[DSO missing from command line] gcc-c++ error

[Segher Boessenkool]

On Fri, Sep 20, 2019 at 01:42:21PM +0300, Vassilena Treneva wrote:
> I am using the same versions of gcc-c++ and glibc (gcc-c++ 4.8.5 & glibc
> 2.17) on RHEL7 and CENTOS7, but I get a compile time error ONLY on CENTOS7:
> 
> /usr/bin/ld: CMakeFiles/GTest.Test.dir/gtest/gtest-all.cc.o: *undefined
> reference to symbol 'pthread_key_delete@@GLIBC_2.2.5'*
> //usr/lib64/libpthread.so.0:
> *error adding symbols: DSO missing from command line*

It says you should have -lpthread on your link command line.  Do you?

(Often this library is automatically linked to, but not always).


Segher