how can I link gmp library to my ns3?

[Jenny Lee]

I am a newbird. I am now trying to add gmp library to my ns3.

I simply changed this file ns-3/src/ndnSIM/examples/ndn-simple.cpp to do my experiment. So I changed the wscript file in ns-3/src/ndnSIM/examples/wscript as follows:

def configure(conf):

    conf.env.append_value("LINKFLAGS", ["-L/usr/local/lib/gmp.a","-Lgmp"])

    conf.env.append_value("LIB", ["gmp"])

did not linked successfully, then changed like this:

def build(bld):

    bld.env.append_value("CXXFLAGS", "-I/usr/local/include")

    bld.env.append_value("LINKFLAGS", ["-L/usr/local/lib"])

    bld.env.append_value("LIB", ["gmp"])

still not linked.ε=(´ο｀*)))

can anyone tell me what to do? thank you so much!

[Tommaso Pecorella]

Hi,

no idea, but try to follow this:

https://www.nsnam.org/wiki/HOWTO_use_ns-3_with_other_libraries

Hope it helps,

T.

[Jenny Lee]

Hey, thanks a lot for the attention. My problem has been solved. I thought it was very difficult, but it tends out to be my careless mistakes.

I copyed the gmp.so.1 file into the /usr/lib file, and used a simple code to solve my problem. ε=(´ο｀*)))

 obj.env.append_value('LIB', 'gmp')
really embarrassed. hope my experience can save others time.

在 2017年11月24日星期五 UTC+8上午5:55:50，Tommaso Pecorella写道：

[madhurima buragohain]

I have tried the same way, but it is not working.

Following error is coming.

n function `main':

/root/Desktop/ndn-cxx/ndnSIM/Lixia/ns-3/build/../scratch/scratch-simulator.cc:28: undefined reference to `__gmpz_init'

collect2: error: ld returned 1 exit status

Could you please post the wscript file as a whole so that i can match with mine.

Thanking You,

Madhurima Buragohain

Indian Institute of Technology, Guwahati

[Isaac Osunkunle]

https://stackoverflow.com/questions/12066279/using-c-libraries-for-c-programs

 To use C library function use extern "C" as below in your .cpp program , myprog.cpp

extern "C" {
    // C Function call
    cfunc();
}

int main()
{
    cfunc();
    return 0;
}

[ningchun liu]

Hi，I meet the same problem. Have you solve it?

在 2018年3月15日星期四 UTC+8下午8:39:58，madhurima buragohain写道：

[ningchun liu]

Hi，I meet the same problem. When I follow these steps from your post, the gmp and pbc libraries are still not linked.Have you solve it?

在 2017年11月23日星期四 UTC+8下午6:09:40，Jenny Lee写道：