# Find the local dir of the make file
GET_LOCAL_DIR    = $(patsubst %/,%,$(dir $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))))

# makes sure the target dir exists
MKDIR = if [ ! -d $(dir $@) ]; then mkdir -p $(dir $@); fi

# test if two files are different, replacing the first
# with the second if so
# args: $1 - temporary file to test
#       $2 - file to replace
define TESTANDREPLACEFILE
	if [ -f "$2" ]; then \
		if cmp "$1" "$2"; then \
			rm -f $1; \
		else \
			mv $1 $2; \
		fi \
	else \
		mv $1 $2; \
	fi
endef