In file included from /home/trini/u-boot/u-boot/tools/mkeficapsule.c:24:
/home/trini/u-boot/u-boot/tools/eficapsule.h:93:18: warning: field 'hdr' with variable sized type 'WIN_CERTIFICATE' (aka 'struct _WIN_CERTIFICATE') not at the end of a struct or class is a GNU extension [-Wgnu-variable-sized-type-not-at-end]
        WIN_CERTIFICATE hdr;
                        ^
/home/trini/u-boot/u-boot/tools/mkeficapsule.c:88:43: warning: field 'auth' with variable sized type 'struct efi_firmware_image_authentication' not at the end of a struct or class is a GNU extension [-Wgnu-variable-sized-type-not-at-end]
        struct efi_firmware_image_authentication auth;