CCACHE = "${@bb.utils.which(d.getVar('PATH', True), 'ccache') and 'ccache '}" export CCACHE_DIR ?= "${TMPDIR}/ccache/${MULTIMACH_HOST_SYS}/${PN}" CCACHE_DISABLE[unexport] = "1" do_configure[dirs] =+ "${CCACHE_DIR}" do_kernel_configme[dirs] =+ "${CCACHE_DIR}"