diff options
Diffstat (limited to 'LUFA/Build/lufa.sources.in')
| -rw-r--r-- | LUFA/Build/lufa.sources.in | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/LUFA/Build/lufa.sources.in b/LUFA/Build/lufa.sources.in index 6d28056cc..6ca480bce 100644 --- a/LUFA/Build/lufa.sources.in +++ b/LUFA/Build/lufa.sources.in @@ -35,13 +35,14 @@ LUFA_BUILD_OPTIONAL_VARS += # # ----------------------------------------------------------------------------- -# Sanity-check values of mandatory user-supplied variables -ARCH ?= $(error Makefile ARCH value not set) -LUFA_PATH ?= $(error Makefile LUFA_PATH value not set) +ERROR_IF_UNSET = $(if $(filter undefined, $(origin $(strip $(1)))), $(error Makefile $(strip $(1)) value not set)) +ERROR_IF_EMPTY = $(if $(strip $($(strip $(1)))), , $(error Makefile $(strip $(1)) option cannot be blank)) +ERROR_IF_NONBOOL = $(if $(filter Y N, $($(strip $(1)))), , $(error Makefile $(strip $(1)) option must be Y or N)) -ifeq ($(ARCH),) - $(error Makefile ARCH option cannot be blank) -endif +# Sanity check user supplied values +$(foreach MANDATORY_VAR, $(LUFA_BUILD_MANDATORY_VARS), $(call ERROR_IF_UNSET, $(MANDATORY_VAR))) +$(call ERROR_IF_EMPTY, LUFA_PATH) +$(call ERROR_IF_EMPTY, ARCH) # Allow LUFA_ROOT_PATH to be overridden elsewhere to support legacy LUFA makefiles LUFA_ROOT_PATH ?= $(patsubst %/,%,$(LUFA_PATH)) |