findNativeGccDirPosix

fn findNativeGccDirPosix(self: *LibCInstallation, gpa: Allocator, io: Io, args: FindNativeOptions) FindError!void {
    self.gcc_dir = try ccPrintFileName(gpa, io, .{
        .environ_map = args.environ_map,
        .search_basename = "crtbeginS.o",
        .want_dirname = .only_dir,
        .verbose = args.verbose,
    });
}