compiling problem with Xcode / C++ (sous MAC)

Thomas CATTY

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Jun 20, 2011, 5:05:56 AM6/20/11

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Hi guys,

I got a problem with compiling a simple project dans Xcode just to connect to mongo via C++.
I think that all the boost or others path are now correct in Xcode

Here is the code of main.cpp and below the errors.

#include <iostream>
#include "client/dbclient.h"
using namespace mongo;

void run() {
    DBClientConnection c;
    c.connect("localhost");
}

int main() {
    try {
        run();
        cout << "connected ok" << endl;
    } catch( DBException &e ) {
        cout << "caught " << e.what() << endl;
    }
    return 0;
}

----

Building target “Tutorial” of project “Tutorial” with configuration “Debug”

Checking Dependencies

Ld /iwave360/Tutorial/build/Debug/Tutorial normal i386
    cd /iwave360/Tutorial
    setenv MACOSX_DEPLOYMENT_TARGET 10.5
    /Developer/usr/bin/g++-4.0 -arch i386 -isysroot /Developer/SDKs/MacOSX10.5.sdk -L/iwave360/Tutorial/build/Debug -L<Multiple -Lvalues> -L/Developer/SDKs/MacOSX10.5.sdk/usr/local/lib -F/iwave360/Tutorial/build/Debug -filelist /iwave360/Tutorial/build/Tutorial.build/Debug/Tutorial.build/Objects-normal/i386/Tutorial.LinkFileList -mmacosx-version-min=10.5 -o /iwave360/Tutorial/build/Debug/Tutorial
Undefined symbols:
"vtable for mongo::DBClientBase", referenced from:
      __ZTVN5mongo12DBClientBaseE$non_lazy_ptr in main.o
"mongo::asserted(char const*, char const*, unsigned int)", referenced from:
      mongo::DBConnector::recv(mongo::Message&) in main.o
"boost::system::system_category()", referenced from:
      __static_initialization_and_destruction_0(int, int)in main.o
"vtable for mongo::DBClientConnection", referenced from:
      __ZTVN5mongo18DBClientConnectionE$non_lazy_ptr in main.o
"boost::system::generic_category()", referenced from:
      __static_initialization_and_destruction_0(int, int)in main.o
      __static_initialization_and_destruction_0(int, int)in main.o
"mongo::uasserted(int, char const*)", referenced from:
      mongo::HostAndPort::HostAndPort(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)in main.o
      mongo::HostAndPort::HostAndPort(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)in main.o
"vtable for mongo::DBClientWithCommands", referenced from:
      __ZTVN5mongo20DBClientWithCommandsE$non_lazy_ptr in main.o
"vtable for mongo::DBClientInterface", referenced from:
      __ZTVN5mongo17DBClientInterfaceE$non_lazy_ptr in main.o
"mongo::DBClientConnection::_numConnections", referenced from:
      __ZN5mongo18DBClientConnection15_numConnectionsE$non_lazy_ptr in main.o
ld: symbol(s) not found
collect2: ld returned 1 exit status

----

I don't understand what happens. (any pb with the namespace mongo ?? -- I would get more errors I guess)
Thanks guys !

Thomas CATTY
06.75.67.24.71

"You only live once, but if you do it right, once is enough." - (Mae West)

Alvin Richards

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Jun 20, 2011, 5:46:24 AM6/20/11

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Were you following the instructions at

http://www.mongodb.org/display/DOCS/Building+for+OS+X?focusedCommentId=2392141#comment-2392141

-Alvin

ThomasCatty

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Jun 20, 2011, 11:49:05 AM6/20/11

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yes really.

step by step and all goes right without error message for once !

I attach a screeshot of my error messages in Xcode

maybe it will talk to you 'cause it doesn't to me and I am getting mad ! ;-(

Thanks in advance

bug.png

aaron

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Jun 20, 2011, 1:29:11 PM6/20/11

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Hi Thomas,

Generally you need to have a -l section in your g++ compile line that
will tell the linker to link to a mongodb library.

Aaron

> bug.png
> 187KViewDownload

Thomas Catty

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Jun 20, 2011, 1:31:45 PM6/20/11

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Thanks for your answer Aaron
But how Can I check and do that ?

Are you going to save my life ?
;-)

Thx again

Thomas CATTY
06.75.67.24.71

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aaron

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Jun 20, 2011, 2:11:10 PM6/20/11

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Hi Thomas,

I'd recommend that you get compilation working from the command line
first and then port to xcode. For osx you can generally follow the
linux instructions for building with the c++ driver:

<http://www.mongodb.org/pages/viewpage.action?pageId=133409>

Aaron

aaron

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Jun 20, 2011, 1:48:42 PM6/20/11

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Hi Thomas,

I'd recommend that you get compilation working from the command line

first, then try to replicate in xcode.

Take a look at this wiki page <http://www.mongodb.org/pages/
viewpage.action?pageId=133409> and the pages it links to - the
instructions for osx are basically the same as those listed for linux.

Aaron

On Jun 20, 10:31 am, Thomas Catty <catty_tho...@yahoo.fr> wrote:

Thomas CATTY

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Jun 20, 2011, 2:36:01 PM6/20/11

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I did that

g++ -I /iwave360/Tutorial/Tutorial.cpp -lboost_thread-mt -lboost_filesystem

and I got this error :

ld: library not found for -lboost_thread-mt

collect2: ld returned 1 exit status

Thomas CATTY
06.75.67.24.71

"You only live once, but if you do it right, once is enough." - (Mae West)

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Objet : [mongodb-user] Re: Re : Re: compiling problem with Xcode / C++ (sous MAC)

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aaron

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Jun 20, 2011, 2:45:25 PM6/20/11

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Which boost libraries have you installed, and where did you install
them?

> >mongodb-user...@googlegroups.com.

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Eliot Horowitz

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Jun 20, 2011, 6:26:58 PM6/20/11

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you need to add -lmongoclient

On Mon, Jun 20, 2011 at 5:35 PM, Thomas CATTY <catty_...@yahoo.fr> wrote:

and always the same errors even in command line :

macbookprototo-3:mongodb chtoms$ sudo g++ -I/usr/local/mongodb -I/opt/local/include -pthread -lboost_filesystem /iwave360/Tutorial/main.cpp

Password:

Undefined symbols:
"vtable for mongo::DBClientBase", referenced from:

__ZTVN5mongo12DBClientBaseE$non_lazy_ptr in ccYePeoV.o

"mongo::asserted(char const*, char const*, unsigned int)", referenced from:

mongo::DBConnector::recv(mongo::Message&) in ccYePeoV.o

"boost::system::system_category()", referenced from:

__static_initialization_and_destruction_0(int, int)in ccYePeoV.o

"vtable for mongo::DBClientConnection", referenced from:

__ZTVN5mongo18DBClientConnectionE$non_lazy_ptr in ccYePeoV.o

"boost::system::generic_category()", referenced from:

__static_initialization_and_destruction_0(int, int)in ccYePeoV.o
__static_initialization_and_destruction_0(int, int)in ccYePeoV.o

"mongo::uasserted(int, char const*)", referenced from:

mongo::HostAndPort::HostAndPort(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)in ccYePeoV.o

mongo::HostAndPort::HostAndPort(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)in ccYePeoV.o

"vtable for mongo::DBClientWithCommands", referenced from:

__ZTVN5mongo20DBClientWithCommandsE$non_lazy_ptr in ccYePeoV.o

"vtable for mongo::DBClientInterface", referenced from:

__ZTVN5mongo17DBClientInterfaceE$non_lazy_ptr in ccYePeoV.o

"mongo::DBClientConnection::_numConnections", referenced from:

__ZN5mongo18DBClientConnection15_numConnectionsE$non_lazy_ptr in ccYePeoV.o
ld: symbol(s) not found

collect2: ld returned 1 exit status

Thomas CATTY
06.75.67.24.71

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De : aaron <aa...@10gen.com>

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Envoyé le : Lun 20 juin 2011, 20h 45min 25s

Objet : Re: Re : [mongodb-user] Re: Re : Re: compiling problem with Xcode / C++ (sous MAC)

> >mongodb-user+unsub...@googlegroups.com.

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aaron

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Jun 20, 2011, 8:13:23 PM6/20/11

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I'm not sure if I've been seeing all the messages in this thread, but
based on what I've seen:

The -L option to g++ is used for specifying library paths. If you
used mac ports to install boost you will need to have -L/opt/local/lib
in your command line. You need to do the same for the location of
your mongo library install if it is not installed in a default link
path.

The lower case -l is used to name a library to link from one of the
paths specified by -L. You need to make sure you have the proper -l
and -L specified for all your dependencies for linking to work
correctly.

> > *"You only live once, but if you do it right, once is enough." - (Mae
> > West)*
>
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Thomas CATTY

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Jun 20, 2011, 3:05:35 PM6/20/11

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I use the "package manager setup" (http://www.mongodb.org/display/DOCS/Building+for+OS+X)

which installed the 1.46.1_0 version of Boost.

I can see files in /usr/local/include/boost (I guess these are the ones it installed or updated)

Thomas CATTY
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Envoyé le : Lun 20 juin 2011, 20h 45min 25s

Objet : Re: Re : [mongodb-user] Re: Re : Re: compiling problem with Xcode / C++ (sous MAC)

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Eliot Horowitz

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Jun 21, 2011, 11:34:11 AM6/21/11

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Did you read the instructions here:

http://www.mongodb.org/pages/viewpage.action?pageId=21266598

You're now missing: -lboost_thread

On Tue, Jun 21, 2011 at 9:06 AM, Thomas CATTY <catty_...@yahoo.fr> wrote:

thanks for your explanations Aaron.

I have been trying for many hours now ( without sucess obviously ) such command lines like below :

>sudo g++ -I/usr/local/mongodb -L/opt/local/lib -L/opt/local/include/boost -pthread -lboost_filesystem -lmongoclient /iwave360/Tutorial/main.cpp

>sudo g++ -L/usr/local/mongod -L/opt/local/lib -L/opt/local/include/boost -l/usr/local/mongodb/mongo-cxx-driver-v1.8/libmongoclient.a -pthread -lboost_filesystem -lmongoclient /iwave360/Tutorial/main.cpp

...
....

That generates many many error lines which often begin with :
Undefined symbols:
  "boost::this_thread::interruption_point()", referenced from:
   mongo::BackgroundJob::wait(unsigned int)in libmongoclient.a(background.o)
   mongo::BackgroundJob::wait(unsigned int)in libmongoclient.a(background.o)
  "boost::thread::~thread()", referenced from:

   mongo::BackgroundJob::go() in libmongoclient.a(background.o)
  "boost::detail::once_global_epoch", referenced from:
....
...

The "main.cpp" program is this we find on line to test :
---------------

#include <iostream>

#include "client/dbclient.h"

using namespace mongo;

void run() {

DBClientConnection c;

c.connect("localhost");

}

int main() {

try {

run();

cout << "connected ok" << endl;

} catch( DBException &e ) {

cout << "caught " << e.what() << endl;

}

return 0;

}

---------------

1/
   the necessary dbclient.h (for that program) is stored in /usr/local/mongod/client/ (with dbclient.o and others)

   boost is installed in /opt/local/include/boost/
   many .a and .dylib files in /opt/local/lib
   many .h files in /opt/local/include/
   mongod in /usr/local/mongod with a subdirectory inside for C++ drivers called "mongo-cxx-driver-v1.8" with "libmongoclient.a" inside

2/ what is the difference between the -I option and the -L one ?

Maybe I also missed something during the installation process...

Thanks again & again guys.

Thomas CATTY
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Thomas CATTY

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Jun 21, 2011, 11:43:11 AM6/21/11

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yes I did

because of this error messages I changed it.

ld: library not found for -lboost_thread-mt

collect2: ld returned 1 exit status

I must understand that the path to the right librairies is not found

Thomas CATTY
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De : Eliot Horowitz <elioth...@gmail.com>
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Envoyé le : Mar 21 juin 2011, 17h 34min 11s
Objet : Re: [mongodb-user] Compiling problem with Xcode / C++ (sous MAC) : sample Tutorial.cpp

Eliot Horowitz

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Jun 21, 2011, 11:44:26 AM6/21/11

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Try -lboost_thread as i said.

You seem to have a non-standard install of boost.

Thomas CATTY

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Jun 21, 2011, 9:06:41 AM6/21/11

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Thomas CATTY
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Thomas CATTY

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Jun 21, 2011, 12:08:18 PM6/21/11

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thanks really for your help

I tried to include all I can and use your options

sudo g++ -I/usr/local/mongodb/client -L/opt/local/lib -I/opt/local/include -I/opt/local/include/boost -I/usr/local/include/mongo -lboost_thread -lboost_filesystem -lmongoclient /iwave360/Tutorial/main.cpp

and always the stream of errors :

Undefined symbols:

"boost::system::system_category()", referenced from:

__static_initialization_and_destruction_0(int, int)in cc9Os82Y.o

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(dbclient.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(assert_util.o)

boost::enable_if<boost::filesystem2::is_basic_path<boost::filesystem2::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem2::path_traits> >, bool>::type boost::filesystem2::is_directory<boost::filesystem2::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem2::path_traits> >(boost::filesystem2::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem2::path_traits> const&)in libmongoclient.a(log.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(log.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(dbclient_rs.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(util.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(dbclientcursor.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(sock.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(message.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(jsobj.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(json.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(lasterror.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(syncclusterconnection.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(clientOnly.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(connpool.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(background.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(base64.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(oid.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(nonce.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(commands.o)

__static_initialization_and_destruction_0(int, int)in libmongoclient.a(md5main.o)

"_md5_finish", referenced from:

mongo::DBClientWithCommands::createPasswordDigest(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)in libmongoclient.a(dbclient.o)

mongo::DBClientWithCommands::auth(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, bool)in libmongoclient.a(dbclient.o)

mongo::BSONObj::md5() constin libmongoclient.a(jsobj.o)

do_md5_test() in libmongoclient.a(md5main.o)

"_md5_init", referenced from:

mongo::DBClientWithCommands::createPasswordDigest(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)in libmongoclient.a(dbclient.o)

mongo::DBClientWithCommands::auth(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, bool)in libmongoclient.a(dbclient.o)

mongo::BSONObj::md5() constin libmongoclient.a(jsobj.o)

do_md5_test() in libmongoclient.a(md5main.o)

"_md5_append", referenced from: