I'm trying to build omniORB 4.1.6 under Arch Linux. When I type `make`, here is the message:

```
../../../../../src/tool/omniidl/cxx/idlpython.cc:188:26: fatal error:  python3.3/Python.h: No such file or directory
#  include PYTHON_INCLUDE

```

I'm sure both python3 and python2 were installed, and I can remember last time I was tring to do the same thing under Linux Mint I met the same problem. That time, I used this command to solve the problem:

```
sudo apt-get install python-dev

```

However, it seems Arch doesn't separate python-dev with python. I checked my `/usr` and found Python.h under `/usr/include/python3.3m`, so what should I do now?