doc: Write absolute path to DTDS into XML catalog

Signed-off-by: Simon McVittie <smcv@collabora.com>

diff --git a/doc/meson.build b/doc/meson.build
index 3b97f4bd8e79785ca21f415c362abc8cab7a4db2..458dbacb5b0fe0d50536502a6f36db428fc2e262 100644 (file)
--- a/doc/meson.build
+++ b/doc/meson.build
@@ -157,7 +157,7 @@ configure_file(
     input: 'catalog.xml.in',
     output: 'catalog.xml',
     install_dir: xml_dir,
-    configuration: {'DBUS_DTD_DIR': xml_dir},
+    configuration: {'DBUS_DTD_DIR': get_option('prefix') / xml_dir},
 )
 
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