diff --git a/ping.c b/ping.c
index 25bbc3c..5c5d09e 100644
--- a/ping.c
+++ b/ping.c
@@ -75,7 +75,6 @@
 
 #ifdef ANDROID
 #include <sys/auxv.h>
-#define bcmp(a, b, c) memcmp(a, b, c)
 #endif
 
 #define	MAXIPLEN	60
@@ -120,6 +119,7 @@
 char *device;
 int pmtudisc = -1;
 
+
 int
 main(int argc, char **argv)
 {
diff --git a/ping_common.c b/ping_common.c
index 2bdd6f9..0342e1a 100644
--- a/ping_common.c
+++ b/ping_common.c
@@ -630,6 +630,7 @@
 			fprintf(stderr, "Warning: no SO_TIMESTAMP support, falling back to SIOCGSTAMP\n");
 	}
 #endif
+#ifdef SO_MARK
 	if (options & F_MARK) {
 		int ret;
 
@@ -644,6 +645,7 @@
 			fprintf(stderr, "Warning: Failed to set mark %d\n", mark);
 		}
 	}
+#endif
 
 	/* Set some SNDTIMEO to prevent blocking forever
 	 * on sends, when device is too slow or stalls. Just put limit