Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>:

The patch below actuallly consists of two patches:
1) moving librpc to c/src/librpc similar to what has been done to librtems++
2) reworked configure scripts, many safety and dependency checks added to
aclocal/*.m4 macros + configuration fixes.

To apply:

mkdir c/src/librpc
mkdir c/src/librpc/src
cp c/src/lib/librpc/*.c c/src/librpc/src
cp c/src/lib/librpc/Makefile.in c/src/librpc/src
mkdir c/src/librpc/include
mkdir c/src/librpc/include/rpc
cp c/src/lib/include/rpc/* c/src/librpc/include/rpc
patch -p1 < ../rtems-rc-19990820-7.diff
rm -rf c/src/lib/librpc
rm -rf c/src/lib/include/rpc
./autogen

The additional checks in aclocal/*m4 macros add rather restrictive, sometimes
unnecessarily restrictive constraints on the sequence of how macros can be
used in a configure.in script. Adding them has let my problems with some more
complicated configuration options vanish. Apparently some macros had not been
in the required order .

----

Now I still get some linking errors for some cpus and bsps, esp when linking
cdtest, but also at other locations:

e.g. this happens for mips64orion/p4600:

# make[5]: Entering directory
`/lfs/poseidon/users/rtems/src/multi/build/mips64orion-rtems/c/p4600/tests/samples/hello'

/opt/rtems/bin/mips64orion-rtems-gcc --pipe -B../../../../../../p4600/lib/
-specs bsp_specs -qrtems -DP4000 -DCPU_R4000 -DP3_DIAG -D_R4000 -D__mips=3
-mcpu=4600 -G0   -I../../../../../../p4600/lib/include/networking  -g -Wall
-ansi -fasm  -O4 -fomit-frame-pointer     -o o-p4600/hello.exe
o-p4600/init.o ../../../../../../p4600/lib/no-dpmem.rel
../../../../../../p4600/lib/no-event.rel
../../../../../../p4600/lib/no-msg.rel ../../../../../../p4600/lib/no-mp.rel
../../../../../../p4600/lib/no-part.rel
../../../../../../p4600/lib/no-signal.rel
../../../../../../p4600/lib/no-timer.rel
../../../../../../p4600/lib/no-rtmon.rel
/opt/rtems/mips64orion-rtems/lib/libc.a(dtoa.o): In function `_dtoa_r':
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
collect2: ld returned 1 exit status

# mips64orion-rtems-gcc -v
Reading specs from /opt/rtems/lib/gcc-lib/mips64orion-rtems/2.95.1/specs
gcc version 2.95.1 19990816 (release)

# mips64orion-rtems-ld -v
GNU ld version 2.9.5 (with BFD 2.9.5)

1 files changed, 0 insertions, 124 deletions

diff --git a/c/src/lib/librpc/svc_auth.c b/c/src/lib/librpc/svc_auth.c
deleted file mode 100644
index e1943ace8f..0000000000
--- a/c/src/lib/librpc/svc_auth.c
+++ /dev/null
@@ -1,124 +0,0 @@
-
-#if !defined(lint) && defined(SCCSIDS)
-static char sccsid[] = "@(#)svc_auth.c	2.1 88/08/07 4.0 RPCSRC; from 1.19 87/08/11 Copyr 1984 Sun Micro";
-#endif
-/*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part.  Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- * 
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- * 
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California  94043
- */
-
-/*
- * svc_auth_nodes.c, Server-side rpc authenticator interface,
- * *WITHOUT* DES authentication.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
-#include <rpc/rpc.h>
-
-/*
- * svcauthsw is the bdevsw of server side authentication. 
- * 
- * Server side authenticators are called from authenticate by
- * using the client auth struct flavor field to index into svcauthsw.
- * The server auth flavors must implement a routine that looks  
- * like: 
- * 
- *	enum auth_stat
- *	flavorx_auth(rqst, msg)
- *		register struct svc_req *rqst; 
- *		register struct rpc_msg *msg;
- *
- */
-
-enum auth_stat _svcauth_null();		/* no authentication */
-enum auth_stat _svcauth_unix();		/* unix style (uid, gids) */
-enum auth_stat _svcauth_short();	/* short hand unix style */
-
-static struct {
-	enum auth_stat (*authenticator)();
-} svcauthsw[] = {
-  {
-	_svcauth_null,			/* AUTH_NULL */
-#ifdef MR
-	_svcauth_unix,			/* AUTH_UNIX */
-	_svcauth_short			/* AUTH_SHORT */
-#endif
-  }
-};
-
-#ifdef MR
-#define	AUTH_MAX	2		/* HIGHEST AUTH NUMBER */
-#else
-#define	AUTH_MAX	0		/* HIGHEST AUTH NUMBER */
-#endif
-
-
-/*
- * The call rpc message, msg has been obtained from the wire.  The msg contains
- * the raw form of credentials and verifiers.  authenticate returns AUTH_OK
- * if the msg is successfully authenticated.  If AUTH_OK then the routine also
- * does the following things:
- * set rqst->rq_xprt->verf to the appropriate response verifier;
- * sets rqst->rq_client_cred to the "cooked" form of the credentials.
- *
- * NB: rqst->rq_cxprt->verf must be pre-alloctaed;
- * its length is set appropriately.
- *
- * The caller still owns and is responsible for msg->u.cmb.cred and
- * msg->u.cmb.verf.  The authentication system retains ownership of
- * rqst->rq_client_cred, the cooked credentials.
- *
- * There is an assumption that any flavour less than AUTH_NULL is
- * invalid.
- */
-enum auth_stat
-_authenticate(rqst, msg)
-	register struct svc_req *rqst;
-	struct rpc_msg *msg;
-{
-	register int cred_flavor;
-
-	rqst->rq_cred = msg->rm_call.cb_cred;
-	rqst->rq_xprt->xp_verf.oa_flavor = _null_auth.oa_flavor;
-	rqst->rq_xprt->xp_verf.oa_length = 0;
-	cred_flavor = rqst->rq_cred.oa_flavor;
-	if ((cred_flavor <= AUTH_MAX) && (cred_flavor >= AUTH_NULL)) {
-		return ((*(svcauthsw[cred_flavor].authenticator))(rqst, msg));
-	}
-
-	return (AUTH_REJECTEDCRED);
-}
-
-enum auth_stat
-_svcauth_null(/*rqst, msg*/)
-	/*struct svc_req *rqst;
-	struct rpc_msg *msg;*/
-{
-
-	return (AUTH_OK);
-}