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-rw-r--r--contrib/one-true-awk/awk.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/contrib/one-true-awk/awk.h b/contrib/one-true-awk/awk.h
index 25fed14..4b2cb8f 100644
--- a/contrib/one-true-awk/awk.h
+++ b/contrib/one-true-awk/awk.h
@@ -30,6 +30,8 @@ typedef unsigned char uschar;
#define xfree(a) { if ((a) != NULL) { free((char *) a); a = NULL; } }
+#define NN(p) ((p) ? (p) : "(null)") /* guaranteed non-null for dprintf
+*/
#define DEBUG
#ifdef DEBUG
/* uses have to be doubly parenthesized */
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