Index: OpenImageIO-3.1.10.0/src/libOpenImageIO/imageinout_test.cpp
===================================================================
--- OpenImageIO-3.1.10.0.orig/src/libOpenImageIO/imageinout_test.cpp
+++ OpenImageIO-3.1.10.0/src/libOpenImageIO/imageinout_test.cpp
@@ -360,6 +360,10 @@ test_all_formats()
         // Skip "formats" that aren't amenable to this kind of testing
         if (formatname == "null" || formatname == "term")
             continue;
+        if (formatname == "heif") {
+          std::cout << "  [skipping " << formatname << " -- not supported here]\n";
+          continue;
+        }
         float eps = 0.0f;
         // Allow lossy formats to have a little more error
         if (formatname == "heif" || formatname == "jpegxl")