Rules.mk: Specify -fno-builtin to avoid nasty surprises. (In particular, -O3 was causing memset to call itself!) Also recommend latest gcc-7.10/binutils-2.28 cross-env and mention space measurements on -Os vs -Ofast.
Rules.mk: Specify -fno-builtin to avoid nasty surprises.
(In particular, -O3 was causing memset to call itself!)
Also recommend latest gcc-7.10/binutils-2.28 cross-env and
mention space measurements on -Os vs -Ofast.

keirf/Amiga-Stuff,keirf/Amiga-Stuff