win32: Fix build with IPv6 disabled.

* include/arch/win32/apr_arch_misc.h:
  (if_nametoindex, if_indextoname): Declare only if HAVE_IF_NAMETOINDEX/
   HAVE_IF_INDEXTONAME.

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1902577 13f79535-47bb-0310-9956-ffa450edef68
1 file changed