diff '--color=auto' -ur OpenImageIO-3.1.6.1.orig/src/cmake/testing.cmake OpenImageIO-3.1.6.1/src/cmake/testing.cmake
--- OpenImageIO-3.1.6.1.orig/src/cmake/testing.cmake	2025-10-03 07:19:50.484870658 +0200
+++ OpenImageIO-3.1.6.1/src/cmake/testing.cmake	2025-10-03 07:31:31.421895454 +0200
@@ -276,12 +276,15 @@
                     IMAGEDIR oiio-images URL "Recent checkout of OpenImageIO-images")
     oiio_add_tests (jpeg2000
                     FOUNDVAR OPENJPEG_FOUND
+                    ENABLEVAR ENABLE_OPENJPEG
                     IMAGEDIR oiio-images URL "Recent checkout of OpenImageIO-images")
     oiio_add_tests (htj2k
                     FOUNDVAR openjph_FOUND
+                    ENABLEVAR ENABLE_OPENJPEG
                     IMAGEDIR oiio-images URL "Recent checkout of OpenImageIO-images")
     oiio_add_tests (jpeg2000-j2kp4files
                     FOUNDVAR OPENJPEG_FOUND
+                    ENABLEVAR ENABLE_OPENJPEG
                     IMAGEDIR j2kp4files_v1_5
                     URL http://www.itu.int/net/ITU-T/sigdb/speimage/ImageForm-s.aspx?val=10100803)
     set (all_openexr_tests
@@ -428,6 +431,10 @@
     oiio_get_test_data (openexr-images
                         REPO https://github.com/AcademySoftwareFoundation/openexr-images.git
                         BRANCH main)
+    if(ENABLE_FITS)
     oiio_get_test_data (fits-images)
+    endif()
+    if(ENABLE_OPENJPEG)
     oiio_get_test_data (j2kp4files_v1_5)
+    endif()
 endfunction ()