Build failure on macOS platform during integration:
```
n file included from… src/modules/Hula.cpp:2:
./src/composites/Hula.h:116:40: error: implicit instantiation of undefined template 'std::__1::array<rack::simd::Vector<float, 4>, 4>'
std::array<float_4, SIMD_CHANNELS> lastOuts;
^
src/modules/Hula.cpp:19:17: note: in instantiation of template class 'HulaComp<WidgetComposite>' requested here
config (Comp::NUM_PARAMS, Comp::NUM_INPUTS, Comp::NUM_OUTPUTS, Comp::NUM_LIGHTS);
^
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
In file included from src/modules/Hula.cpp:2:
./src/composites/Hula.h:117:40: error: implicit instantiation of undefined template 'std::__1::array<rack::simd::Vector<float, 4>, 4>'
std::array<float_4, SIMD_CHANNELS> phases;
^
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
In file included from src/modules/Hula.cpp:2:
./src/composites/Hula.h:118:40: error: implicit instantiation of undefined template 'std::__1::array<rack::simd::Vector<float, 4>, 4>'
std::array<float_4, SIMD_CHANNELS> fineTuneVocts;
^
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
In file included from src/modules/Hula.cpp:2:
./src/composites/Hula.h:123:93: error: implicit instantiation of undefined template 'std::__1::array<sspo::Decimator<4, 1, rack::simd::Vector<float, 4> >, 4>'
std::array<sspo::Decimator<oversampleCount, oversampleQuality, float_4>, SIMD_CHANNELS> decimators;
^
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
In file included from src/modules/Hula.cpp:2:
./src/composites/Hula.h:124:69: error: implicit instantiation of undefined template 'std::__1::array<std::__1::array<rack::simd::Vector<float, 4>, 4>, 4>'
std::array<std::array<float_4, oversampleCount>, SIMD_CHANNELS> oversampleBuffers;
^
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
In file included from src/modules/Hula.cpp:2:
./src/composites/Hula.h:125:54: error: implicit instantiation of undefined template 'std::__1::array<sspo::BiQuad<rack::simd::Vector<float, 4> >, 4>'
std::array<sspo::BiQuad<float_4>, SIMD_CHANNELS> dcOutFilters;
^
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
In file included from src/modules/Hula.cpp:2:
./src/composites/Hula.h:126:54: error: implicit instantiation of undefined template 'std::__1::array<sspo::BiQuad<rack::simd::Vector<float, 4> >, 4>'
std::array<sspo::BiQuad<float_4>, SIMD_CHANNELS> lpFilters;
^
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
In file included from src/modules/Hula.cpp:2:
./src/composites/Hula.h:128:54: error: implicit instantiation of undefined template 'std::__1::array<sspo::BiQuad<rack::simd::Vector<float, 4> >, 4>'
std::array<sspo::BiQuad<float_4>, SIMD_CHANNELS> depthFilters;
^
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
^
In file included from src/modules/Hula.cpp:2:
./src/composites/Hula.h:129:54: error: implicit instantiation of undefined template 'std::__1::array<sspo::BiQuad<rack::simd::Vector<float, 4> >, 4>'
std::array<sspo::BiQuad<float_4>, SIMD_CHANNELS> feedbackFilters;
^
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/__tuple:223:64: note: template is declared here
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
```
and
```
In file included from /home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/algorithm:643:
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/memory:4233:28: error: assigning to 'std::__1::__shared_weak_count *' from incompatible type 'std::__1::unique_ptr<std::__1::__shared_ptr_emplace<HulaComp<WidgetComposite>, std::__1::allocator<HulaComp<WidgetComposite> > >, std::__1::__allocator_destructor<std::__1::allocator<std::__1::__shared_ptr_emplace<HulaComp<WidgetComposite>, std::__1::allocator<HulaComp<WidgetComposite> > > > > >::pointer' (aka 'std::__1::__shared_ptr_emplace<HulaComp<WidgetComposite>, std::__1::allocator<HulaComp<WidgetComposite> > > *')
__r.__cntrl_ = __hold2.release();
~~~~~~~~^~~~~~~~~
/home/build/rack-plugin-toolchain/local/osxcross/bin/../SDK/MacOSX10.13.sdk/usr/include/c++/v1/memory:4600:29: note: in instantiation of function template specialization 'std::__1::shared_ptr<HulaComp<WidgetComposite> >::make_shared<Hula *>' requested here
return shared_ptr<_Tp>::make_shared(_VSTD::forward<_Args>(__args)...);
^
src/modules/Hula.cpp:20:21: note: in instantiation of function template specialization 'std::__1::make_shared<HulaComp<WidgetComposite>, Hula *>' requested here
hula = std::make_shared<Comp> (this);
^
```