diff --git a/README.md b/README.md
index 93cc8838..137f3f0d 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,14 @@ On Arch, it's:
 
     $ pacman -S python-pyqt5
 
+### OS X and pyenv
+
+[pyenv][pyenv] is a popular way to manage multiple python versions. However, be aware that dupeGuru
+will not compile with a pyenv's python unless it's been built with `--enable-framework`. You can do
+this with:
+
+    $ env PYTHON_CONFIGURE_OPTS="--enable-framework" pyenv install 3.4.3
+
 ## Setting up the virtual environment
 
 Use Python's built-in `pyvenv` to create a virtual environment in which we're going to install our.
@@ -121,4 +129,4 @@ You can also package dupeGuru into an installable package with:
 [pyqt]: http://www.riverbankcomputing.com
 [cxfreeze]: http://cx-freeze.sourceforge.net/
 [advinst]: http://www.advancedinstaller.com
-
+[pyenv]: https://github.com/yyuu/pyenv
diff --git a/build.py b/build.py
index 86997c55..c25b5968 100644
--- a/build.py
+++ b/build.py
@@ -70,9 +70,6 @@ def parse_args():
     (options, args) = parser.parse_args()
     return options
 
-def cocoa_compile_command(edition):
-    return '{0} waf configure --edition {1} && {0} waf'.format(sys.executable, edition)
-
 def cocoa_app(edition):
     app_path = {
         'se': 'build/dupeGuru.app',
@@ -160,7 +157,7 @@ def build_cocoa(edition, dev):
         delete_files_with_pattern(pydep_folder, '__pycache__')
     print("Compiling with WAF")
     os.chdir('cocoa')
-    print_and_do(cocoa_compile_command(edition))
+    print_and_do('python2.7 waf configure --edition {} && python2.7 waf'.format(edition))
     os.chdir('..')
     app.copy_executable('cocoa/build/dupeGuru')
     build_help(edition)
diff --git a/hscommon/build.py b/hscommon/build.py
index eb0ddd51..1547454e 100644
--- a/hscommon/build.py
+++ b/hscommon/build.py
@@ -479,6 +479,8 @@ def build_cocoa_ext(extname, dest, source_files, extra_frameworks=(), extra_incl
         extra_link_args += ['-framework', extra]
     ext = Extension(extname, source_files, extra_link_args=extra_link_args, include_dirs=extra_includes)
     setup(script_args=['build_ext', '--inplace'], ext_modules=[ext])
-    fn = extname + '.so'
+    # Our problem here is to get the fully qualified filename of the resulting .so but I couldn't
+    # find a documented way to do so. The only thing I could find is this below :(
+    fn = ext._file_name
     assert op.exists(fn)
     move(fn, op.join(dest, fn))