CMake Error: CMake can not determine linker language for target:

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Hi,

I am trying to create wireshark dissector plugin. I have referred README.plugins file. I have to create plugin using custom extension. I followed all the steps mentioned in README.plugins upto 3.1. But i am getting error as follows,

-- Configuring done
CMake Error at cmake/modules/WiresharkPlugin.cmake:32 (add_library):
  Cannot find source file:

    packet-75f_wirless.C

  Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp
  .hxx .in .txx
Call Stack (most recent call first):
  plugins/75f_wireless/CMakeLists.txt:55 (add_plugin_library)

CMake Error: CMake can not determine linker language for target: 75f_wirless
-- Generating done
-- Build files have been written to: C:/Development/wireshark

So let me know how can remove this linker error.

Thanks, Nilesh

asked 2018-01-25 20:53:56 +0000

19.9k

Guy Harris

updated 2018-01-25 22:37:37 +0000

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So what is the name of your source code file?

Guy Harris (2018-01-25 22:38:25 +0000) edit

Source code file: - packet-75f_wireless.C plugin folder name: - 75f_wireless

nileshbhadule (2018-01-26 04:54:26 +0000) edit

Which version of Wireshark are you attempting to build with?

grahamb (2018-01-26 10:32:29 +0000) edit

Its 2.4.2.

nileshbhadule (2018-01-26 13:13:29 +0000) edit

Is the capital C causing grief?

Anders (2018-01-26 13:47:21 +0000) edit

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Note the spelling of the filename in error message, assuming it was correctly transcribed:

Cannot find source file:
    packet-75f_wirless.C

Do you have a typo in the plugin CMakeLists.txt, misspelling the source file name?

23.8k

grahamb

answered 2018-01-26 13:28:47 +0000

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It was incorrect spelling. So it got resolved.

Thank you very much.

Thanks, Nilesh.

nileshbhadule (2018-01-26 16:56:34 +0000) edit

I've fixed up the comments and converted it to an answer with your response. Please accept the answer to let others know what the problem was by clicking the checkmark next to the answer.

grahamb (2018-01-26 17:43:02 +0000) edit

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Use the statement add_plugin_library(75f_wireless) or add_plugin_library(75f_wireless epan) for Wireshark 2.4 and Wireshark developmen version respecitvely.

13.7k

Jaap

answered 2018-01-26 12:20:12 +0000

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Are we missing a docs update for the recent changes?

grahamb (2018-01-26 12:33:22 +0000) edit

add_plugin_library call is already there in CMakeList.txt in plugin/75f_wireless folder. I have followed gryphon example as mentioned in README.plugins. Thanks, Nilesh

nileshbhadule (2018-01-26 13:15:42 +0000) edit

@grahamb: I hope not, I've worked on README.plugins in master quite a bit.

@nileshbhadule: Sounds oke. Could you post (on pastebin or something) a directory listing of your plugin directoryand the contents of your plugins CMakeLists.txt file.?

Jaap (2018-01-26 15:23:27 +0000) edit

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