[#1937] make grammar pages build with older sphinx

diff --git a/doc/sphinx/conf.py b/doc/sphinx/conf.py
index 340ba20a49e4f50dc34656f680639d4015557001..1888af2a4cf70b3e06a67283a7c69a232aaab568 100644 (file)
--- a/doc/sphinx/conf.py
+++ b/doc/sphinx/conf.py
@@ -98,6 +98,11 @@ exclude_patterns = [
     'arm/hooks-run-script.rst',
     'arm/hooks-stat-cmds.rst',
     'arm/hammer.rst',
+    'grammar/grammar-ca-parser.rst',
+    'grammar/grammar-d2-parser.rst',
+    'grammar/grammar-dhcp4-parser.rst',
+    'grammar/grammar-dhcp6-parser.rst',
+    'grammar/grammar-netconf-parser.rst',
 ]
 
 # The name of the Pygments (syntax highlighting) style to use.