--- a/src/jdk.jdwp.agent/unix/native/libjdwp/util_md.h	Fri Sep 21 18:57:18 2018 +0200
+++ b/src/jdk.jdwp.agent/unix/native/libjdwp/util_md.h	Wed Sep 26 14:28:37 2018 +0200
@@ -33,7 +33,7 @@
 #include <sys/types.h>
 #ifdef _ALLBSD_SOURCE
 #include <machine/endian.h>
-#elif __linux__
+#elif defined(__linux__)
 #include <endian.h>
 #endif