1 files changed, 7 insertions, 4 deletions
diff --git a/awk.h b/awk.h
index 4e01325..cc30249 100644
--- a/awk.h
+++ b/awk.h
@@ -25,7 +25,11 @@ THIS SOFTWARE.
 #include <assert.h>
 #include <stdint.h>
 #include <stdbool.h>
+#if __STDC_VERSION__ <= 199901L
+#define noreturn
+#else
 #include <stdnoreturn.h>
+#endif
 
 typedef double	Awkfloat;
 
@@ -40,14 +44,13 @@ typedef	unsigned char uschar;
  */
 #define setptr(ptr, a)	(*(char *)(intptr_t)(ptr)) = (a)
 
-#define	NN(p)	((p) ? (p) : "(null)")	/* guaranteed non-null for dprintf
+#define	NN(p)	((p) ? (p) : "(null)")	/* guaranteed non-null for DPRINTF
 */
 #define	DEBUG
 #ifdef	DEBUG
-			/* uses have to be doubly parenthesized */
-#	define	dprintf(x)	if (dbg) printf x
+#	define	DPRINTF(...)	if (dbg) printf(__VA_ARGS__)
 #else
-#	define	dprintf(x)
+#	define	DPRINTF(...)
 #endif
 
 extern enum compile_states {