--- /dev/null	
+++ b/multimedia/gstreamer1/files/patch-gst_parse_grammar.y	
@@ -0,0 +1,11 @@ 
+--- gst/parse/grammar.y.orig	2019-12-03 10:42:21 UTC
++++ gst/parse/grammar.y
+@@ -796,7 +796,7 @@ static int yyerror (void *scanner, graph_t *graph, con
+ %lex-param { void *scanner }
+ %parse-param { void *scanner }
+ %parse-param { graph_t *graph }
+-%pure-parser
++%define api.pure
+ 
+ %start graph
+ %%