Bug#1013341: /usr/bin/ld.bfd: warning: /usr/lib/crt0-efi-x86_64.o: missing .note.GNU-stack section implies executable stack

[Jan Kiszka]

Note that there is also the upstream ticket
https://sourceforge.net/p/gnu-efi/bugs/28/.

I'm not sure why EFI stacks would need to be executable. The better
solution should be resolving that upstream and meanwhile carrying a
gnu-efi patch. This does not only affect systemd-boot.