meson_options.txt

# all - Build both, determine which to use at runtime
# wayland - Only provide Wayland support
# x11 - Only provide X11 support
option('windows',
  type : 'combo',
  value : 'all',
  choices : ['all', 'wayland', 'x11'],
  description : 'window system to use'
)

option('test',
  type : 'feature',
  description : 'enable tests'
)

option('contrib-commands',
  type: 'boolean',
  value: true,
  description: 'Install extra commands available in `contrib/`'
)

option('man',
  type : 'feature',
  description : 'enable man pages'
)

# Available backends:

# FreeImage http://freeimage.sourceforge.net
# depends: libjpeg, openexr, openjpeg2, libwebp, libraw, jxrlib
# license: FIPL v1.0
option('freeimage',
  type : 'feature',
  description : 'provides: png, jpg, animated gif, raw, psd, bmp, tiff, webp, etc.'
)

# libtiff
# depends: libjpeg  zlib  xz  zstd
# license: MIT
option('libtiff',
  type : 'feature',
  description : 'provides: tiff'
)

# libpng http://www.libpng.org/pub/png/libpng.html
# depends: zlib
# license: libpng license
option('libpng',
  type : 'feature',
  description : 'provides: png'
)

# libjpeg-turbo https://libjpeg-turbo.org/
# depends: none
# license: modified bsd
option('libjpeg',
  type : 'feature',
  description : 'provides: jpeg'
)

# librsvg https://wiki.gnome.org/Projects/LibRsvg
# depends: gdk-pixbuf2 pango libcroco
# license: LGPL
option('librsvg',
  type : 'feature',
  description : 'provides: svg'
)

# libnsgif https://www.netsurf-browser.org/projects/libnsgif/
# depends: none
# license: MIT
option('libnsgif',
  type : 'feature',
  description : 'provides: animated gif'
)

# libheif http://www.libheif.org
# depends: none
# license: LGPL
option('libheif',
  type : 'feature',
  description : 'provides: heif'
)