* gnu/packages/authentication.scm (oath-toolkit)[source](patches): Add upstream patch.
* gnu/packages/patches/oath-toolkit-glibc-compat.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/authentication.scm (oath-toolkit)[source](patches): New field.
* gnu/packages/authentication.scm: New file. (oath-toolkit): New public variable. * gnu/local.mk (GNU_SYSTEM_MODULES): Add the new file.