Index: setup.py
===================================================================
--- setup.py	(revision 4576)
+++ setup.py	(working copy)
@@ -23,6 +23,7 @@
 from roundup.dist.command.build_py import build_py
 from roundup.dist.command.build import build, list_message_files
 from roundup.dist.command.bdist_rpm import bdist_rpm
+from roundup.dist.command.install_lib import install_lib
 from distutils.core import setup
 
 import sys, os
@@ -126,6 +127,7 @@
                      'build_py': build_py,
                      'build': build,
                      'bdist_rpm': bdist_rpm,
+                     'install_lib': install_lib,
                      },
           packages=packages,
           py_modules=py_modules,
Index: roundup/dist/command/install_lib.py
===================================================================
--- roundup/dist/command/install_lib.py	(revision 0)
+++ roundup/dist/command/install_lib.py	(revision 0)
@@ -0,0 +1,9 @@
+from roundup.dist.command.build import build_message_files, check_manifest
+from distutils.command.install_lib import install_lib as base
+
+class install_lib(base):
+
+    def run(self):
+        check_manifest()
+        build_message_files(self)
+        base.run(self)
Index: roundup/dist/command/build.py
===================================================================
--- roundup/dist/command/build.py	(revision 4576)
+++ roundup/dist/command/build.py	(working copy)
@@ -42,19 +42,19 @@
             n-len(err), n)
         print 'Missing:', '\nMissing: '.join(err)
 
+def build_message_files(command):
+    """For each locale/*.po, build .mo file in target locale directory"""
+    for (_src, _dst) in list_message_files():
+        _build_dst = os.path.join("build", _dst)
+        command.mkpath(os.path.dirname(_build_dst))
+        command.announce("Compiling %s -> %s" % (_src, _build_dst))
+        msgfmt.make(_src, _build_dst)
 
+
 class build(base):
 
-    def build_message_files(self):
-        """For each locale/*.po, build .mo file in target locale directory"""
-        for (_src, _dst) in list_message_files():
-            _build_dst = os.path.join("build", _dst)
-            self.mkpath(os.path.dirname(_build_dst))
-            self.announce("Compiling %s -> %s" % (_src, _build_dst))
-            msgfmt.make(_src, _build_dst)
-
     def run(self):
         check_manifest()
-        self.build_message_files()
+        build_message_files(self)
         base.run(self)