`Error undefined reference to `pthread_create'. How to fix
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<div class="content__item-top-div"> <a class="content__item-top-name" href="#!">Eugene Ordinary</a><span class="content__item-top-p">2018-08-20 21:48:52</span></div>
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<div class="content__item-row dn"> <a href="#!"><b>Eugene Ordinary</b>,</a> 2018-08-20 21:48:52</div>
<p class="content__item-title large">Error undefined reference to `pthread_create'. How to fix?</p>
<p class="content__item-detail sm">
KDevelop fails to build a program with a stream. <br>
The module is connected The
thread is called
When trying to build, I get the following error:<br><code class="cpp hljs"><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span> <span class="hljs-meta-string"><thread></span></span></code><br><code class="cpp hljs"><span class="hljs-function">thread <span class="hljs-title">mythr</span><span class="hljs-params">(myfunc2)</span></span>;</code><br><blockquote>/home/evg/projects/myprog2/build> make -j1 -lpthread <br>
-- Configuring done <br>
-- Generating done <br>
-- Build files have been written to: /home/evg/projects/myprog2/build <br>
[ 50%] Linking CXX executable myprog2 <br>
CMakeFiles/myprog2.dir/main.cpp.o: In function `std::thread::thread(void (&)())': <br>
/usr/include/c++/7/thread:122: undefined reference to ` pthread_create' <br>
collect2: error: ld returned 1 exit status <br>
make[2]: *** [CMakeFiles/myprog2.dir/build.make:95: myprog2] Error 1 <br>
make[1]: *** [CMakeFiles/Makefile2:68 : CMakeFiles/myprog2.dir/all] Error 2 <br>
make: *** [Makefile:130: all] Error 2 <br>
*** Error: Exit code: 2 ***</blockquote><br>
How to fix? How to connect the thread module?
</p>
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<div class="content__item-img large name-color-J"><span>J</span></div><span class="answer__name"><a href="#!">jcmvbkbc</a>, 2018-08-20 <br/> @evgeniy8086</span>
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<p class="answer__detail"><blockquote>make -j1 -lpthread</blockquote><br>
- instead of -lpthread it is better to write -pthread <br>
- the -pthread option must be passed not to make but to gcc</p>
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