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Re: MathLink - Linux - Calling the Kernel from External Program - undefined reference to `shm_open'

  • To: mathgroup at smc.vnet.net
  • Subject: [mg114172] Re: MathLink - Linux - Calling the Kernel from External Program - undefined reference to `shm_open'
  • From: Klemen Dovrtel <klemen_dovrtel at yahoo.com>
  • Date: Fri, 26 Nov 2010 05:27:20 -0500 (EST)

Thank you! Now it linked with no problem and the demo works fine :)
Regards
Klemen

--- On Thu, 11/25/10, Patrick Scheibe <pscheibe at trm.uni-leipzig.de> wrote:

> From: Patrick Scheibe <pscheibe at trm.uni-leipzig.de>
> Subject: Re: [mg114140] MathLink - Linux - Calling the Kernel from Extern=
al Program - undefined reference to `shm_open'
> To: "Klemen Dovrtel" <klemen_dovrtel at yahoo.com>
> Cc: mathgroup at smc.vnet.net
> Date: Thursday, November 25, 2010, 1:05 PM
> Hi,
>
> you forgot to linke the right libraries
>
> -lm -lpthread -lrt
>
> as described in the MathLink tutorial
> tutorial/MathLinkDeveloperGuide-UnixOverview
>
> Cheers
> Patrick
>
> On Nov 25, 2010, at 11:56 AM, Klemen Dovrtel wrote:
>
> > Hello everybody,
> >
> > I would like to test a simple program i found in a
> MathLink tutorial (http://www.edenwaith.com/development/tutorials/mathlin=
k/ML_Tut.pdf).
> I added the path to Mathematica libs and headers, but when i
> compile the code, i get the "undefined reference to
> `shm_open'" error (and some other errors). Any idea why is
> that? I searched the Archives and I couldn't find such
> problem.
> >
> > I tried to include the shm.h header i found
> (/usr/include/bits/shm.h, /usr/include/linux/shm.h,
> /usr/include/sys/shm.h), but no luck.
> >
> > I am using Ubuntu 10.04 and Mathematica 7.
> >
> > Best Regards
> > Klemen
> >
> >
> >
> ------------------------------------------------------------------
> > CODE
> >
> > #include <stdio.h>
> > #include "mathlink.h"
> > #include <shm.h>
> >
> >
> > int main(int argc, char * argv[ ])
> > {
> >     int i, j, sum;
> >     MLINK lp;
> >     int pkt;
> >     MLEnvironment env;
> >    
> >     printf( "Enter two integers:\n\t"
> );
> >     scanf( "%d %d", &i, &j);
> >    
> >     env == MLInitialize(NULL);
> >     if(env ==== NULL) return 1;
> >     lp == MLOpen(argc, argv);
> >     if(lp ==== NULL) return 1;
> >    
> >     /* Send Plus[i, j] */
> >     MLPutFunction(lp, "Plus", 2);
> >         MLPutInteger(lp,
> i);
> >         MLPutInteger(lp,
> j);
> >     MLEndPacket(lp);
> >    
> >     /* skip any packets before the
> first ReturnPacket */
> >     while (MLNextPacket(lp) !==
> RETURNPKT) MLNewPacket(lp);
> >    
> >     /* inside the ReturnPacket we
> expect an integer */
> >     MLGetInteger(lp, &sum);
> >    
> >     printf( "sum == %d\n", sum);
> >     MLClose(lp);
> >     MLDeinitialize(env);
> >     return 0;
> > }
> >
> >
> ------------------------------------------------------------------
> > COMPILER ERRORS
> >
> > ----------Build Started--------
> > /bin/sh -c '"make"  -j 2 -f "math_wsp.mk"'
> > ----------Building project:[ mathematica1 - Debug
> ]----------
> > make[1]: Entering directory `/home/klemen/c++/math'
> > make[1]: Leaving directory `/home/klemen/c++/math'
> > make[1]: Entering directory `/home/klemen/c++/math'
> > gcc -c  "/home/klemen/c++/math/main.c" -g 
> -o ./Debug/main.o "-I." "-I."
> "-I/usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/Develope=
rKit/Linux/CompilerAdditions"
> "-I/usr/include/sys/"
> > gcc -o ./Debug/mathematica1 ./Debug/main.o  "-L."
> "-L/usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/Develope=
rKit/Linux/CompilerAdditions" 
> -lML32i3 -lML32i3 
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `shm_open'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `sem_init'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `sem_unlink'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `sem_close'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `sem_destroy'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `shm_unlink'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `pthread_create'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `sem_post'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `sem_trywait'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `sem_open'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `sem_wait'
> >
> /usr/local/Wolfram/Mathematica/7.0/SystemFiles/Links/MathLink/DeveloperKi=
t/Linux/CompilerAdditions/libML32i3.so:
> undefined reference to `pthread_join'
> > collect2: ld returned 1 exit status
> > make[1]: *** [Debug/mathematica1] Error 1
> > make[1]: Leaving directory `/home/klemen/c++/math'
> > make: *** [All] Error 2
> > ----------Build Ended----------
> > 0 errors, 0 warnings
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>


     


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