diff options
Diffstat (limited to 'make/util.mk')
| -rw-r--r-- | make/util.mk | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/make/util.mk b/make/util.mk index 57ff4dae..0687755f 100644 --- a/make/util.mk +++ b/make/util.mk @@ -88,6 +88,17 @@ AssertEqual = \ $(if $(call streq,$($(1)),$(2)),,\ $(error Assertion failed: $(1): $(value $(1)) - $($(1)) != $(2))) +# Function: CheckCommandLineOverrides list +# +# Check that all command line variables are in the given list. This routine is +# useful for validating that users aren't trying to override something which +# will not work. +CheckCommandLineOverrides = \ + $(foreach arg,$(MAKEOVERRIDES),\ + $(call Set,varname,$(firstword $(subst =, ,$(arg)))) \ + $(if $(call contains,$(1),$(varname)),,\ + $(error "Invalid command line override: $(1) $(varname) (not supported)"))) + ### # Clean up make behavior |