--- src/include/lib3270/config.h.in	2017-01-20 15:37:46.462843502 -0200
+++ src/include/lib3270/config.h.in	2017-01-24 15:19:45.547022420 -0200
@@ -44,7 +44,7 @@
 	#undef HAVE_SYSLOG
 	#undef HAVE_DBUS
 	#undef HAVE_VASPRINTF
-	#undef HAVE_INET_NTOP
+	#define HAVE_INET_NTOP
 
 	#undef HAVE_ICONV
 	#undef ICONV_CONST