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, 57 deletions

diff --git a/c/src/lib/librpc/Makefile.in b/c/src/lib/librpc/Makefile.in
deleted file mode 100644
index 3cc74fa309..0000000000
--- a/c/src/lib/librpc/Makefile.in
+++ /dev/null
@@ -1,57 +0,0 @@
-#
-#  $Id$
-#
-
-@SET_MAKE@
-srcdir = @srcdir@
-top_srcdir = @top_srcdir@
-top_builddir = .
-
-RTEMS_ROOT = @RTEMS_ROOT@
-PROJECT_ROOT = @PROJECT_ROOT@
-
-VPATH = @srcdir@
-
-LIBNAME = librpc.a
-LIB = ${ARCH}/${LIBNAME}
-
-# C and C++ source names, if any, go here -- minus the .c or .cc
-C_PIECES = rpc_callmsg rpc_prot svc svc_auth svc_udp xdr xdr_array xdr_mem
-C_FILES = $(C_PIECES:%=%.c)
-C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)
-
-SRCS = $(C_FILES)
-OBJS = $(C_O_FILES)
-
-include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
-include $(RTEMS_ROOT)/make/lib.cfg
-
-INSTALL_CHANGE = @INSTALL_CHANGE@
-
-#
-# Add local stuff here using +=
-#
-
-DEFINES +=
-CPPFLAGS +=
-CFLAGS += $(LIBC_DEFINES)
-
-#
-# Add your list of files to delete here.  The config files
-#  already know how to delete some stuff, so you may want
-#  to just run 'make clean' first to see what gets missed.
-#  'make clobber' already includes 'make clean'
-#
-
-CLEAN_ADDITIONS += $(LIB)
-CLOBBER_ADDITIONS +=
-
-all: ${ARCH} $(LIB)
-	$(INSTALL_VARIANT) -m 644 ${LIB} $(PROJECT_RELEASE)/lib
-
-$(LIB): $(SRCS) ${OBJS}
-	$(make-library)
-
-Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
-	cd $(top_builddir) \
-	 && CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status