When ROOT or PORTAGE_CONFIGROOT is entirely empty, map
the value to / since otherwise is becomes the current
working directory which gives undesirable results.

Bug: https://bugs.gentoo.org/663904
---
 lib/portage/package/ebuild/_config/LocationsManager.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/portage/package/ebuild/_config/LocationsManager.py 
b/lib/portage/package/ebuild/_config/LocationsManager.py
index f7d7209ff..b8a4ccdd0 100644
--- a/lib/portage/package/ebuild/_config/LocationsManager.py
+++ b/lib/portage/package/ebuild/_config/LocationsManager.py
@@ -60,7 +60,7 @@ class LocationsManager(object):
                        self.config_root = portage.const.EPREFIX + os.sep
 
                self.config_root = normalize_path(os.path.abspath(
-                       self.config_root)).rstrip(os.path.sep) + os.path.sep
+                       self.config_root or os.sep)).rstrip(os.path.sep) + 
os.path.sep
 
                self._check_var_directory("PORTAGE_CONFIGROOT", 
self.config_root)
                self.abs_user_config = os.path.join(self.config_root, 
USER_CONFIG_PATH)
@@ -304,8 +304,7 @@ class LocationsManager(object):
                        self.target_root = root_overwrite
                        if not self.target_root.strip():
                                self.target_root = None
-               if self.target_root is None:
-                       self.target_root = "/"
+               self.target_root = self.target_root or os.sep
 
                self.target_root = normalize_path(os.path.abspath(
                        self.target_root)).rstrip(os.path.sep) + os.path.sep
-- 
2.16.4


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