diff --git a/Lib/distutils/ccompiler.py b/Lib/distutils/ccompiler.py
index c2b1f6fbe9d..7076b933946 100644
--- a/Lib/distutils/ccompiler.py
+++ b/Lib/distutils/ccompiler.py
@@ -18,58 +18,6 @@ from distutils.dep_util import newer_group
 from distutils.util import split_quoted, execute
 from distutils import log
 
-_sysconfig = __import__('sysconfig')
-
-def customize_compiler(compiler):
-    """Do any platform-specific customization of a CCompiler instance.
-
-    Mainly needed on Unix, so we can plug in the information that
-    varies across Unices and is stored in Python's Makefile.
-    """
-    if compiler.compiler_type == "unix":
-        (cc, cxx, opt, cflags, ccshared, ldshared, so_ext, ar, ar_flags) = \
-            _sysconfig.get_config_vars('CC', 'CXX', 'OPT', 'CFLAGS',
-                                       'CCSHARED', 'LDSHARED', 'SO', 'AR',
-                                       'ARFLAGS')
-
-        if 'CC' in os.environ:
-            cc = os.environ['CC']
-        if 'CXX' in os.environ:
-            cxx = os.environ['CXX']
-        if 'LDSHARED' in os.environ:
-            ldshared = os.environ['LDSHARED']
-        if 'CPP' in os.environ:
-            cpp = os.environ['CPP']
-        else:
-            cpp = cc + " -E"           # not always
-        if 'LDFLAGS' in os.environ:
-            ldshared = ldshared + ' ' + os.environ['LDFLAGS']
-        if 'CFLAGS' in os.environ:
-            cflags = opt + ' ' + os.environ['CFLAGS']
-            ldshared = ldshared + ' ' + os.environ['CFLAGS']
-        if 'CPPFLAGS' in os.environ:
-            cpp = cpp + ' ' + os.environ['CPPFLAGS']
-            cflags = cflags + ' ' + os.environ['CPPFLAGS']
-            ldshared = ldshared + ' ' + os.environ['CPPFLAGS']
-        if 'AR' in os.environ:
-            ar = os.environ['AR']
-        if 'ARFLAGS' in os.environ:
-            archiver = ar + ' ' + os.environ['ARFLAGS']
-        else:
-            archiver = ar + ' ' + ar_flags
-
-        cc_cmd = cc + ' ' + cflags
-        compiler.set_executables(
-            preprocessor=cpp,
-            compiler=cc_cmd,
-            compiler_so=cc_cmd + ' ' + ccshared,
-            compiler_cxx=cxx,
-            linker_so=ldshared,
-            linker_exe=cc,
-            archiver=archiver)
-
-        compiler.shared_lib_extension = so_ext
-
 class CCompiler:
     """Abstract base class to define the interface that must be implemented
     by real compiler classes.  Also has some utility methods used by
diff --git a/Lib/distutils/command/build_clib.py b/Lib/distutils/command/build_clib.py
index 98a1726ffa8..205587e7fc9 100644
--- a/Lib/distutils/command/build_clib.py
+++ b/Lib/distutils/command/build_clib.py
@@ -19,7 +19,7 @@ __revision__ = "$Id$"
 import os
 from distutils.core import Command
 from distutils.errors import DistutilsSetupError
-from distutils.ccompiler import customize_compiler
+from distutils.sysconfig import customize_compiler
 from distutils import log
 
 def show_compilers():
diff --git a/Lib/distutils/command/config.py b/Lib/distutils/command/config.py
index da8da595388..b084913563a 100644
--- a/Lib/distutils/command/config.py
+++ b/Lib/distutils/command/config.py
@@ -16,7 +16,7 @@ import re
 
 from distutils.core import Command
 from distutils.errors import DistutilsExecError
-from distutils.ccompiler import customize_compiler
+from distutils.sysconfig import customize_compiler
 from distutils import log
 
 LANG_EXT = {'c': '.c', 'c++': '.cxx'}
diff --git a/Lib/distutils/sysconfig.py b/Lib/distutils/sysconfig.py
index 4f9041a794a..4b193b2703c 100644
--- a/Lib/distutils/sysconfig.py
+++ b/Lib/distutils/sysconfig.py
@@ -150,9 +150,10 @@ def customize_compiler(compiler):
     varies across Unices and is stored in Python's Makefile.
     """
     if compiler.compiler_type == "unix":
-        (cc, cxx, opt, cflags, ccshared, ldshared, so_ext) = \
+        (cc, cxx, opt, cflags, ccshared, ldshared, so_ext, ar, ar_flags) = \
             get_config_vars('CC', 'CXX', 'OPT', 'CFLAGS',
-                            'CCSHARED', 'LDSHARED', 'SO')
+                            'CCSHARED', 'LDSHARED', 'SO', 'AR',
+                            'ARFLAGS')
 
         newcc = None
         if 'CC' in os.environ:
@@ -203,6 +204,12 @@ def customize_compiler(compiler):
             cpp = cpp + ' ' + os.environ['CPPFLAGS']
             cflags = cflags + ' ' + os.environ['CPPFLAGS']
             ldshared = ldshared + ' ' + os.environ['CPPFLAGS']
+        if 'AR' in os.environ:
+            ar = os.environ['AR']
+        if 'ARFLAGS' in os.environ:
+            archiver = ar + ' ' + os.environ['ARFLAGS']
+        else:
+            archiver = ar + ' ' + ar_flags
 
         cc_cmd = cc + ' ' + cflags
         compiler.set_executables(
@@ -211,7 +218,8 @@ def customize_compiler(compiler):
             compiler_so=cc_cmd + ' ' + ccshared,
             compiler_cxx=cxx,
             linker_so=ldshared,
-            linker_exe=cc)
+            linker_exe=cc,
+            archiver=archiver)
 
         compiler.shared_lib_extension = so_ext
 
diff --git a/Lib/distutils/tests/test_build_clib.py b/Lib/distutils/tests/test_build_clib.py
index 4f4e2bc7c6b..bef1bd99536 100644
--- a/Lib/distutils/tests/test_build_clib.py
+++ b/Lib/distutils/tests/test_build_clib.py
@@ -122,7 +122,8 @@ class BuildCLibTestCase(support.TempdirManager,
         # before we run the command, we want to make sure
         # all commands are present on the system
         # by creating a compiler and checking its executables
-        from distutils.ccompiler import new_compiler, customize_compiler
+        from distutils.ccompiler import new_compiler
+        from distutils.sysconfig import customize_compiler
 
         compiler = new_compiler()
         customize_compiler(compiler)
diff --git a/Lib/distutils/tests/test_ccompiler.py b/Lib/distutils/tests/test_ccompiler.py
index e21873e821b..45e477a429e 100644
--- a/Lib/distutils/tests/test_ccompiler.py
+++ b/Lib/distutils/tests/test_ccompiler.py
@@ -4,7 +4,8 @@ import unittest
 from test.test_support import captured_stdout
 
 from distutils.ccompiler import (gen_lib_options, CCompiler,
-                                 get_default_compiler, customize_compiler)
+                                 get_default_compiler)
+from distutils.sysconfig import customize_compiler
 from distutils import debug
 from distutils.tests import support
 
diff --git a/Misc/NEWS b/Misc/NEWS
index 024a616878d..15293b1b559 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -90,6 +90,13 @@ Core and Builtins
 Library
 -------
 
+- Issue #13994: Earler partial revert of Distutils enhancements in 2.7
+  has left two versions of customize_compiler, the original in
+  distutils.sysconfig and another copy in distutils.ccompiler, with some
+  parts of distutils calling one and others using the other.
+  Complete the revert back to only having one in distutils.sysconfig as
+  is the case in 3.x.
+
 - Issue #13590: On OS X 10.7 and 10.6 with Xcode 4.2, building
   Distutils-based packages with C extension modules may fail because
   Apple has removed gcc-4.2, the version used to build python.org