I have tried to upgrade to app-crypt/heimdal-7.1.0, which was not possible. The build fails with: -------- make -j17 -l8 -C base -j1 make: *** base: No such file or directory. Stop. -------- The reason is, that there is no longer a "base" directory in the root folder, but one in the "lib" folder. Removing the lines: emake -C base -j1 in multilib_src_compile() and emake -C base DESTDIR="${D}" install in multilib_src_install() fixed the issue for me and heimdal was successfully merged.
Fixed in the tree without a revbump. Thanks for the report.