When no target (and neither custom target) was specified, it defaulted to rv32imc which overrode any isa and mabi supplied as arguments. This prevented setting any custom isa and mabi from the command line. New behavior is to only override these if they aren't set by the user explicitly (values specified with --isa and --mabi options override --target).
When no target (and neither custom target) was specified, it defaulted to rv32imc which overrode any isa and mabi supplied as arguments. This prevented setting any custom isa and mabi from the command line. New behavior is to only override these if they aren't set by the user explicitly (values specified with --isa and --mabi options override --target).