libuuid: -Werror=implicit-function-declaration

packages/libuuid/gen_uuid.c.patch

@@ -0,0 +1,20 @@
+diff -u -r ../libuuid-1.0.3/gen_uuid.c ./gen_uuid.c
+--- ../libuuid-1.0.3/gen_uuid.c	2014-08-12 10:07:18.000000000 +0200
++++ ./gen_uuid.c	2017-07-07 01:46:59.528994512 +0200
+@@ -38,6 +38,8 @@
+  */
+ #define _SVID_SOURCE
+ 
++#include "c.h"
++
+ #ifdef _WIN32
+ #define _WIN32_WINNT 0x0500
+ #include <windows.h>
+@@ -91,7 +97,6 @@
+ #include "uuidP.h"
+ #include "uuidd.h"
+ #include "randutils.h"
+-#include "c.h"
+ 
+ #ifdef HAVE_TLS
+ #define THREAD_LOCAL static __thread