Hi, while preparing my SDK workshop for RMLL I had issues building those, I've some proposed fixed there:
http://git.netsurf-browser.org/toolchains.git/log/?h=mmu_man/m68k-amiga-fix-001 (MPC download URL changed) http://git.netsurf-browser.org/toolchains.git/log/?h=mmu_man/riscos-fix-001 (some errors in the zipinfo tgz target) François.