error

    running build_clib
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-oDYnTF/pynacl/setup.py", line 251, in <module>
        "Programming Language :: Python :: 3.6",
      File "/usr/lib/python2.7/distutils/core.py", line 151, in setup
        dist.run_commands()
      File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands
        self.run_command(cmd)
      File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command
        cmd_obj.run()
      File "/usr/lib/python2.7/site-packages/setuptools/command/install.py", line 61, in run
        return orig.install.run(self)
      File "/usr/lib/python2.7/distutils/command/install.py", line 563, in run
        self.run_command('build')
      File "/usr/lib/python2.7/distutils/cmd.py", line 326, in run_command
        self.distribution.run_command(command)
      File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command
        cmd_obj.run()
      File "/usr/lib/python2.7/distutils/command/build.py", line 127, in run
        self.run_command(cmd_name)
      File "/usr/lib/python2.7/distutils/cmd.py", line 326, in run_command
        self.distribution.run_command(command)
      File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command
        cmd_obj.run()
      File "/tmp/pip-build-oDYnTF/pynacl/setup.py", line 159, in run
        raise Exception("ERROR: The 'make' utility is missing from PATH")
    Exception: ERROR: The 'make' utility is missing from PATH
    
    ----------------------------------------
Command "/usr/bin/python2 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-oDYnTF/pynacl/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-3Jt0Bw-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-oDYnTF/pynacl/