* gnu/packages/libreoffice.scm (libetonyek): Update to 0.1.6.
[arguments]: Add phase 'autoreconf, because configure.ac is patched. Add
configure flag "--with-mdds=1.2".
[inputs]: Add liblangtag.
[native-inputs]: Add autoconf and automake.
* gnu/packages/patches/libetonyek-build-with-mdds-1.2.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
