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-rw-r--r--src/runtime/c/pgf/linearizer.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/runtime/c/pgf/linearizer.h b/src/runtime/c/pgf/linearizer.h
index 4fccc7a83..6cd2e1782 100644
--- a/src/runtime/c/pgf/linearizer.h
+++ b/src/runtime/c/pgf/linearizer.h
@@ -75,8 +75,10 @@ void
pgf_lzr_get_table(PgfConcr* concr, PgfCncTree ctree,
size_t* n_lins, GuString** labels);
+#ifdef PGF_DATA_H_
// Used internally in the parser
GuString
pgf_get_tokens(PgfSymbols* sym, uint16_t sym_idx, GuPool* pool);
+#endif
#endif