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I am trying to build PyVlfeat and it is failing with the following error.

/usr/bin/ld: cannot find -lboost_python-mt-py34
collect2: error: ld returned 1 exit status
error: command 'c++' failed with exit status 1

I have seen threads mentioning similar issue, but none of those seem to provide a proper solution and they seem to be quite old.

The issue here is that the installation script refers to "-lboost_python-mt-py26" option (parameter?) at one point. Some threads seem to reach a solution by changing their python interpreter version. (eg: py27 instead of py26).

However this doesn't work for me and I am unable to correct this reference. I have installed Boost by the command "sudo apt-get install libboost-all-dev".

How to fix this problem?

  • possible duplicate of Cannot find boost-thread-mt library – user.dz Nov 6 '14 at 13:08
  • As per the answer mentioned there, I have changed my reference to "-lboost_python-py27" and this time it seems to have compiled successfully. Thanks. However, I had python 2.7 and 3.4 in my system. How to find the proper boost libraries in my system so that I can use the correct one? If somebody can explain this in an answer, it will be very useful as I don't think much information regarding this is available in net. – Erdnase Nov 6 '14 at 14:23
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    It depends on which Python version you are using: for python2 use -lboost_python-py27, for python3 use -lboost_python-py34. See wiki.python.org/moin/Python2orPython3 . – user.dz Nov 6 '14 at 15:33
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As it was mentioned, changing the reference to "-lboost_python-py27" helps to solve the problem.

The source of the information is Cannot find boost-thread-mt library

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