--- src/common/le_architecture.h.orig	2021-04-08 19:30:42.000000000 +0800
+++ src/common/le_architecture.h	2025-03-30 02:10:20.000000000 +0800
@@ -26,6 +26,8 @@
 
 #if WINDOWS
 #include <sys/param.h>          /* #define BYTE_ORDER */
+#elif defined(__APPLE__)
+#include <libkern/OSByteOrder.h>
 #endif
 
 /* This is copied directly from GNUnet headers */
@@ -62,7 +64,25 @@
  * Endian operations
  */
 
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if defined(__APPLE__)
+
+#define LE_htobe16(x) OSSwapHostToBigInt16(x)
+#define LE_htole16(x) OSSwapHostToLittleInt16(x)
+#define LE_be16toh(x) OSSwapBigToHostInt16(x)
+#define LE_le16toh(x) OSSwapLittleToHostInt16(x)
+
+#define LE_htobe32(x) OSSwapHostToBigInt32(x)
+#define LE_htole32(x) OSSwapHostToLittleInt32(x)
+#define LE_be32toh(x) OSSwapBigToHostInt32(x)
+#define LE_le32toh(x) OSSwapLittleToHostInt32(x)
+
+#define LE_htobe64(x) OSSwapHostToBigInt64(x)
+#define LE_htole64(x) OSSwapHostToLittleInt64(x)
+#define LE_be64toh(x) OSSwapBigToHostInt64(x)
+#define LE_le64toh(x) OSSwapLittleToHostInt64(x)
+
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+
 #define LE_htobe16(x) __bswap_16 (x)
 #define LE_htole16(x) (x)
 #define LE_be16toh(x) __bswap_16 (x)
@@ -77,8 +97,9 @@
 #define LE_htole64(x) (x)
 #define LE_be64toh(x) __bswap_64 (x)
 #define LE_le64toh(x) (x)
-#endif
-#if __BYTE_ORDER == __BIG_ENDIAN
+
+#elif __BYTE_ORDER == __BIG_ENDIAN
+
 #define LE_htobe16(x) (x)
 #define LE_htole16(x) __bswap_16 (x)
 #define LE_be16toh(x) (x)
@@ -93,8 +114,10 @@
 #define LE_htole64(x) __bswap_64 (x)
 #define LE_be64toh(x) (x)
 #define LE_le64toh(x) __bswap_64 (x)
-#endif
 
+#else
+#error "Endianness undefined!"
+#endif
 
 /**
  * gcc-ism to get packed structs.