diff --git a/00178-dont-duplicate-flags-in-sysconfig.patch b/00178-dont-duplicate-flags-in-sysconfig.patch
deleted file mode 100644
index 72d665d..0000000
--- a/00178-dont-duplicate-flags-in-sysconfig.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-From e2f8cf627e31970ddb5134ade1d049ef0a5d8b96 Mon Sep 17 00:00:00 2001
-From: Bohuslav Kabrda <bkabrda@redhat.com>
-Date: Fri, 19 Jun 2020 16:11:14 +0200
-Subject: [PATCH] 00178: Don't duplicate various FLAGS in sysconfig values
-
-http://bugs.python.org/issue17679
-
-Co-Authored-By: Bohuslav Kabrda <bkabrda@redhat.com>
----
- Lib/distutils/sysconfig.py | 5 ++++-
- Lib/sysconfig.py           | 5 ++++-
- 2 files changed, 8 insertions(+), 2 deletions(-)
-
-diff --git a/Lib/distutils/sysconfig.py b/Lib/distutils/sysconfig.py
-index ff0b131df2..2013efaa8b 100644
---- a/Lib/distutils/sysconfig.py
-+++ b/Lib/distutils/sysconfig.py
-@@ -356,7 +356,10 @@ def parse_makefile(fn, g=None):
-                     done[n] = item = ""
-                 if found:
-                     after = value[m.end():]
--                    value = value[:m.start()] + item + after
-+                    value = value[:m.start()]
-+                    if item.strip() not in value:
-+                        value += item
-+                    value += after
-                     if "$" in after:
-                         notdone[name] = value
-                     else:
-diff --git a/Lib/sysconfig.py b/Lib/sysconfig.py
-index 8168e9c5a9..240bb6608a 100644
---- a/Lib/sysconfig.py
-+++ b/Lib/sysconfig.py
-@@ -294,7 +294,10 @@ def _parse_makefile(filename, vars=None):
- 
-                 if found:
-                     after = value[m.end():]
--                    value = value[:m.start()] + item + after
-+                    value = value[:m.start()]
-+                    if item.strip() not in value:
-+                        value += item
-+                    value += after
-                     if "$" in after:
-                         notdone[name] = value
-                     else:
--- 
-2.26.2
-
diff --git a/python3.6.spec b/python3.6.spec
index 1889b92..928da55 100644
--- a/python3.6.spec
+++ b/python3.6.spec
@@ -17,7 +17,7 @@ URL: https://www.python.org/
 %global prerel rc1
 %global upstream_version %{general_version}%{?prerel}
 Version: %{general_version}%{?prerel:~%{prerel}}
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: Python
 
 
@@ -311,12 +311,6 @@ Patch163: 00163-disable-parts-of-test_socket-in-rpm-build.patch
 # See https://bugzilla.redhat.com/show_bug.cgi?id=614680
 Patch170: 00170-gc-assertions.patch
 
-# 00178 #
-# Don't duplicate various FLAGS in sysconfig values
-# http://bugs.python.org/issue17679
-# Does not affect python2 AFAICS (different sysconfig values initialization)
-Patch178: 00178-dont-duplicate-flags-in-sysconfig.patch
-
 # 00189 #
 # Instead of bundled wheels, use our RPM packaged wheels from
 # /usr/share/python-wheels
@@ -639,7 +633,6 @@ rm -r Modules/zlib
 %patch160 -p1
 %patch163 -p1
 %patch170 -p1
-%patch178 -p1
 
 %if %{with rpmwheels}
 %patch189 -p1
@@ -1535,6 +1528,11 @@ CheckPython optimized
 # ======================================================
 
 %changelog
+* Thu Jun 25 2020 Victor Stinner <vstinner@python.org> - 3.6.11~rc1-2
+- Remove downstream 00178-dont-duplicate-flags-in-sysconfig.patch which
+  introduced a bug on distutils.sysconfig.get_config_var('LIBPL')
+  (rhbz#1851008).
+
 * Fri Jun 19 2020 Petr Viktorin <pviktori@redhat.com> - 3.6.11-1
 - Update to 3.6.11rc1