--- meson.build.orig	2022-09-09 14:38:42 UTC
+++ meson.build
@@ -391,7 +391,7 @@ configure_file(
   install_dir: install_pkgconfigdir,
 )
 
-install_includeconfigdir = install_libdir / xmlxx_pcname / 'include'
+install_includeconfigdir = install_includedir / xmlxx_pcname / 'include'
 xmlxxconfig_h = configure_file(
   input: 'libxml++config.h.meson',
   output: 'libxml++config.h',