When building SeaBIOS from 1.7.1 coreboot builds correctly. But when I try master it fails this way: make: *** No rule to make target `out/misc.o', needed by `/home/gnutoo/x86/coreboot/build/seabios/out/ccode32flat.o'. Stop.
I've tried a lot of combinaisons in the Makefile.inc that is in payloads/external/SeaBIOS but I didn't succeed at fixing it. I also lack the time to fix it right now, and that issue has been there for a long time...
However running the following command in coreboot's topdir make it succeed: make -C build/seabios
Then a normal make finishes to compiles coreboot.