From a2800916bc91444db497d323d15163f85bbc0baf Mon Sep 17 00:00:00 2001
From: Vincent Philippon <sindaewoh@gmail.com>
Date: Thu, 23 Nov 2017 16:16:13 -0500
Subject: [PATCH] Add '-markerlib' to the PACKAGES_TO_IGNORE

---
 piptools/sync.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/piptools/sync.py b/piptools/sync.py
index 108925700..5c473916d 100644
--- a/piptools/sync.py
+++ b/piptools/sync.py
@@ -8,6 +8,7 @@
 from .utils import flat_map, format_requirement, key_from_ireq, key_from_req
 
 PACKAGES_TO_IGNORE = [
+    '-markerlib',
     'pip',
     'pip-tools',
     'pip-review',