newSection(new RepositoriesBuilder()) {
            BuilderSupport.applyConfiguration(spec, it)
        }
        this
    }

    BuildFileBuilder configurations(@DelegatesTo(value = ConfigurationsBuilder, strategy = Closure.DELEGATE_FIRST) Closure<?> spec) {
        newSection(new ConfigurationsBuilder(configurationNames)) {

import java.util.function.Supplier

abstract class MultiSectionHandler<T> implements SectionBuilder {
    final List<SectionBuilder> sections = []

    public <B extends SectionBuilder> B newSection(@DelegatesTo.Target B section, @DelegatesTo(strategy = Closure.DELEGATE_FIRST) Closure<?> spec) {
        sections << section
        BuilderSupport.applyConfiguration(spec, section)
        section
    }

	if int(i) >= len(l.symSects) {
		l.symSects = append(l.symSects, make([]uint16, l.NSym()-len(l.symSects))...)
	}
	l.symSects[i] = sect.Index
}

// NewSection creates a new (output) section.
func (l *Loader) NewSection() *sym.Section {
	sect := new(sym.Section)
	idx := len(l.sects)
	if idx != int(uint16(idx)) {
		panic("too many sections created")
	}
	sect.Index = uint16(idx)

	ctxt.Shlibs = append(ctxt.Shlibs, Shlib{Path: libpath, Hash: hash, Deps: deps, File: f})
}

func addsection(ldr *loader.Loader, arch *sys.Arch, seg *sym.Segment, name string, rwx int) *sym.Section {
	sect := ldr.NewSection()
	sect.Rwx = uint8(rwx)
	sect.Name = name
	sect.Seg = seg
	sect.Align = int32(arch.PtrSize) // everything is at least pointer-aligned
	seg.Sections = append(seg.Sections, sect)
	return sect
}