"python setup.py install" has error

[zhuangchaoxi]

_nanomsg_cpy/wrapper.c:4:24: fatal error: nanomsg/nn.h: No such file or directory
#include <nanomsg/nn.h>
^
compilation terminated.

===============================================================================
WARNING : CPython API extension could not be built.

Exception was : CompileError(DistutilsExecError("command 'gcc' failed with exit status 1",),)

If you need the extensions (they may be faster than alternative on some
platforms) check you have a compiler configured with all the necessary
headers and libraries.

[zhuangchaoxi]

My problem is solved：
ln -s /usr/local/nanomsg/include/nanomsg/ /usr/include/nanomsg