Because the calling overhead is too fucking slow. Never mind what happens if the library allocates memory and you're expected to free it in another module. This is bad practice, but it happens.
If the library uses weird pointer tricks like "since every data item is 4-byte aligned, we can use the low two bits of the pointer for flags", you'l break the garbage collector. Again, not great practice, but it happens.
I love dynamic languages. Every so often I try to write a game in Lisp, but productivity is about Language + Runtime. You can only justify fixing broken GL wrappers for so long, before you realize you've wasted time that you didn't have to waste.
My current fav mix is C++ without aggressively using all the bells and whistles, so it's easy to wrap for dyn languages, and Python.
If the library uses weird pointer tricks like "since every data item is 4-byte aligned, we can use the low two bits of the pointer for flags", you'l break the garbage collector. Again, not great practice, but it happens.
I love dynamic languages. Every so often I try to write a game in Lisp, but productivity is about Language + Runtime. You can only justify fixing broken GL wrappers for so long, before you realize you've wasted time that you didn't have to waste.
My current fav mix is C++ without aggressively using all the bells and whistles, so it's easy to wrap for dyn languages, and Python.