Dear Xiangyong Li, On 01.04.2014, 07:54, Ambros Gleixner wrote: > I have no experience with MinGW and MSYS, but the error message says > that your linker cannot find the pthread library, which is required by > Cplex. If it is in a strange location, you can give this to MinGW by > the USRLDFLAGS option. Best, Gerald