[U-Boot] Parallel make issue with helloworld.efi

Hi,

Every now and then I see parallel builds failing, e.g. with Linksprite_pcDuino3_Nano_defconfig:

CC lib/efi_loader/efi_bootmgr.o CC lib/efi_loader/efi_disk.o CC lib/efi_loader/efi_net.o make[2]: *** No rule to make target 'lib/efi_loader/helloworld.efi', needed by '__build'. Stop. make[2]: *** Waiting for unfinished jobs.... CC lib/efi_loader/efi_smbios.o make[1]: *** [scripts/Makefile.build:425: lib/efi_loader] Error 2 make: *** [Makefile:1279: lib] Error 2

This has been going for a while now (since ~2017.03 or so). Anybody have ideas on how to express the dependency properly?

Thanks! - Tuomas