我试图用lto构建firefox，但是由于链接器错误导致构建失败。这是我得到的错误：
0:01.34 DEBUG: /tmp/conftest-79f19c.o: file not recognized: File format not recognized
0:01.34 DEBUG: clang-3.9: error: linker command failed with exit code 1 (use -v to see invocation)
0:01.34 DEBUG: configure: failed program was:
0:01.34 DEBUG:
0:01.34 DEBUG: #line 2758 "configure"
0:01.34 DEBUG: #include "confdefs.h"
0:01.34 DEBUG:
0:01.34 DEBUG: main(){return(0);}
0:01.34 DEBUG: configure: error: installation or configuration problem: C compiler cannot create executables.