From 0bc1dbf218a56f834deb23e3cc29b00b8c968c25 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sun, 4 Apr 2021 13:33:23 +0200
Subject: [PATCH] Use user mode for pip upgrade

This is default for some platforms, but not everywhere, so use it
explicitly.

This should fix the error in Travis CI S/390 build.
---
 build/tools/httpbin.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/tools/httpbin.sh b/build/tools/httpbin.sh
index b64609a411..b4b04e32f9 100644
--- a/build/tools/httpbin.sh
+++ b/build/tools/httpbin.sh
@@ -48,7 +48,7 @@ httpbin_launch() {
             #
             # However don't upgrade to a version which is too new because then
             # it may not support Python version that we actually have.
-            python3 -m pip install --upgrade pip==20.0.1
+            python3 -m pip install --user --upgrade pip==20.0.1
             ;;
     esac