Hi,
I have 'made install' the Berkeley DB library.
Sorry this is newbie question on BDB.
Thanks
Jack

The original source code from cxx_example also did not compile. What
happened?
Thanks
Jack

Hi Jack,

Let's say you are on unix, then you'd have built BDB library from the
build_unix directory using the instructions given in the documentation
(docs/index.html -> goto "Building for UNIX/POSIX systems")

Open the Makefile in build_unix and search for "Example programs for
C++". Check the name of the target for your specific example program
and build it. e.g. If you want to build excxx_example_database_load
from examples_cxx/getting_started, then use following command in
build_unix directory-
make excxx_example_database_load

Hope this helps.
Rashmi.

[root@localhost build_unix]# make excxx_example_database_load
/bin/sh ./libtool --mode=compile nocxx
-I../dist/../examples_cxx/getting_started -c -I. -I../dist/..
-D_GNU_SOURCE -D_REENTRANT -O
.../dist/../examples_cxx/getting_started/excxx_example_database_load.cpp
libtool: compile: unable to infer tagged configuration
libtool: compile: specify a tag with `--tag'
make: *** [excxx_example_database_load.lo] Error 1

Somethin' like this happened as well
Thanks
Jack

Do the following-

cd build_unix
../dist/configure --enable-cxx
make excxx_example_database_load

Rashmi.

One more dumb question. I'm just another newbie in Linux
So If I tried to compile my own project, can I just make myproject?
Thanks
Jack

I have got the same linking error as before when compiling standalone
project!
Thanks
Jack

Hi,
Back here. After specifying the absolute path of the lib, I still got
the same errors.
I'm building my own project using
g++ -o dbx -D_REENTRANT db.cpp /usr/lib/libdb4-3.a
Thanks
Jack

Jack,

One obvious problem that I see is that you are linking with C library
instead of the C++ library. Second, I don't think you'd be getting the
exact errors that you were getting earlier. The given command will
give a lot of "undefined symbol" kind of errors.

I have this sample Makefile that I wrote to compile an independent
example outside the BDB sources (I have modified to build one of the
current examples in BDB src tree). You can have a look at it to
understand what commands are required to build your program. You may
have to modify it for your own example.

###### start makefile

INCLUDES = -I. -I/usr/local/BerkeleyDB.4.3/include

..SUFFIXES: .cpp

..cpp.o:
g++ -c -g $(INCLUDES) -D_GNU_SOURCE -D_REENTRANT -O $< -fPIC
-DPIC -o $@

SRC = SequenceExample.cpp
OBJ = $(addsuffix .o, $(basename $(SRC)))

seq_example: $(OBJ)
g++ -O -g -o $@ $(OBJ) \
-L/usr/local/BerkeleyDB.4.3/lib -ldb_cxx-4.3 \
-Wl,--rpath -Wl,/usr/local/BerkeleyDB.4.3/lib

clean:
rm seq_example $(OBJ)

###### end makefile

Hope this helps.
Rashmi.

Jack wrote:

Dear Rashmi,
Thank you so much. You're greatly helpful indeed, I appreciate it
Thanks
Jack