diff --git a/Lib/distutils/ccompiler.py b/Lib/distutils/ccompiler.py
index 87d6e27..aa92a9f 100644
--- a/Lib/distutils/ccompiler.py
+++ b/Lib/distutils/ccompiler.py
@@ -1063,7 +1063,6 @@
     # OS name mappings
     ('posix', 'unix'),
     ('nt', 'msvc'),
-    ('mac', 'mwerks'),
 
     )
 
@@ -1103,8 +1102,6 @@
                                "Mingw32 port of GNU C Compiler for Win32"),
                    'bcpp':    ('bcppcompiler', 'BCPPCompiler',
                                "Borland C++ Compiler"),
-                   'mwerks':  ('mwerkscompiler', 'MWerksCompiler',
-                               "MetroWerks CodeWarrior"),
                    'emx':     ('emxccompiler', 'EMXCCompiler',
                                "EMX port of GNU C Compiler for OS/2"),
                  }
diff --git a/Lib/distutils/mwerkscompiler.py b/Lib/distutils/mwerkscompiler.py
deleted file mode 100644
index 343c6ce..0000000
--- a/Lib/distutils/mwerkscompiler.py
+++ /dev/null
@@ -1,248 +0,0 @@
-"""distutils.mwerkscompiler
-
-Contains MWerksCompiler, an implementation of the abstract CCompiler class
-for MetroWerks CodeWarrior on the Macintosh. Needs work to support CW on
-Windows."""
-
-# This module should be kept compatible with Python 2.1.
-
-__revision__ = "$Id$"
-
-import sys, os, string
-from types import *
-from distutils.errors import \
-     DistutilsExecError, DistutilsPlatformError, \
-     CompileError, LibError, LinkError
-from distutils.ccompiler import \
-     CCompiler, gen_preprocess_options, gen_lib_options
-import distutils.util
-import distutils.dir_util
-from distutils import log
-
-class MWerksCompiler (CCompiler) :
-    """Concrete class that implements an interface to MetroWerks CodeWarrior,
-       as defined by the CCompiler abstract class."""
-
-    compiler_type = 'mwerks'
-
-    # Just set this so CCompiler's constructor doesn't barf.  We currently
-    # don't use the 'set_executables()' bureaucracy provided by CCompiler,
-    # as it really isn't necessary for this sort of single-compiler class.
-    # Would be nice to have a consistent interface with UnixCCompiler,
-    # though, so it's worth thinking about.
-    executables = {}
-
-    # Private class data (need to distinguish C from C++ source for compiler)
-    _c_extensions = ['.c']
-    _cpp_extensions = ['.cc', '.cpp', '.cxx']
-    _rc_extensions = ['.r']
-    _exp_extension = '.exp'
-
-    # Needed for the filename generation methods provided by the
-    # base class, CCompiler.
-    src_extensions = (_c_extensions + _cpp_extensions +
-                      _rc_extensions)
-    res_extension = '.rsrc'
-    obj_extension = '.obj' # Not used, really
-    static_lib_extension = '.lib'
-    shared_lib_extension = '.slb'
-    static_lib_format = shared_lib_format = '%s%s'
-    exe_extension = ''
-
-
-    def __init__ (self,
-                  verbose=0,
-                  dry_run=0,
-                  force=0):
-
-        CCompiler.__init__ (self, verbose, dry_run, force)
-
-
-    def compile (self,
-                 sources,
-                 output_dir=None,
-                 macros=None,
-                 include_dirs=None,
-                 debug=0,
-                 extra_preargs=None,
-                 extra_postargs=None,
-                 depends=None):
-        (output_dir, macros, include_dirs) = \
-           self._fix_compile_args (output_dir, macros, include_dirs)
-        self.__sources = sources
-        self.__macros = macros
-        self.__include_dirs = include_dirs
-        # Don't need extra_preargs and extra_postargs for CW
-        return []
-
-    def link (self,
-              target_desc,
-              objects,
-              output_filename,
-              output_dir=None,
-              libraries=None,
-              library_dirs=None,
-              runtime_library_dirs=None,
-              export_symbols=None,
-              debug=0,
-              extra_preargs=None,
-              extra_postargs=None,
-              build_temp=None,
-              target_lang=None):
-        # First fixup.
-        (objects, output_dir) = self._fix_object_args (objects, output_dir)
-        (libraries, library_dirs, runtime_library_dirs) = \
-            self._fix_lib_args (libraries, library_dirs, runtime_library_dirs)
-
-        # First examine a couple of options for things that aren't implemented yet
-        if not target_desc in (self.SHARED_LIBRARY, self.SHARED_OBJECT):
-            raise DistutilsPlatformError, 'Can only make SHARED_LIBRARY or SHARED_OBJECT targets on the Mac'
-        if runtime_library_dirs:
-            raise DistutilsPlatformError, 'Runtime library dirs not implemented yet'
-        if extra_preargs or extra_postargs:
-            raise DistutilsPlatformError, 'Runtime library dirs not implemented yet'
-        if len(export_symbols) != 1:
-            raise DistutilsPlatformError, 'Need exactly one export symbol'
-        # Next there are various things for which we need absolute pathnames.
-        # This is because we (usually) create the project in a subdirectory of
-        # where we are now, and keeping the paths relative is too much work right
-        # now.
-        sources = map(self._filename_to_abs, self.__sources)
-        include_dirs = map(self._filename_to_abs, self.__include_dirs)
-        if objects:
-            objects = map(self._filename_to_abs, objects)
-        else:
-            objects = []
-        if build_temp:
-            build_temp = self._filename_to_abs(build_temp)
-        else:
-            build_temp = os.curdir()
-        if output_dir:
-            output_filename = os.path.join(output_dir, output_filename)
-        # The output filename needs special handling: splitting it into dir and
-        # filename part. Actually I'm not sure this is really needed, but it
-        # can't hurt.
-        output_filename = self._filename_to_abs(output_filename)
-        output_dir, output_filename = os.path.split(output_filename)
-        # Now we need the short names of a couple of things for putting them
-        # into the project.
-        if output_filename[-8:] == '.ppc.slb':
-            basename = output_filename[:-8]
-        elif output_filename[-11:] == '.carbon.slb':
-            basename = output_filename[:-11]
-        else:
-            basename = os.path.strip(output_filename)[0]
-        projectname = basename + '.mcp'
-        targetname = basename
-        xmlname = basename + '.xml'
-        exportname = basename + '.mcp.exp'
-        prefixname = 'mwerks_%s_config.h'%basename
-        # Create the directories we need
-        distutils.dir_util.mkpath(build_temp, dry_run=self.dry_run)
-        distutils.dir_util.mkpath(output_dir, dry_run=self.dry_run)
-        # And on to filling in the parameters for the project builder
-        settings = {}
-        settings['mac_exportname'] = exportname
-        settings['mac_outputdir'] = output_dir
-        settings['mac_dllname'] = output_filename
-        settings['mac_targetname'] = targetname
-        settings['sysprefix'] = sys.prefix
-        settings['mac_sysprefixtype'] = 'Absolute'
-        sourcefilenames = []
-        sourcefiledirs = []
-        for filename in sources + objects:
-            dirname, filename = os.path.split(filename)
-            sourcefilenames.append(filename)
-            if not dirname in sourcefiledirs:
-                sourcefiledirs.append(dirname)
-        settings['sources'] = sourcefilenames
-        settings['libraries'] = libraries
-        settings['extrasearchdirs'] = sourcefiledirs + include_dirs + library_dirs
-        if self.dry_run:
-            print 'CALLING LINKER IN', os.getcwd()
-            for key, value in settings.items():
-                print '%20.20s %s'%(key, value)
-            return
-        # Build the export file
-        exportfilename = os.path.join(build_temp, exportname)
-        log.debug("\tCreate export file %s", exportfilename)
-        fp = open(exportfilename, 'w')
-        fp.write('%s\n'%export_symbols[0])
-        fp.close()
-        # Generate the prefix file, if needed, and put it in the settings
-        if self.__macros:
-            prefixfilename = os.path.join(os.getcwd(), os.path.join(build_temp, prefixname))
-            fp = open(prefixfilename, 'w')
-            fp.write('#include "mwerks_shcarbon_config.h"\n')
-            for name, value in self.__macros:
-                if value is None:
-                    fp.write('#define %s\n'%name)
-                else:
-                    fp.write('#define %s %s\n'%(name, value))
-            fp.close()
-            settings['prefixname'] = prefixname
-
-        # Build the XML file. We need the full pathname (only lateron, really)
-        # because we pass this pathname to CodeWarrior in an AppleEvent, and CW
-        # doesn't have a clue about our working directory.
-        xmlfilename = os.path.join(os.getcwd(), os.path.join(build_temp, xmlname))
-        log.debug("\tCreate XML file %s", xmlfilename)
-        import mkcwproject
-        xmlbuilder = mkcwproject.cwxmlgen.ProjectBuilder(settings)
-        xmlbuilder.generate()
-        xmldata = settings['tmp_projectxmldata']
-        fp = open(xmlfilename, 'w')
-        fp.write(xmldata)
-        fp.close()
-        # Generate the project. Again a full pathname.
-        projectfilename = os.path.join(os.getcwd(), os.path.join(build_temp, projectname))
-        log.debug('\tCreate project file %s', projectfilename)
-        mkcwproject.makeproject(xmlfilename, projectfilename)
-        # And build it
-        log.debug('\tBuild project')
-        mkcwproject.buildproject(projectfilename)
-
-    def _filename_to_abs(self, filename):
-        # Some filenames seem to be unix-like. Convert to Mac names.
-##        if '/' in filename and ':' in filename:
-##           raise DistutilsPlatformError, 'Filename may be Unix or Mac style: %s'%filename
-##        if '/' in filename:
-##           filename = macurl2path(filename)
-        filename = distutils.util.convert_path(filename)
-        if not os.path.isabs(filename):
-            curdir = os.getcwd()
-            filename = os.path.join(curdir, filename)
-        # Finally remove .. components
-        components = string.split(filename, ':')
-        for i in range(1, len(components)):
-            if components[i] == '..':
-                components[i] = ''
-        return string.join(components, ':')
-
-    def library_dir_option (self, dir):
-        """Return the compiler option to add 'dir' to the list of
-        directories searched for libraries.
-        """
-        return # XXXX Not correct...
-
-    def runtime_library_dir_option (self, dir):
-        """Return the compiler option to add 'dir' to the list of
-        directories searched for runtime libraries.
-        """
-        # Nothing needed or Mwerks/Mac.
-        return
-
-    def library_option (self, lib):
-        """Return the compiler option to add 'dir' to the list of libraries
-        linked into the shared library or executable.
-        """
-        return
-
-    def find_library_file (self, dirs, lib, debug=0):
-        """Search the specified list of directories for a static or shared
-        library file 'lib' and return the full path to that file.  If
-        'debug' true, look for a debugging version (if that makes sense on
-        the current platform).  Return None if 'lib' wasn't found in any of
-        the specified directories.
-        """
-        return 0
diff --git a/Misc/NEWS b/Misc/NEWS
index 4fc5d5e..2b4ea7b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -145,6 +145,8 @@
 Library
 -------
 
+- Issue #4863: distutils.mwerkscompiler has been removed.
+
 - Fix and properly document the multiprocessing module's logging
   support, expose the internal levels and provide proper usage
   examples.