sudo python setup.py install --user 失败

[Mian-Wu]

在安装好环境后, 运行sudo python setup.py install --user 失败
提示:
clang: warning: include path for libstdc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
wsdream/PMF/c_PMF.cpp:9:10: fatal error: 'iostream' file not found
#include
^~~~~~~~~~
1 error generated.
error: command 'gcc' failed with exit status 1