Install libgspell-1-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libgspell-1-dev
Description:
spell-checking library for GTK+ applications - development files
gspell provides a flexible API to add spell checking to a GTK+ application. It features: * GObject wrappers around Enchant * An inline spell checker for GtkTextView (enhanced version of GtkSpell) * A spell checker dialog for GtkTextView * Support of the no-spell-check tag defined by GtkSourceView * Language choosers (button and dialog) . This package contains development headers and libraries.
Homepage: https://wiki.gnome.org/Projects/gspell
Version: 1.6.1-1
Section: libdevel