Dynamic library check not supported on this platform.

Error message

Dynamic library check not supported on this platform.

What it means

Error "Dynamic library check not supported on this platform." thrown in ruby/rubygems.

Source

Thrown at lib/bundler/cli/doctor/diagnose.rb:50

    def dylibs_ldd(path)
      output = `/usr/bin/ldd #{path.shellescape}`.chomp
      output.split("\n").filter_map do |l|
        match = l.match(LDD_REGEX)
        next if match.nil?
        match.captures[0]
      end
    end

    def dylibs(path)
      case RbConfig::CONFIG["host_os"]
      when /darwin/
        return [] unless otool_available?
        dylibs_darwin(path)
      when /(linux|solaris|bsd)/
        return [] unless ldd_available?
        dylibs_ldd(path)
      else # Windows, etc.
        Bundler.ui.warn("Dynamic library check not supported on this platform.")
        []
      end
    end

    def bundles_for_gem(spec)
      Dir.glob("#{spec.full_gem_path}/**/*.bundle")
    end

    def lookup_with_fiddle(path)
      require "fiddle"
      Fiddle.dlopen(path)
      false
    rescue Fiddle::DLError
      true
    end

    def check!
      require_relative "../check"

View on GitHub (pinned to 86cbb817a3)

Solutions

This check is unsupported on your platform; ignore it or run the diagnostic on a supported platform

When it happens

Trigger: Thrown at lib/bundler/cli/doctor/diagnose.rb:50 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of ruby/rubygems@86cbb817a3 (2026-08-23). Data as JSON: /api/errors/d090a33c7fd20a3a. Report an issue: GitHub.