tests: add missing include for `read()`

diff --git a/tests/decode.c b/tests/decode.c
index 91074c8250c9072c6d04cdd613880cf57612070a..1487afdab22003c4dbe303fcd0d3a45067c3c5a3 100644 (file)
--- a/tests/decode.c
+++ b/tests/decode.c
@@ -16,6 +16,7 @@
  */
 
 #include <stdlib.h>
+#include <unistd.h>
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>