--- openconnect-internal.h.org 2023-05-19 18:12:15.000000000 +0200 +++ openconnect-internal.h 2023-12-12 18:38:19.651357296 +0100 @@ -85,6 +85,7 @@ #define N_(s) s #include <libxml/tree.h> +#include <libxml/parser.h> #include <zlib.h> #ifdef _WIN32