--- docs/Makefile.in.orig	2019-03-06 13:29:08 UTC
+++ docs/Makefile.in
@@ -377,7 +377,7 @@ target_vendor = @target_vendor@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-SUBDIRS = reference tutorial
+SUBDIRS = 
 EXTRA_DIST = gtkdocs_fix
 all: all-recursive