gar

How do I tell `gar` or `ar` to output `elf32-i386` output?

When I look at the help output from gar -h, it tells me: [...] gar: supported targets: elf64-x86-64 elf32-i386 a.out-i386-linux [...] How can I instruct gar to create an elf32-i386 output? ...