define Host/Exports/Default
$(1) : export ACLOCAL_INCLUDE=$$(foreach p,$$(wildcard $$(STAGING_DIR_HOST)/share/aclocal $$(STAGING_DIR_HOST)/share/aclocal-* $(if $(IS_PACKAGE_BUILD),$$(STAGING_DIR)/host/share/aclocal $$(STAGING_DIR)/host/share/aclocal-*)),-I $$(p))
$(1) : export STAGING_PREFIX=$$(HOST_BUILD_PREFIX)
define Host/Exports/Default
$(1) : export ACLOCAL_INCLUDE=$$(foreach p,$$(wildcard $$(STAGING_DIR_HOST)/share/aclocal $$(STAGING_DIR_HOST)/share/aclocal-* $(if $(IS_PACKAGE_BUILD),$$(STAGING_DIR)/host/share/aclocal $$(STAGING_DIR)/host/share/aclocal-*)),-I $$(p))
$(1) : export STAGING_PREFIX=$$(HOST_BUILD_PREFIX)