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-rw-r--r--libhw_cr/w5500.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libhw_cr/w5500.c b/libhw_cr/w5500.c
index b7c2ad1..8bdb95b 100644
--- a/libhw_cr/w5500.c
+++ b/libhw_cr/w5500.c
@@ -67,6 +67,8 @@
* SPDX-License-Identifier: MIT
*/
+#include <string.h> /* for memcmp() */
+
/* TODO: Write a <libhw/generic/gpio.h> to avoid w5500.c being
* pico-sdk-specific. */
#include "rp2040_gpioirq.h"