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-rw-r--r--examples/network/clone.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/examples/network/clone.c b/examples/network/clone.c
index 80e80af27..00c25c1ae 100644
--- a/examples/network/clone.c
+++ b/examples/network/clone.c
@@ -9,7 +9,10 @@
# include <unistd.h>
#endif
-/* Shamelessly borrowed from http://stackoverflow.com/questions/3417837/ */
+/* Shamelessly borrowed from http://stackoverflow.com/questions/3417837/
+ * with permission of the original author, Martin Pool.
+ * http://sourcefrog.net/weblog/software/languages/C/unused.html
+ */
#ifdef UNUSED
#elif defined(__GNUC__)
# define UNUSED(x) UNUSED_ ## x __attribute__((unused))