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-rw-r--r--yacc/main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/yacc/main.c b/yacc/main.c
index 3f2f9ef8e7..978aac0e0c 100644
--- a/yacc/main.c
+++ b/yacc/main.c
@@ -39,6 +39,7 @@ char temp_form[] = "yacc.XXXXXXX";
#endif
int lineno;
+char *virtual_input_file_name = NULL;
int outline;
char *action_file_name;