Creating an Objective-C++ Static Library in Xcode
- by helixed
So I've developed an engine for the iPhone with which I'd like to build a couple different games. Rather than copy and paste the files for the engine inside of each game's project directory, I'd a way to link to the engine from each game, so if I need to make a change to it I only have to do so once. After reeding around a little bit, it seems like static libraries are the best way to do this on the iPhone.
I created a new project called Skeleton and copied all of my engine files over to it. I used this guide to create a static library, and I imported the library into a project called Chooser. However, when I tried to compile the project, Xcode started complaining about some C++ data structures I included in a file called ControlScene.mm. Here's my build errors:
"operator delete(void*)", referenced from:
-[ControlScene dealloc] in libSkeleton.a(ControlScene.o)
-[ControlScene init] in libSkeleton.a(ControlScene.o)
__gnu_cxx::new_allocator<operation_t>::deallocate(operation_t*, unsigned long)in libSkeleton.a(ControlScene.o)
__gnu_cxx::new_allocator<operation_t*>::deallocate(operation_t**, unsigned long)in libSkeleton.a(ControlScene.o)
"operator new(unsigned long)", referenced from:
-[ControlScene init] in libSkeleton.a(ControlScene.o)
__gnu_cxx::new_allocator<operation_t*>::allocate(unsigned long, void const*)in libSkeleton.a(ControlScene.o)
__gnu_cxx::new_allocator<operation_t>::allocate(unsigned long, void const*)in libSkeleton.a(ControlScene.o)
"std::__throw_bad_alloc()", referenced from:
__gnu_cxx::new_allocator<operation_t*>::allocate(unsigned long, void const*)in libSkeleton.a(ControlScene.o)
__gnu_cxx::new_allocator<operation_t>::allocate(unsigned long, void const*)in libSkeleton.a(ControlScene.o)
"___cxa_rethrow", referenced from:
std::_Deque_base<operation_t, std::allocator<operation_t> >::_M_create_nodes(operation_t**, operation_t**)in libSkeleton.a(ControlScene.o)
std::_Deque_base<operation_t, std::allocator<operation_t> >::_M_initialize_map(unsigned long)in libSkeleton.a(ControlScene.o)
"___cxa_end_catch", referenced from:
std::_Deque_base<operation_t, std::allocator<operation_t> >::_M_create_nodes(operation_t**, operation_t**)in libSkeleton.a(ControlScene.o)
std::_Deque_base<operation_t, std::allocator<operation_t> >::_M_initialize_map(unsigned long)in libSkeleton.a(ControlScene.o)
"___gxx_personality_v0", referenced from:
___gxx_personality_v0$non_lazy_ptr in libSkeleton.a(ControlScene.o)
___gxx_personality_v0$non_lazy_ptr in libSkeleton.a(MenuLayer.o)
"___cxa_begin_catch", referenced from:
std::_Deque_base<operation_t, std::allocator<operation_t> >::_M_create_nodes(operation_t**, operation_t**)in libSkeleton.a(ControlScene.o)
std::_Deque_base<operation_t, std::allocator<operation_t> >::_M_initialize_map(unsigned long)in libSkeleton.a(ControlScene.o)
ld: symbol(s) not found
collect2: ld returned 1 exit status
If anybody could offer some insight as to why these problems are occuring, I'd appreciate it.
Thanks,
helixed
