--- meson_options.txt.orig	2025-10-05 17:14:02 UTC
+++ meson_options.txt
@@ -42,10 +42,10 @@ option('heif',              type: 'feature', value: 'a
 option('ghostscript',       type: 'feature', value: 'auto', description: 'Ghostscript support')
 option('gudev',             type: 'feature', value: 'auto', description: 'Gudev support')
 option('heif',              type: 'feature', value: 'auto', description: 'HEIF support')
-option('ilbm',              type: 'feature', value: 'auto', description: 'Amiga IFF support')
+option('ilbm',              type: 'feature', value: 'disabled', description: 'Amiga IFF support')
 option('jpeg2000',          type: 'feature', value: 'auto', description: 'Jpeg-2000 support')
 option('jpeg-xl',           type: 'feature', value: 'auto', description: 'JPEG XL support')
-option('mng',               type: 'feature', value: 'auto', description: 'Mng support')
+option('mng',               type: 'feature', value: 'disabled', description: 'Mng support')
 option('openexr',           type: 'feature', value: 'auto', description: 'Openexr support')
 option('openmp',            type: 'feature', value: 'auto', description: 'OpenMP support')
 option('print',             type: 'boolean', value: true,   description: 'Print support')
@@ -54,7 +54,7 @@ option('xpm',               type: 'feature', value: 'a
 option('wmf',               type: 'feature', value: 'auto', description: 'Wmf support')
 option('xcursor',           type: 'feature', value: 'auto', description: 'Xcursor support')
 option('xpm',               type: 'feature', value: 'auto', description: 'XPM support')
-option('headless-tests',    type: 'feature', value: 'auto', description: 'Use xvfb-run/dbus-run-session for UI-dependent automatic tests')
+option('headless-tests',    type: 'feature', value: 'disabled', description: 'Use xvfb-run/dbus-run-session for UI-dependent automatic tests')
 option('file-plug-ins-test', type: 'boolean', value: false, description: 'Always install test-file-plug-ins (mostly for CI testing)')
 
 option('can-crosscompile-gir', type: 'boolean', value: false, description: 'GIR is buildable even if crosscompiling')
