* util/mkisofs/mkisofs.c (use_embedded_boot, boot_image_embed): New
variables.
(ld_options, main): Recognize `--embedded-boot'.
* util/mkisofs/mkisofs.h (use_embedded_boot, boot_image_embed): New
declarations.
* util/mkisofs/write.c (PADBLOCK_SIZE): New variable.
(padblock_size): Use `PADBLOCK_SIZE' instead of hardcoding 16.
(padblock_write): Likewise. Rewrite to support embedded boot image.
* util/grub-mkrescue.in: When building i386-pc images, embed core.img
for BIOS-based disk boot instead of only ElTorito.
0ae5692966