You have provided only the function declarations in the include files. To
generate the binaries, you also need to provide function definitions.
Typically, this is done by linking the binary against the shared library
that provides the definitions. For example, if the definitions are in
libpacket.so, then you would need to modify the ilnk command to
additionally include "-lpacket" at the end.
On Sun, Nov 16, 2014 at 3:03 AM, Nitinder Mohan <[email protected]>
wrote:
> Dear All,
>
> Greetings. I was trying to change the code of dmtcp_coordinator to include
> some more packets while connecting to a node. These are the steps that I
> did:
>
> 1. Include external header files in dmtcp_coordinator.cpp
> i.e.
>
> #include "packet.h"
> #include "uri.h"
>
> 2. placed "packet.h" and "uri.h" files to dmtcp-master/include folder.
> These are also present in system "usr/local/include" for global include.
>
> 3. Used functions packet_create() and packet_connect() in
> dmtcp_coordinator.cpp. Both these functions have been defined in packet.h
> header file.
>
> 4. On terminal:
> i) ./configure
> ii) sudo make
>
> This is giving me the following error:
>
> /home/iiitd/dmtcp-master/src/dmtcp_coordinator.cpp:1923: undefined
> reference to `packet_create()'
> /home/iiitd/dmtcp-master/src/dmtcp_coordinator.cpp:1931: undefined
> reference to `packet_connect(packet*, char const*)'
> collect2: ld returned 1 exit status
> make[2]: *** [../bin/dmtcp_coordinator] Error 1
> make[2]: Leaving directory `/home/iiitd/dmtcp-master/src'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/home/iiitd/dmtcp-master/src'
> make: *** [dmtcp] Error 2
>
> I have made sure that the code is syntactically correct and the parameters
> in the functions have been used correctly.
>
> Any tips would be highly valuable.
>
> Thanks and Regards
>
> Nitinder Mohan
> MTech (CE) IIIT Delhi
> http://home.iiitd.edu.in/~nitinder1369/
>
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