Running make

Hi,

I'm having this problem while I am running the make command:

/usr/bin/ld: ../extern/ENCRYPTO_utils/src/libencrypto_utils.a(thread.cpp.o): undefined reference to symbol '_ZNSt18condition_variable10notify_oneEv@@GLIBCXX_3.4.11'
//usr/lib/x86_64-linux-gnu/libstdc++.so.6: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
mains/CMakeFiles/otmain.dir/build.make:94: recipe for target 'mains/otmain' failed
make[2]: *** [mains/otmain] Error 1
CMakeFiles/Makefile2:345: recipe for target 'mains/CMakeFiles/otmain.dir/all' failed
make[1]: *** [mains/CMakeFiles/otmain.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

Any suggestions?

Regards,
Noa