With GNU Make 4.2.1, ifeq ($(EDK2_DSC),"") doesn't catch the case where EDK2_DSC isn't defined. So, switch to using ifndef. Signed-off-by: Rebecca Cran <rebecca@bsdio.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
With GNU Make 4.2.1, ifeq ($(EDK2_DSC),"") doesn't catch the case where EDK2_DSC isn't defined. So, switch to using ifndef. Signed-off-by: Rebecca Cran <rebecca@bsdio.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org>