X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/71cb558dfe0f9c80e697308a5084de3b9926ee9c..049016237e8ad3666609295234ed550e66cc185c:/data/glr.cc

diff --git a/data/glr.cc b/data/glr.cc
index 6527b0a2..0e53d619 100644
--- a/data/glr.cc
+++ b/data/glr.cc
@@ -87,12 +87,17 @@ m4_define([b4_yy_symbol_print_generate],
 ]b4_parse_param_use[]dnl
 [  yyparser.yy_symbol_print_ (yytype, yyvaluep]b4_locations_if([, yylocationp])[);
 }
-]])
+]])[
 
+# Hijack the initial action to initialize the locations.
+]b4_locations_if([b4_percent_define_ifdef([[api.location.type]], [],
+[m4_define([b4_initial_action],
+[yylloc.initialize ();]m4_ifdef([b4_initial_action], [
+m4_defn([b4_initial_action])]))])])[
 
 # Hijack the post prologue to insert early definition of YYLLOC_DEFAULT
 # and declaration of yyerror.
-m4_append([b4_post_prologue],
+]m4_append([b4_post_prologue],
 [b4_syncline([@oline@], [@ofile@])[
 ]b4_yylloc_default_define[
 #define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc)