export PATH := $(dir $(CFG_RUSTC)):$(PATH)
ifeq ($(CFG_RELEASE_CHANNEL),stable)
-CFG_RELEASE=$(CFG_RELEASE_NUM)
CFG_PACKAGE_VERS=$(CFG_RELEASE_NUM)
else ifeq ($(CFG_RELEASE_CHANNEL),beta)
-CFG_RELEASE=$(CFG_RELEASE_NUM)-beta$(CFG_PRERELEASE_VERSION)
CFG_PACKAGE_VERS=beta
else ifeq ($(CFG_RELEASE_CHANNEL),nightly)
-CFG_RELEASE=$(CFG_RELEASE_NUM)-nightly
CFG_PACKAGE_VERS=nightly
else ifeq ($(CFG_RELEASE_CHANNEL),dev)
-CFG_RELEASE=$(CFG_RELEASE_NUM)-dev
CFG_PACKAGE_VERS=$(CFG_RELEASE_NUM)-dev
endif