colmap pthread 错误

-- Looking for include file pthread.h

-- Looking for include file pthread.h - found

-- Looking for pthread_create

-- Looking for pthread_create - not found

-- Looking for pthread_create in pthreads

-- Looking for pthread_create in pthreads - not found

-- Looking for pthread_create in pthread

-- Looking for pthread_create in pthread - found

-- Performing Test GFLAGS_IN_GOOGLE_NAMESPACE

-- Performing Test GFLAGS_IN_GOOGLE_NAMESPACE - Success

安装完colmap所依赖的ceres-solver后，在编译colmap后出现pthread错误问题。

解决方法，1.修改gcc版本，使用gcc-7，g++-7

2.重启电脑，重新编译ceres-solver以及colmap。可解

然后顺利安装，如有其他问题，可留言