+ AC_SUBST([HAVE_ARPA_INET_H])
+ dnl <arpa/inet.h> is always overridden, because of GNULIB_POSIXCHECK.
+ gl_CHECK_NEXT_HEADERS([arpa/inet.h])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use.
+ gl_WARN_ON_USE_PREPARE([[
+/* On some systems, this header is not self-consistent. */
+#ifndef __GLIBC__
+# include <sys/socket.h>
+#endif
+#include <arpa/inet.h>
+ ]], [inet_ntop inet_pton])
+])
+
+dnl Unconditionally enables the replacement of <arpa/inet.h>.
+AC_DEFUN([gl_REPLACE_ARPA_INET_H],
+[
+ dnl This is a no-op, because <arpa/inet.h> is always overridden.
+ :