coreboot

bash /src/util/crossgcc/buildgcc --fetch
getopt: unrecognized option: -
getopt: unrecognized option: f
getopt: unrecognized option: e
Usage: /src/util/crossgcc/buildgcc [-V] [-c] [-p <platform>] [-d <target directory>] [-D <dest dir>] [-C] [-G] [-S]
       /src/util/crossgcc/buildgcc [-V|--version]
       /src/util/crossgcc/buildgcc [-h|--help]
Options:
    [-W|--print-version           Print machine readable version
    [-V|--version]                print version number and exit
    [-h|--help]                   print this help and exit
    [-c|--clean]                  remove temporary files before build
    [-t|--savetemps]              don't remove temporary files after build
    [-y|--ccache]                 Use ccache when building cross compiler
    [-n|--nocolor]                don't print color codes in output
    [-u|--urls]                   print the urls for all packages
    [-j|--jobs <num>]             run <num> jobs in parallel in make
    [-s]--supported <tool>        print supported version of a tool
    [-d|--directory <target dir>] target directory to install cross compiler to
        (defaults to /src/util/crossgcc/xgcc)
    [-D|--destdir <dest dir>]     destination directory to install cross compiler to
                                  (for RPM builds, default unset)
    [-f|--fetch]                  Download tarballs, but don't build anything
    [-P|--package <package>]      Build a specific package: GCC, CLANG, IASL
                                  (defaults to GCC)
GCC specific options:
    [-b|--bootstrap]              bootstrap the host compiler before building
                                  the cross compiler
    [-p|--platform <platform>]    target platform to build cross compiler for
                                  (defaults to i386-elf)
    [-l|--languages <languages>]  comma separated list of target languages
                                  (defaults to c)
Platforms for GCC:
    x86_64 i386-elf i386-mingw32 riscv-elf arm aarch64
    powerpc64le-linux-gnu nds32le-elf

The code appears to still be there in main.
coreboot/util/crossgcc/buildgcc
618:    printf "    [-f|--fetch]                  Download tarballs, but don't build anything\n"
1016:           -f|--fetch)             shift; FETCH_ONLY=1;;

This might be because my build system is Alpine which appears to be using busybox getopt.