diff --git a/build.py b/build.py
index ce5e7af2..4a9fd894 100755
--- a/build.py
+++ b/build.py
@@ -40,8 +40,11 @@ try:
 except ImportError:
     from buildtools.backports.shutil_which import which
 
+try:
+    from setuptools.modified import newer, newer_group
+except ImportError:
+    from distutils.dep_util import newer, newer_group
 
-from distutils.dep_util import newer, newer_group
 from buildtools.config  import Config, msg, opj, posixjoin, loadETG, etg2sip, findCmd, \
                                phoenixDir, wxDir, copyIfNewer, copyFile, \
                                macSetLoaderNames, \
diff --git a/buildtools/config.py b/buildtools/config.py
index 94c216ec..5bee90cd 100644
--- a/buildtools/config.py
+++ b/buildtools/config.py
@@ -23,7 +23,10 @@ import platform
 
 from distutils.file_util import copy_file
 from distutils.dir_util  import mkpath
-from distutils.dep_util  import newer
+try:
+    from setuptools.modified import newer
+except ImportError:
+    from distutils.dep_util import newer
 
 import distutils.sysconfig
 
@@ -907,29 +910,29 @@ def runcmd(cmd, getOutput=False, echoCmd=True, fatal=True, onError=None):
         otherKwArgs = dict(stdout=subprocess.PIPE,
                            stderr=subprocess.STDOUT)
 
-    sp = subprocess.Popen(cmd, shell=True, env=os.environ, **otherKwArgs)
+    with subprocess.Popen(cmd, shell=True, env=os.environ, **otherKwArgs) as sp:
 
-    output = None
-    if getOutput:
-        outputEncoding = 'cp1252' if sys.platform == 'win32' else 'utf-8'
-        output = sp.stdout.read()
-        if sys.version_info > (3,):
-            output = output.decode(outputEncoding)
-        output = output.rstrip()
-
-    rval = sp.wait()
-    if rval:
-        # Failed!
-        #raise subprocess.CalledProcessError(rval, cmd)
-        print("Command '%s' failed with exit code %d." % (cmd, rval))
+        output = None
         if getOutput:
-            print(output)
-        if onError is not None:
-            onError()
-        if fatal:
-            sys.exit(rval)
+            outputEncoding = 'cp1252' if sys.platform == 'win32' else 'utf-8'
+            output = sp.stdout.read()
+            if sys.version_info > (3,):
+                output = output.decode(outputEncoding)
+            output = output.rstrip()
 
-    return output
+        rval = sp.wait()
+        if rval:
+            # Failed!
+            #raise subprocess.CalledProcessError(rval, cmd)
+            print("Command '%s' failed with exit code %d." % (cmd, rval))
+            if getOutput:
+                print(output)
+            if onError is not None:
+                onError()
+            if fatal:
+                sys.exit(rval)
+
+        return output
 
 
 def myExecfile(filename, ns):
diff --git a/buildtools/distutils_hacks.py b/buildtools/distutils_hacks.py
index 3626e986..eafd5983 100644
--- a/buildtools/distutils_hacks.py
+++ b/buildtools/distutils_hacks.py
@@ -18,7 +18,11 @@ import distutils.command.install_data
 import distutils.command.install_headers
 import distutils.command.clean
 
-from   distutils.dep_util import newer, newer_group
+try:
+    from setuptools.modified import newer, newer_group
+except ImportError:
+    from distutils.dep_util import newer, newer_group
+
 from distutils import log
 
 from .config import Config, posixjoin, loadETG, etg2sip