This fixes https://bugs.gnu.org/33196, a build problem caused by a defective
Elisp snippet in a check in configure.ac.
* gnu/packages/patches/emacs-realgud-fix-configure-ac.patch: Add patch.
* gnu/local.mk (dist_patch_DATA): Register it.
* gnu/packages/emacs.scm (emacs-realgud)[source]: Use it.
Maxim Cournoyer