#ifndef USTERR_H
#define USTERR_H
-#define DBG(fmt, args...) fprintf(stderr, fmt "\n", ## args)
-#define WARN(fmt, args...) fprintf(stderr, "usertrace: WARNING: " fmt "\n", ## args)
-#define ERR(fmt, args...) fprintf(stderr, "usertrace: ERROR: " fmt "\n", ## args)
-#define BUG(fmt, args...) fprintf(stderr, "usertrace: BUG: " fmt "\n", ## args)
+#define DBG(fmt, args...) fprintf(stderr, fmt "\n", ## args); fflush(stderr)
+#define WARN(fmt, args...) fprintf(stderr, "usertrace: WARNING: " fmt "\n", ## args); fflush(stderr)
+#define ERR(fmt, args...) fprintf(stderr, "usertrace: ERROR: " fmt "\n", ## args); fflush(stderr)
+#define BUG(fmt, args...) fprintf(stderr, "usertrace: BUG: " fmt "\n", ## args); fflush(stderr)
#define PERROR(call) perror("usertrace: ERROR: " call)
#define BUG_ON(condition) do { if (unlikely(condition)) ERR("condition not respected (BUG)"); } while(0)