROSS_OS):=
+LOCAL_CPPFLAGS_$(HOST_CROSS_OS):=
+LOCAL_LDFLAGS_$(HOST_CROSS_OS):=
+LOCAL_LDLIBS_$(HOST_CROSS_OS):=
+LOCAL_ASFLAGS_$(HOST_CROSS_OS):=
+LOCAL_C_INCLUDES_$(HOST_CROSS_OS):=
+LOCAL_GENERATED_SOURCES_$(HOST_CROSS_OS):=
+LOCAL_REQUIRED_MODULES_$(HOST_CROSS_OS):=
+endif
+
LOCAL_SRC_FILES_$(HOST_OS)_$(HOST_ARCH):=
ifdef HOST_2ND_ARCH
LOCAL_SRC_FILES_$(HOST_OS)_$(HOST_2ND_ARCH):=
endif
+ifdef HOST_CROSS_OS
+LOCAL_SRC_FILES_$(HOST_CROSS_OS)_$(HOST_CROSS_ARCH):=
+endif
LOCAL_SRC_FILES_32:=
LOCAL_SRC_FILES_64:=