fix cffi

Author: obfusk

pythonforandroid/recipes/cffi/__init__.py

@@ -35,7 +35,7 @@ def get_recipe_env(self, arch=None):
                           self.ctx.get_libs_dir(arch.arch))
         env['LDFLAGS'] += ' -L{}'.format(os.path.join(self.ctx.bootstrap.build_dir, 'libs', arch.arch))
         # required for libc and libdl
-        env['LDFLAGS'] += ' -L{}'.format(self.ndk_lib_dir)
+        env['LDFLAGS'] += ' -L{}'.format(self.ctx.ndk_lib_dir)
         env['PYTHONPATH'] = ':'.join([
             self.ctx.get_site_packages_dir(),
             env['BUILDLIB_PATH'],