linknx: fix musl compatibility

Signed-off-by: Othmar Truniger <github@truniger.ch>

net/linknx/patches/010-musl-compat

@@ -0,0 +1,10 @@
+--- a/src/eibclient.c	2007-10-11 01:55:31.000000000 +0200
++++ b/src/eibclient.c	2015-06-27 22:18:01.433296921 +0200
+@@ -32,6 +32,7 @@
+ #include <netinet/in.h>
+ #include <netdb.h>
+ #include <errno.h>
++#include <string.h>
+ 
+ #include "config.h"
+ 

net/linknx/patches/012-fix-linknx.cpp

@@ -0,0 +1,11 @@
+--- a/src/linknx.cpp	2012-06-04 22:12:13.000000000 +0200
++++ b/src/linknx.cpp	2015-06-27 22:35:23.705721355 +0200
+@@ -136,7 +136,7 @@
+     if (errno)
+         printf (": %s\n", strerror (errno));
+     else
+-        printf ("\n", strerror (errno));
++        printf ("\n");
+     exit (1);
+ }
+