problem compiling cdec

[Jacob Eisenstein]

Hi, I'm unable to compile cdec. I cloned the git repository and ran:

cmake 'Unix Makefiles'

make -J 4

Here's where I got into trouble:

Linking CXX executable dump_counts

[ 83%] [ 83%] Building CXX object mteval/CMakeFiles/fast_score.dir/fast_score.cc.o

Building CXX object klm/lm/builder/CMakeFiles/lmplz.dir/lmplz_main.cc.o

/usr/bin/ld: ../../util/stream/libklm_util_stream.a(chain.cc.o): undefined reference to symbol 'sem_post@@GLIBC_2.2.5'

/lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line

collect2: error: ld returned 1 exit status

klm/lm/builder/CMakeFiles/dump_counts.dir/build.make:124: recipe for target 'klm/lm/builder/dump_counts' failed

make[2]: *** [klm/lm/builder/dump_counts] Error 1

CMakeFiles/Makefile2:815: recipe for target 'klm/lm/builder/CMakeFiles/dump_counts.dir/all' failed

make[1]: *** [klm/lm/builder/CMakeFiles/dump_counts.dir/all] Error 2

Any hints? I'm running ubuntu 14.04, I think I have the latest boost, flex, gcc, etc.

Thanks!

-Jacob

[Chris Dyer]

Kenneth, have you seen errors like this before?

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