Work on check-newest-clang.

Author: bhaible

.github/workflows/many-platforms.yml

@@ -912,6 +912,7 @@ jobs:
             : "apt update; apt -y install ..."
             cd /work
             ls -l
+            df -T .
             export CPPFLAGS="-Wall"
             export CC=clang
             ./build-on.sh '${{ env.package }}' '' 'make' 'apt update; apt -y install libacl1-dev libattr1-dev libgmp-dev libcap-dev libsystemd-dev libssl-dev locales && localedef -i en_US -f UTF-8 en_US.UTF-8 && localedef -i ar_SA -f ISO-8859-6 ar_SA.ISO-8859-6 && localedef -i de_DE -f UTF-8 de_DE.UTF-8 && localedef -i es_ES -f UTF-8 es_ES.UTF-8 && localedef -i fa_IR -f UTF-8 fa_IR && localedef -i fr_FR -f ISO-8859-1 fr_FR.ISO-8859-1 && localedef -i fr_FR -f UTF-8 fr_FR.UTF-8 && localedef -i ja_JP -f EUC-JP ja_JP.EUC-JP && localedef -i tr_TR -f UTF-8 tr_TR.UTF-8 && localedef -i zh_CN -f GB18030 zh_CN.GB18030 && localedef -i zh_HK -f BIG5-HKSCS zh_HK.BIG5-HKSCS'