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-rw-r--r--interface.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/interface.c b/interface.c
index 6342df7c..280c6b7e 100644
--- a/interface.c
+++ b/interface.c
@@ -15,7 +15,12 @@
#include <stdio.h>
#include <string.h>
+#if defined(STDC_HEADERS)
+#include <stdlib.h>
+#endif
+#if defined(HAVE_UNISTD_H)
#include <unistd.h>
+#endif
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <linux/netdevice.h>