ifstatus: fix musl build

srcpkgs/ifstatus/patches/fix-musl.patch

@@ -0,0 +1,12 @@
+--- a/Main.h.orig	2018-01-15 23:45:03.380195836 +0100
++++ b/Main.h	2018-01-15 23:45:44.596544507 +0100
+@@ -48,7 +48,9 @@
+ #include <sys/ioctl.h>
+ 
+ #include <arpa/inet.h>
++#ifdef __GLIBC__
+ #include <netinet/if_ether.h>
++#endif
+ #include <linux/netdevice.h> 
+ #include <netinet/in.h>
+