Binary package “libgtkspellmm-3.0-dev” in ubuntu focal

C++ wrapper library for GtkSpell (development files)

 GtkSpellmm provides C++ bindings for the GtkSpell spell-checking library.
 GtkSpell provides LibreOffice-style highlighting of misspelled words in a
 GtkTextView widget. Right-clicking a misspelled word pops up a menu of
 suggested replacements.
 This package contains the development libraries and header
 files needed by C++ programs that want to compile with GtkSpell.