binutils: Include libiberty in the build

[SimonKagstrom]

Verification

• This issue's title and/or description do not reference a single formula e.g. brew install wget. If they do, open an issue at https://github.com/Homebrew/homebrew-core/issues/new/choose instead.

Provide a detailed description of the proposed feature

I'm developing an application that links to libbfd. However, while it compiles, I get a lot of linker errors since libiberty isn't included in the MacOS build:

[...]
 "_sframe_decoder_get_abi_arch", referenced from:
      __bfd_elf_merge_section_sframe in libbfd.a[119](elf-sframe.o)
      __bfd_elf_merge_section_sframe in libbfd.a[119](elf-sframe.o)

libiberty looks to be includable by the --enable-install-libiberty argument to the build commands.

What is the motivation for the feature?

To be able to create applications that link with libiberty.

How will the feature be relevant to at least 90% of Homebrew users?

It will allow more applications to be available through homebrew :-)

What alternatives to the feature have been considered?

Self-building binutils. I've been through that hell before, and crashed and burned, and I now swore to never use self-builds of it again. I'll from now on use the ones from the distribution, but would prefer not to be tied to Linux-only.

[SMillerDev]

I believe all the options that work on macOS are enabled, but you can make a pull request to adjust the formula and we'll happily review it.

[SMillerDev]

Closing this since feature requests should be in the form of a pull request