setuptools is required at runtime, but using MODPY_SETUPTOOLS=Yes broke the
build because of --single-version-externally-managed that distutils can't
deal with. It's needed to supercede distutils' install by setuptools' one.

Install the manpage and docs according to our file hierarchy, otherwise:
* the manpage was installed in /usr/share/man/man1
* doc files were in sites-packages, now they're in ${LOCALBASE}/share/doc/lfm;
  see also patch-lfm_actions_py
* default config files are needed in sites-packages in case $HOME/.config/lfm
is empty, and can be restored through a runtime option. There is no need for @sample
entries in PLIST since lfm reads its configuration files in ~/.config/lfm only.

Index: setup.py
--- setup.py.orig
+++ setup.py
@@ -12,6 +12,7 @@ Released under GNU Public License, read COPYING file f
 
 import os
 from distutils.core import setup
+from setuptools.command.install import install as install
 from os.path import join
 from sys import argv, exit, prefix, version_info
 
@@ -52,9 +53,6 @@ if 'bdist_wheel' in argv:
 import shutil
 try:
     try:
-        os.mkdir('lfm/doc')
-        for f in DOC_FILES:
-            shutil.copy2(f, 'lfm/doc')
         os.symlink('../etc', 'lfm/etc')
     except:
         pass
@@ -71,11 +69,12 @@ try:
           license='GPL3+',
           packages=['lfm'],
           scripts=['lfm/lfm'],
-          data_files=[(join(prefix, 'share/man/man1'), MAN_FILES)],
-          package_data={'': CONFIG_FILES + [join('doc', f) for f in DOC_FILES]},
+          data_files=[(join(prefix, 'man/man1'), MAN_FILES),
+                      (join(prefix, 'share/doc/lfm'), DOC_FILES),
+                     ],
+          package_data={'': CONFIG_FILES},
     )
 finally:
-    shutil.rmtree('lfm/doc')
     try:
         os.unlink('lfm/etc')
     except IsADirectoryError: