Merge pull request #4380 from malytomas/tomas/fixsizet

fix missing include for size_t

code/Common/Compression.h

@@ -42,6 +42,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #pragma once
 
 #include <vector>
+#include <cstddef> // size_t
 
 namespace Assimp {