Index: trunk/.github/workflows/ant.yml
===================================================================
--- trunk/.github/workflows/ant.yml	(revision 17086)
+++ trunk/.github/workflows/ant.yml	(revision 17155)
@@ -17,4 +17,6 @@
   build:
     runs-on: ${{ matrix.os }}
+    env:
+      LANG: en_US.UTF-8
     strategy:
       fail-fast: false