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This is a list of presently defined Automake conditionals in our infrastructure. They can be used to enable / disable build steps such as testing and enabling or disabling build targets depending on the user's configuration.

WANT_MORPHOLOGY
--enable-analysers, default=yes
Used to enable the default set of analysers, which is: analyser-gt-desc.xfst, analyser-gt-norm.xfst and analyser-disamb-gt-desc.hfst
WANT_GENERATION
--enable-generators, default=yes
Used to enable the default set of generators, which is: generator-gt-desc.xfst and generator-gt-norm.xfst
WANT_TRANSCRIPTORS
--enable-transcriptors, default =yes
Used to enable compilation of transcriptors, that is, converters between different types of textual representations, such as dates expressed as text or digits.
WANT_SPELLERS
--enable-spellers, default=no
Used to enable building of spellers in general
WANT_SPELLERAUTOMAT
--enable-spellerautomat, default=no
Used to enable building of the hfst speller automat
WANT_VOIKKO
--enable-voikko, default=no
Used to enable building of the voikko speller = zhfst file
WANT_HUNSPELL
--enable-hunspell, default=no
Used to enable building of Hunspell dic and aff files. Not yet functional since this build is not implemented.
WANT_FST_HYPHENATOR
--enable-fst_hyphenator, default=no
Used to enable building of hyphenating tools. Not functional because it is not implemented yet.
WANT_GRAMCHECK
--enable-grammarchecker, default=no
Used to enable building of grammar checkers. Is only usable in sme, the only language with a grammar checker at the moment.
WANT_DICTIONARIES
--enable-dicts, default=no
Used to enable building of transducers targeted at electronic dictionaries
WANT_OAHPA
--enable-oahpa, default=no
Used to enable building of transducers targeted at Oahpa
WANT_PHONETIC
--enable-phonetic, default=no
Used to enable building of transducers for conversion from text to IPA
WANT_APERTIUM
--enable-apertium, default=no
Used to enable building of transducers and constraint grammar files used for machine translation in Apertium

Example of how to use them:

if WANT_MORPHOLOGY
GT_ANALYSERS_HFST+=analyser-gt-desc.hfst \
				   analyser-gt-norm.hfst \
				   analyser-disamb-gt-desc.hfst
endif # WANT_MORPHOLOGY

This ensures that we build Hfst analysers only if the user has enabled analysers. Analysers are enabled by default, so the usefulness of this is rather the oposite: the user can explicitly disable analysers, e.g. to speed up compilation time when building spellers. In that case, the conditional will make sure that the analysers are not built.