File radvd-configure.patch of Package radvd

Index: radvd-2.11/configure.ac
===================================================================
--- radvd-2.11.orig/configure.ac
+++ radvd-2.11/configure.ac
@@ -47,7 +47,9 @@ you must specify it with --target on the
 esac
 
 dnl Determine CC and preset CFLAGS
-AC_PROG_CC_C99
+AC_PROG_CC_STDC
+AC_USE_SYSTEM_EXTENSIONS
+AC_SYS_LARGEFILE
 AC_PROG_RANLIB
 
 AC_ARG_WITH([check], AS_HELP_STRING([--without-check], [Build without check unit testing framework]),[],[with_check=no])