fatal error C1204:Compiler limit:internal structure overflow

fatal error C1204:Compiler limit:internal structure overflow

Q: I get this error message when compiling a large source file. What can I do?

A: You have two choices:

Upgrade your compiler (preferred)
Break your source file up into multiple translation units.
my_module.cpp:
```
...
void more_of_my_module();
BOOST_PYTHON_MODULE(my_module)
{
  def("foo", foo);
  def("bar", bar);
  ...
  more_of_my_module();
}
```
more_of_my_module.cpp:
```
void more_of_my_module()
{
  def("baz", baz);
  ...
}
```
If you find that a class_<...> declaration can't fit in a single source file without triggering the error, you can always pass a reference to the class_ object to a function in another source file, and call some of its member functions (e.g. .def(...)) in the auxilliary source file:

more_of_my_class.cpp:
```
void more_of_my_class(class&lt;my_class&gt;&amp; x)
{
  x
   .def("baz", baz)
   .add_property("xx", &my_class::get_xx, &my_class::set_xx)
   ;
  ...
}
```