From e6bc8736983122adea222bf30f299dce551152ff Mon Sep 17 00:00:00 2001
From: Benoit Pierre <benoit.pierre@gmail.com>
Date: Mon, 12 Nov 2018 11:06:34 -0500
Subject: [PATCH] Prevent DistutilsOptionError when prefix is indicated in the
 global environment and --target is used. Fixes #4106.

---
 src/pip/_internal/locations.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pip/_internal/locations.py b/src/pip/_internal/locations.py
index 183aaa39299..a4c79135014 100644
--- a/src/pip/_internal/locations.py
+++ b/src/pip/_internal/locations.py
@@ -157,7 +157,7 @@ def distutils_scheme(dist_name, user=False, home=None, root=None,
     # ideally, we'd prefer a scheme class that has no side-effects.
     assert not (user and prefix), "user={} prefix={}".format(user, prefix)
     i.user = user or i.user
-    if user:
+    if user or home:
         i.prefix = ""
     i.prefix = prefix or i.prefix
     i.home = home or i.home