Try to install 'xz' in wheel builds, if available, since it's now needed to extract the libxml2/libxslt archives.

scoder · scoder · commit b224e0f69dde · 2022-05-31T09:42:14.000+02:00
diff --git a/tools/manylinux/build-wheels.sh b/tools/manylinux/build-wheels.sh
@@ -39,6 +39,7 @@ run_tests() {
 
 prepare_system() {
     #yum install -y zlib-devel
+    yum -y install xz  || true
     #rm -fr /opt/python/cp34-*
     echo "Python versions found: $(cd /opt/python && echo cp* | sed -e 's|[^ ]*-||g')"
     ${CC:-gcc} --version
