depends  automake   &&
depends  expat      &&
depends  freetype2  &&
depends  glib2      &&
depends  harfbuzz   &&
depends  libpng     &&
depends  libtool    &&
depends  pcre       &&
depends  pkgconfig  &&

optional_depends docbook-utils          \
                 "--enable-docs"        \
                 "--disable-docs"       \
                 "Create documentation" &&

if is_depends_enabled $SPELL docbook-utils; then
  depends HTML_TO_TEXT
fi &&
optional_depends ttf-bitstream-vera '' '' 'for a default font'