It is intended to provide definitions and prototypes needed by an
application. */
-# if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-# endif
-
#ifndef _GL_NETDB_H
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+
#if @HAVE_NETDB_H@
/* The include_next requires a split double-inclusion guard. */
/* The definition of _GL_ARG_NONNULL is copied here. */
+/* The definition of _GL_WARN_ON_USE is copied here. */
+
/* Declarations for a platform that lacks <netdb.h>, or where it is
incomplete. */
# define NI_NUMERICSERV 2
# endif
-#endif /* @GNULIB_GETADDRINFO@ */
+#elif defined GNULIB_POSIXCHECK
+
+# undef getaddrinfo
+# if HAVE_RAW_DECL_GETADDRINFO
+_GL_WARN_ON_USE (getaddrinfo, "getaddrinfo is unportable - "
+ "use gnulib module getaddrinfo for portability");
+# endif
+
+# undef freeaddrinfo
+# if HAVE_RAW_DECL_FREEADDRINFO
+_GL_WARN_ON_USE (freeaddrinfo, "freeaddrinfo is unportable - "
+ "use gnulib module getaddrinfo for portability");
+# endif
+
+# undef gai_strerror
+# if HAVE_RAW_DECL_GAI_STRERROR
+_GL_WARN_ON_USE (gai_strerror, "gai_strerror is unportable - "
+ "use gnulib module getaddrinfo for portability");
+# endif
+
+# undef getnameinfo
+# if HAVE_RAW_DECL_GETNAMEINFO
+_GL_WARN_ON_USE (getnameinfo, "getnameinfo is unportable - "
+ "use gnulib module getaddrinfo for portability");
+# endif
+
+#endif
#endif /* _GL_NETDB_H */
#endif /* _GL_NETDB_H */