global-incdirs-y += include ifeq ($(CFG_UNWIND),y) srcs-y += unwind_arm32.c srcs-$(CFG_ARM64_$(sm)) += unwind_arm64.c ifneq (,$(filter y,$(CFG_RV32_$(sm)) $(CFG_RV64_$(sm)))) srcs-y += unwind_riscv.c endif endif