eina: fix compilation warning on _WIN32 due missing strndup()

Eina.h will include Evil.h, but those using direct include of internal
headers must include it as well.

src/lib/eina/eina_main.c

@@ -46,6 +46,10 @@
 #include <mcheck.h>
 #endif
 
+#ifdef _WIN32
+#include "Evil.h"
+#endif
+
 #include "eina_lock.h"
 #include "eina_config.h"
 #include "eina_private.h"

src/lib/eina/eina_ustrbuf.c

@@ -2,6 +2,10 @@
 # include "config.h"
 #endif
 
+#ifdef _WIN32
+#include "Evil.h"
+#endif
+
 #include "eina_strbuf_common.h"
 #include "eina_unicode.h"
 #include "eina_ustrbuf.h"

src/lib/eina/eina_xattr.c

@@ -32,6 +32,10 @@
 
 #include <fcntl.h>
 
+#ifdef _WIN32
+#include "Evil.h"
+#endif
+
 #include "eina_config.h"
 #include "eina_private.h"