报错信息：
/usr/bin/ld: //usr/local/lib/libceres.a(evaluator.cc.o): undefined reference to symbol 'pthread_rwlock_wrlock@@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
尝试了网上很多种方法都没有解决，希望得到帮助，谢谢！
https://blog.csdn.net/yzy1103203312/article/details/78579778
检查编译时是否指定了库pthread，编译时具体要加option是-lpthread
最终格式如：gcc ... -lpthread ...