* config.make.in (weak-symbols): Variable removed.

* config.make.in (weak-symbols): Variable removed.

	* configure.in (--with-weak-symbols): Option removed.
	(NO_UNDERSCORES, HAVE_ASM_WEAK_DIRECTIVE, HAVE_ASM_WEAKEXT_DIRECTIVE):
	New tests.
	* config.h.in (HAVE_WEAK_SYMBOLS): #undef removed.
	(NO_UNDERSCORES, HAVE_ASM_WEAK_DIRECTIVE, HAVE_ASM_WEAKEXT_DIRECTIVE):
	New #undefs.
	* libc-symbols.h: Use them instead of HAVE_WEAK_SYMBOLS.

	* inet/inet_lnaof.c: Use u_int32_t instead of u_long.
	* inet/inet_mkadr.c: Likewise.
	* inet/inet_net.c: Likewise.
	* inet/inet_netof.c: Likewise.
	* inet/rcmd.c: Likewise.
	* inet/arpa/inet.h: Likewise.
	* inet/netinet/in.h: Likewise.
	* inet/netinet/tcp.h: Likewise.
	* inet/protocols/rwhod.h: Likewise.
	* inet/protocols/talkd.h: Likewise.
	* resolv/inet_addr.c: Likewise.

	* sunrpc/rpc/xdr.h (IXDR_GET_LONG, IXDR_PUT_LONG): change casts to
 	u_int32_t (instead of u_long).