Include shared libraries in lib folder for darwin build

cx_Freeze 6.15.10 store included files in Resources folder and make a symlink
in MacOS folder for lib and share.
So we must include shared libraries in the lib folder to be available.
(grafted from cf5adeee978b9ff2de9fc2229c9cd82c63b98302)

--HG--
branch : 6.0

tryton/setup-freeze.py

@@ -70,7 +70,7 @@ def replace_path(match):
     libs = [os.path.basename(p) for p in match.group(1).split(',')]
     required_libs.update(libs)
     if sys.platform == 'darwin':
-        libs = [os.path.join('@executable_path', l) for l in libs]
+        libs = [os.path.join('@executable_path', 'lib', l) for l in libs]
     return 'shared-library="%s"' % ','.join(libs)
 
 
@@ -95,6 +95,10 @@ for ns in required_gi_namespaces:
 
     include_files.append((typefile_tmp, typefile_file))
 
+if sys.platform == 'darwin':
+    lib_dest = 'lib'
+else:
+    lib_dest = '.'
 if sys.platform == 'win32':
     required_libs.update([
         'libepoxy-0.dll',
@@ -109,7 +113,7 @@ for lib in required_libs:
             break
     else:
         raise Exception('%s not found' % lib)
-    include_files.append((path, lib))
+    include_files.append((path, os.path.join(lib_dest, lib)))
 
 ssl_paths = ssl.get_default_verify_paths()
 include_files.append(