undefined reference to symbol symbol pthread condattr se csdn博客 undefined reference to pthread h you cmake undefined reference to symbol linux系统make时出现undefined reference undefined reference to pthread create undefined reference to symbol dlclose undefined reference to pthread h you linux glibc 2 2 5 error attachment 0003 png attachment 0002 png installation bdsim 1 7 5 doentation solved tfs undefined reference for installing opencv 2 4 1 in ubuntu 12 04 undefined reference to pthread create how to build a gcc cross compiler how to build a gcc cross compiler