main: rework preprocessor invocation

[cparser] / symbol.h

diff --git a/symbol.h b/symbol.h
index 2f0dc3b..42ef131 100644 (file)
--- a/symbol.h
+++ b/symbol.h
@@ -23,4 +23,7 @@
 typedef struct symbol_t         symbol_t;
 typedef struct pp_definition_t  pp_definition_t;
 
+/** special symbol used for anonymous/error entities. */
+extern symbol_t *sym_anonymous;
+
 #endif