--- vpnc-0.5.3.orig/sysdep.h	2008-11-19 21:36:12.000000000 +0100
+++ vpnc-0.5.3/sysdep.h	2013-12-23 14:13:51.000000000 +0100
@@ -37,7 +37,7 @@ int tun_read(int fd, unsigned char *buf,
 int tun_get_hwaddr(int fd, char *dev, uint8_t *hwaddr);
 
 /***************************************************************************/
-#if defined(__linux__) || defined(__GLIBC__)
+#if defined(__GLIBC__)
 #include <error.h>
 
 #define HAVE_VASPRINTF 1