<entry><option>-XNoGADTs</option></entry>
</row>
<row>
+ <entry><option>-XGADTSyntax</option></entry>
+ <entry>Enable <link linkend="gadt-style">generalised algebraic data type syntax</link>.
+ </entry>
+ <entry>dynamic</entry>
+ <entry><option>-XNoGADTSyntax</option></entry>
+ </row>
+ <row>
<entry><option>-XTypeFamilies</option></entry>
<entry>Enable <link linkend="type-families">type families</link>.</entry>
<entry>dynamic</entry>
</row>
<row>
<entry><option>-XFlexibleInstances</option></entry>
- <entry>Enable <link linkend="instance-rules">flexible instances</link>.</entry>
- <entry>dynamic</entry>
+ <entry>Enable <link linkend="instance-rules">flexible instances</link>.
+ Implies <option>-XTypeSynonymInstances</option> </entry>
+ <entry>dynamic</entry>
<entry><option>-XNoFlexibleInstances</option></entry>
</row>
<row>