clang: error: linker command failed with exit code 1 (use -v to see invocation)

[junliu-cn]

clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[1]: *** [run] Error 1
make: *** [all] Error 2

Is there anyone who can solve this problem?Pls help me, thanks!

[zengxianyu]

this code is only compatible to 32 bit