1 files changed, 4 insertions, 0 deletions
diff --git a/output.h b/output.h
index 2bb1c39..1f0e2d7 100644
--- a/output.h
+++ b/output.h
@@ -22,10 +22,14 @@ struct output
  };
 
 extern struct output *output_context;
+extern unsigned int stdio_traced;
 
 #define OUTPUT_SET(_new)    do{ if ((_new)->syncout) output_context = (_new); }while(0)
 #define OUTPUT_UNSET()      do{ output_context = NULL; }while(0)
 
+#define OUTPUT_TRACED()     do{ stdio_traced = 1; }while(0)
+#define OUTPUT_IS_TRACED()  (!!stdio_traced)
+
 FILE *output_tmpfile (char **, const char *);
 
 /* Initialize and close a child output structure: if NULL do this program's