--- old/src/jdk.net/linux/native/libextnet/LinuxSocketOptions.c	2018-07-24 20:32:40.000000000 +0100
+++ new/src/jdk.net/linux/native/libextnet/LinuxSocketOptions.c	2018-07-24 20:32:39.000000000 +0100
@@ -31,6 +31,7 @@
 #include <netinet/tcp.h>
 #include <netinet/in.h>
 #include "jni_util.h"
+#include "net_util_md.h"
 #include "jdk_net_LinuxSocketOptions.h"
 
 /*
@@ -86,7 +87,7 @@
 (JNIEnv *env, jobject unused) {
     int one = 1;
     int rv, s;
-    s = socket(PF_INET, SOCK_STREAM, 0);
+    s = NET_Socket(PF_INET, SOCK_STREAM, 0);
     if (s < 0) {
         return JNI_FALSE;
     }
@@ -103,7 +104,7 @@
 static jint socketOptionSupported(jint sockopt) {
     jint one = 1;
     jint rv, s;
-    s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
+    s = NET_Socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
     if (s < 0) {
         return 0;
     }