[glib: 1/2] gtk-doc: Ensure we have recent enough version

[Philip Withnall <pwithnall src gnome org>]

commit 160143ae275f4e2869baebaee8eebab3ed427d7f
Author: Xavier Claessens <xavier claessens collabora com>
Date:   Fri Nov 29 14:29:23 2019 -0500

    gtk-doc: Ensure we have recent enough version
    
    Older versions won't produce errors, but will silently miss
    documentation for a few symbols.

 docs/reference/meson.build | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/docs/reference/meson.build b/docs/reference/meson.build
index 18999a3f3..4e2553a0f 100644
--- a/docs/reference/meson.build
+++ b/docs/reference/meson.build
@@ -29,6 +29,12 @@ gtkdoc_common_scan_args = [
   '--ignore-decorators=' + '|'.join(ignore_decorators),
 ]
 
+if get_option('gtk_doc')
+  # Check we have the minimum gtk-doc version required. Older versions won't
+  # generate correct documentation.
+  dependency('gtk-doc', version : '>=1.32')
+endif
+
 subdir('gio')
 subdir('glib')
 subdir('gobject')
\ No newline at end of file