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-rw-r--r--sys/dev/em/if_em.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/em/if_em.h b/sys/dev/em/if_em.h
index d280837..370e891 100644
--- a/sys/dev/em/if_em.h
+++ b/sys/dev/em/if_em.h
@@ -207,7 +207,9 @@ POSSIBILITY OF SUCH DAMAGE.
#define IOCTL_CMD_TYPE u_long
#define MAX_NUM_MULTICAST_ADDRESSES 128
#define PCI_ANY_ID (~0U)
+#ifndef ETHER_ALIGN
#define ETHER_ALIGN 2
+#endif
#define QTAG_TYPE 0x8100
/* Defines for printing debug information */
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