[DiapDealer]

If you're not trying to use system libs, then no hunspell packages should need to be manually installed. They're included with Sigil (including the necessary dictionaries).

What's the gcc version on 14.04? Anything short of gcc 4.8 is probably asking for trouble with Sigil's C++11 requirements.

In addition to that--lets start simple. If the plugin framework can't find/use the hunspell library/dictionaries, lets make sure they're where they're supposed to be. It looks like you went with the default install prefix of /usr/local, so the libhunspell.so shared library should be located in /usr/local/lib/sigil directory (along with the libsigilgumbo.so file and the sigil binary).

The hunspell dictionaries should be in the /usr/local/share/sigil/hunspell_dictionaries directory (a bunch of .dic and .aff files).