python: silence annoying GCC 4.8 warnings.

src/python/corrade/PyBuffer.h

@@ -50,8 +50,9 @@ template<class Class, bool(*getter)(Class&, Py_buffer&, int)> void enableBetterB
         CORRADE_INTERNAL_ASSERT(!PyErr_Occurred() && buffer);
 
         /* Zero-initialize the output and ask the class to fill it. If that
-           fails for some reason, give up */
-        *buffer = Py_buffer{};
+           fails for some reason, give up. Need to list all members otherwise
+           GCC 4.8 loudly complains about missing initializers. */
+        *buffer = Py_buffer{nullptr, nullptr, 0, 0, 0, 0, nullptr, nullptr, nullptr, nullptr, nullptr};
         if(!getter(pyInstanceFromHandle<Class>(obj), *buffer, flags)) {
             CORRADE_INTERNAL_ASSERT(!buffer->obj);
             CORRADE_INTERNAL_ASSERT(PyErr_Occurred());

src/python/corrade/containers.cpp

@@ -109,7 +109,8 @@ template<class T> void arrayView(py::class_<Containers::ArrayView<T>, Containers
 
         /* Buffer protocol */
         .def(py::init([](py::buffer other) {
-            Py_buffer buffer{};
+            /* GCC 4.8 otherwise loudly complains about missing initializers */
+            Py_buffer buffer{nullptr, nullptr, 0, 0, 0, 0, nullptr, nullptr, nullptr, nullptr, nullptr};
             if(PyObject_GetBuffer(other.ptr(), &buffer, (std::is_const<T>::value ? 0 : PyBUF_WRITABLE)) != 0)
                 throw py::error_already_set{};
 
@@ -312,7 +313,8 @@ template<unsigned dimensions, class T> void stridedArrayView(py::class_<Containe
 
         /* Buffer protocol */
         .def(py::init([](py::buffer other) {
-            Py_buffer buffer{};
+            /* GCC 4.8 otherwise loudly complains about missing initializers */
+            Py_buffer buffer{nullptr, nullptr, 0, 0, 0, 0, nullptr, nullptr, nullptr, nullptr, nullptr};
             if(PyObject_GetBuffer(other.ptr(), &buffer, PyBUF_STRIDES|(std::is_const<T>::value ? 0 : PyBUF_WRITABLE)) != 0)
                 throw py::error_already_set{};
 

src/python/magnum/math.matrix.h

@@ -107,7 +107,8 @@ template<class T, class ...Args> void everyRectangularMatrixBuffer(py::class_<T,
            layouts. Has to be defined *before* the from-tuple constructor so it
            gets precedence for types that implement the buffer protocol. */
         .def(py::init([](py::buffer other) {
-            Py_buffer buffer{};
+            /* GCC 4.8 otherwise loudly complains about missing initializers */
+            Py_buffer buffer{nullptr, nullptr, 0, 0, 0, 0, nullptr, nullptr, nullptr, nullptr, nullptr};
             if(PyObject_GetBuffer(other.ptr(), &buffer, PyBUF_FORMAT|PyBUF_STRIDES) != 0)
                 throw py::error_already_set{};
 

src/python/magnum/math.vector.h

@@ -132,7 +132,8 @@ template<class T, class ...Args> void everyVectorBuffer(py::class_<T, Args...>&
            arrays of non-default types somehow doesn't work. There's also the
            other part in vectorBuffer(). */
         .def(py::init([](py::buffer other) {
-            Py_buffer buffer{};
+            /* GCC 4.8 otherwise loudly complains about missing initializers */
+            Py_buffer buffer{nullptr, nullptr, 0, 0, 0, 0, nullptr, nullptr, nullptr, nullptr, nullptr};
             if(PyObject_GetBuffer(other.ptr(), &buffer, PyBUF_FORMAT|PyBUF_STRIDES) != 0)
                 throw py::error_already_set{};