Fix some warnings

include/Nazara/Core/Modules.inl

@@ -18,7 +18,10 @@ namespace Nz
 				if constexpr (std::is_same_v<T, std::decay_t<First>>)
 					return std::forward<First>(first);
 				else
+				{
+					NazaraUnused(first);
 					return Get(std::forward<Args>(args)...);
+				}
 			}
 
 			static auto Get()

src/Nazara/OpenGLRenderer/OpenGLBuffer.cpp

@@ -19,7 +19,7 @@ namespace Nz
 
 	bool OpenGLBuffer::Fill(const void* data, UInt64 offset, UInt64 size)
 	{
-		m_buffer.SubData(offset, size, data);
+		m_buffer.SubData(GLintptr(offset), GLsizeiptr(size), data);
 		return true;
 	}