安装gcc，make时产生错误如下~求大神指教

[jeffrey丶35]

gmp，mpc，mpfr，m4都安了，对gcc配置完之后make，最后出现：
configure: error: in `/home/jeffrey/Downloads/gcc-build/gcc':
configure: WARNING: C++ preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details.
checking for unordered_map... no
checking for tr1/unordered_map... no
checking for ext/hash_map... no
checking dependency style of g++... none
configure: error: no usable dependency style found
make[2]: *** [configure-stage1-gcc] Error 1
make[2]: Leaving directory `/home/jeffrey/Downloads/gcc-build'
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory `/home/jeffrey/Downloads/gcc-build'
make: *** [all] Error 2