1 files changed, 0 insertions, 1 deletions
diff --git a/awk.h b/awk.h
index f4fa4d4d..c0f44d56 100644
--- a/awk.h
+++ b/awk.h
@@ -1455,7 +1455,6 @@ extern bool is_identchar(int c);
 extern NODE *make_regnode(NODETYPE type, NODE *exp);
 extern bool validate_qualified_name(char *token);
 /* builtin.c */
-extern void warn_bool(const char *func, int argnum, NODE *n);
 extern double double_to_int(double d);
 extern NODE *do_exp(int nargs);
 extern NODE *do_fflush(int nargs);