ifeq ($(PACKAGE_TOP),)
ifneq ($(EPICS_PACKAGE_TOP),)
PACKAGE_TOP=$(EPICS_PACKAGE_TOP)
else
$(error PACKAGE_TOP or EPICS_PACKAGE_TOP must be provided in the environment or on the command line)
endif
endif

CPSW_FRAMEWORK_VERSION=R4.5.2

CPSW_DIR=$(PACKAGE_TOP)/cpsw/framework/$(CPSW_FRAMEWORK_VERSION)/src