#define CRC32C(c,d) (c=(c>>8)^crc32c_table[(c^(d))&0xFF])
-extern const guint32 crc32c_table[256];
+WS_VAR_IMPORT const guint32 crc32c_table[256];
/** Compute CRC32C checksum of a buffer of data.
@param buf The buffer containing the data.
@return The CRC32C checksum. */
extern guint32 crc32c_calculate(const void *buf, int len, guint32 crc);
-extern const guint32 crc32_ccitt_table[256];
+WS_VAR_IMPORT const guint32 crc32_ccitt_table[256];
/** Compute CRC32 CCITT checksum of a buffer of data.
@param buf The buffer containing the data.