
We want the apr requirement to act as a build-time requirement in case it is satisfied (that is, the CLT is installed), as the resulting binaries will link to the system libapr which is always present. When it is *not* satisfied by the CLT, and we need to install the formula, we have to treat it as a runtime dependency since the resulting binaries will link to it. Fixes Homebrew/homebrew#36301. Fixes Homebrew/homebrew#36438. Closes Homebrew/homebrew#36443.