Update Assimp.cpp

code/Common/Assimp.cpp

@@ -1282,6 +1282,8 @@ ASSIMP_API void aiQuaternionInterpolate(
 
 // Ensure all symbols are linked correctly
 #if ASSIMP_NEEDS_STB_IMAGE
+    // Share stb_image's PNG loader with other importers/exporters instead of bringing our own copy.
+#   define STBI_ONLY_PNG
 #   define STB_IMAGE_STATIC
 #   define STB_IMAGE_IMPLEMENTATION
 #   include "Common/StbCommon.h"