This test case is a reduction from test/lisp/emacs-lisp/eieio-tests/eieio-tests.el. You can see that tests 23 and 24 will fail when you do 'make eieio-tests TEST_LOAD_EL=no'. In GNU Emacs 26.0.50 (build 64, x86_64-unknown-linux-gnu, X toolkit, Xaw scroll bars) of 2017-07-15 built on zony Repository revision: b30ee0c9225bad6e3fd0b511a6c5d9a64b8fd66a Windowing system distributor 'The X.Org Foundation', version 11.0.11901000 Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Configured using: 'configure --cache-file=../debug-config.cache 'CFLAGS=-O0 -g3 -march=native' --enable-checking=yes,glyphs --enable-check-lisp-object-type MAKEINFO=makeinfo-4.13a --with-x-toolkit=lucid --with-toolkit-scroll-bars --with-gif=no --with-jpeg=no' Configured features: XPM TIFF PNG RSVG SOUND GPM DBUS GSETTINGS NOTIFY ACL GNUTLS LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS LUCID X11 LIBSYSTEMD