(struct ccl_program): New member stack_idx.

diff --git a/src/ccl.h b/src/ccl.h
index 5965b74155a757d8c62b4d31306fbad5efa44dc5..0a784448f029bc6729ebde774e9344a6c49626db 100644 (file)
--- a/src/ccl.h
+++ b/src/ccl.h
@@ -52,6 +52,7 @@ struct ccl_program {
   int buf_magnification;       /* Output buffer magnification.  How
                                   many times bigger the output buffer
                                   should be than the input buffer.  */
+  int stack_idx;               /* How deep the call of CCL_Call is nested.  */
 };
 
 /* This data type is used for the spec field of the structure