This is slightly different from dlltool but I think it should be compatible. The transition is done by first replacing dlltool with its bugs, and fixing them in separate changes.
I based the ARM / AARCH64 implementation on the existing code around, but I have no idea if it is correct, and dlltool also doesn't include any delay load implementation for ARM.
-- v4: winebuild: Put the delay import descriptor in data section. winebuild: Fix import hint value for symbols imported by name. winebuild: Implement delay import lib generation without dlltool. winebuild: Enable unwind tables by default in PE files. winebuild: Implement import lib generation without dlltool. winebuild: Introduce a new --without-dlltool winebuild flag.