--- ../build2/libbuild2/cc/pkgconfig-libpkgconf.cxx	2026-09-17 12:45:15.302989863 +0300
+++ ../build2/libbuild2/cc/pkgconfig-libpkgconf.cxx	2026-09-17 12:46:55.387180773 +0300
@@ -40,6 +40,20 @@
             ::pkgconf_cross_personality_default ());
 }
 
+template <typename H, typename P, typename E>
+static inline pkgconf_client_t*
+call_pkgconf_client_new (
+  pkgconf_client_t* (*f) (H, void*, P, void*, E),
+  H error_handler,
+  void* error_handler_data)
+{
+  return f (error_handler,
+            error_handler_data,
+            ::pkgconf_cross_personality_default (),
+            nullptr, /* client_data */
+            nullptr  /* environ_lookup_handler */);
+}
+
 namespace build2
 {
   namespace cc