link.h: guard TLS related internals of struct link_map with _LIBC

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include/link.h

@@ -110,7 +110,7 @@ struct link_map
     char *l_name;		/* Absolute file name object was found in.  */
     ElfW(Dyn) *l_ld;		/* Dynamic section of the shared object.  */
     struct link_map *l_next, *l_prev; /* Chain of loaded objects.  */
-
+#ifdef _LIBC
 #if defined(USE_TLS) && USE_TLS
     /* Thread-local storage related info.  */
 
@@ -133,6 +133,7 @@ struct link_map
     size_t l_tls_modid;
     /* Nonzero if _dl_init_static_tls should be called for this module */
     unsigned int l_need_tls_init:1;
+#endif
 #endif
   };