diff --git a/lib/wp/base-dirs.c b/lib/wp/base-dirs.c
index 5121e5f0..e1782ed2 100644
--- a/lib/wp/base-dirs.c
+++ b/lib/wp/base-dirs.c
@@ -8,6 +8,8 @@
 
 #include "base-dirs.h"
 #include "log.h"
+#include "wpversion.h"
+#include "wpbuildbasedirs.h"
 
 WP_DEFINE_LOCAL_LOG_TOPIC ("wp-base-dirs")
 
@@ -99,8 +101,7 @@ lookup_dirs (guint flags, gboolean is_absolute)
       }
     }
     if (flags & WP_BASE_DIRS_BUILD_SYSCONFDIR) {
-      g_ptr_array_add (dirs,
-          g_canonicalize_filename (WIREPLUMBER_DEFAULT_CONFIG_DIR, NULL));
+      g_ptr_array_add (dirs, g_canonicalize_filename (subdir, BUILD_SYSCONFDIR));
     }
     if (flags & WP_BASE_DIRS_XDG_DATA_DIRS) {
       const gchar * const *xdg_dirs = g_get_system_data_dirs ();
@@ -109,12 +110,12 @@ lookup_dirs (guint flags, gboolean is_absolute)
       }
     }
     if (flags & WP_BASE_DIRS_BUILD_DATADIR) {
-      g_ptr_array_add (dirs,
-          g_canonicalize_filename(WIREPLUMBER_DEFAULT_DATA_DIR, NULL));
+      g_ptr_array_add (dirs, g_canonicalize_filename (subdir, BUILD_DATADIR));
     }
     if (flags & WP_BASE_DIRS_BUILD_LIBDIR) {
-      g_ptr_array_add (dirs,
-          g_canonicalize_filename (WIREPLUMBER_DEFAULT_MODULE_DIR, NULL));
+      subdir = (flags & WP_BASE_DIRS_FLAG_SUBDIR_WIREPLUMBER) ?
+          "wireplumber-" WIREPLUMBER_API_VERSION : ".";
+      g_ptr_array_add (dirs, g_canonicalize_filename (subdir, BUILD_LIBDIR));
     }
   }
 
diff --git a/lib/wp/meson.build b/lib/wp/meson.build
index 399d195e..333d8212 100644
--- a/lib/wp/meson.build
+++ b/lib/wp/meson.build
@@ -111,15 +111,21 @@ wpversion = configure_file(
 )
 wp_gen_sources += [wpversion]
 
+wpbuildbasedirs_data = configuration_data()
+wpbuildbasedirs_data.set('BUILD_SYSCONFDIR', '"@0"'.format(get_option('prefix') / get_option('sysconfdir')))
+wpbuildbasedirs_data.set('BUILD_DATADIR', '"@0"'.format(get_option('prefix') / get_option('datadir')))
+wpbuildbasedirs_data.set('BUILD_LIBDIR', '"@0"'.format(get_option('prefix') / get_option('libdir')))
+wpbuildbasedirs_data.set('BUILD_LOCALEDIR', '"@0"'.format(get_option('prefix') / get_option('localedir')))
+wpbuildbasedirs = configure_file (
+  output : 'wpbuildbasedirs.h',
+  configuration : wpbuildbasedirs_data,
+)
+
 wp_lib = library('wireplumber-' + wireplumber_api_version,
-  wp_lib_sources, wp_lib_priv_sources, wpenums_c, wpenums_h, wpversion,
+  wp_lib_sources, wp_lib_priv_sources, wpenums_c, wpenums_h, wpversion, wpbuildbasedirs,
   c_args : [
     '-D_GNU_SOURCE',
     '-DG_LOG_USE_STRUCTURED',
-    '-DWIREPLUMBER_DEFAULT_MODULE_DIR="@0@"'.format(wireplumber_module_dir),
-    '-DWIREPLUMBER_DEFAULT_CONFIG_DIR="@0@"'.format(wireplumber_config_dir),
-    '-DWIREPLUMBER_DEFAULT_DATA_DIR="@0@"'.format(wireplumber_data_dir),
-    '-DLOCALE_DIR="@0@"'.format(wireplumber_locale_dir),
     '-DBUILDING_WP',
   ],
   install: true,
diff --git a/lib/wp/wp.c b/lib/wp/wp.c
index 6d3e9a72..924b8ab1 100644
--- a/lib/wp/wp.c
+++ b/lib/wp/wp.c
@@ -9,6 +9,7 @@
 #include "wp.h"
 #include <pipewire/pipewire.h>
 #include <libintl.h>
+#include "wpbuildbasedirs.h"
 
 WP_DEFINE_LOCAL_LOG_TOPIC ("wp")
 
@@ -39,7 +40,7 @@ wp_init (WpInitFlags flags)
   if (flags & WP_INIT_SPA_TYPES)
     wp_spa_dynamic_type_init ();
 
-  bindtextdomain (GETTEXT_PACKAGE, LOCALE_DIR);
+  bindtextdomain (GETTEXT_PACKAGE, BUILD_LOCALEDIR);
   bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
 
   /* ensure WpProxy subclasses are loaded, which is needed to be able