$(call debian_transform_files,%): $(call debian_check_files,%)
mkdir -p $(@D)
+ chmod +x debian/transform_$(notdir $(call undebian_transform_files,$@))
$(if $(DEB_TRANSFORM_SCRIPT_$(call undebian_transform_files,$@)), \
$(DEB_TRANSFORM_SCRIPT_$(call undebian_transform_files,$@)), \
debian/transform_$(notdir $(call undebian_transform_files,$@))) < $< > $@