Make xkbcommon required in meson.

Make xkbcommon a required dependency in meson. Move xext output into
the dependencies block (missed when it was made required). Update
INSTALL.md with this change and include some missing dependencies.

dev-docs/INSTALL.md

@@ -29,6 +29,7 @@ system in use.
 * libx11-dev
 * libxext-dev
 * libxft-dev
+* libxkbcommon-dev
 * libxrandr-dev (>= 1.5)
 * libxrender-dev
 * libxt-dev
@@ -37,13 +38,15 @@ system in use.
 ## Optional dependencies
 
 * asciidoctor
+* golang
 * libfribidi-dev
 * libncurses5-dev
 * libpng-dev
 * libreadline-dev
 * librsvg-dev
 * libsm-dev
 * libxcursor-dev
+* libxfixes-dev
 * libxi-dev
 * libxpm-dev
 * sharutils

meson.build

@@ -199,8 +199,14 @@ endforeach
 
 xext = dependency('xext', required: true)
 all_found_deps += xext
+summary_depvals += {'xext': xext}
 conf.set10('SHAPE', true)
 
+xkbcommon = dependency('xkbcommon', required: true)
+all_found_deps += xkbcommon
+summary_depvals += {'xkbcommon': xkbcommon}
+conf.set10('HAVE_X11_XKBLIB_H', true)
+
 # Python is a required dependency, we generate shebangs at buildtime
 # This will error by default if there is no python interpreter found
 py_mod = import('python')
@@ -354,12 +360,6 @@ if xfixes.found()
     conf.set10('HAVE_XFIXES', true)
 endif
 
-xkbcommon = dependency('xkbcommon', required: get_option('xkbcommon'))
-if xkbcommon.found()
-    all_found_deps += xkbcommon
-    conf.set10('HAVE_X11_XKBLIB_H', true)
-endif
-
 xpm = dependency('xpm', required: get_option('xpm'))
 if xpm.found()
     all_found_deps += xpm
@@ -571,11 +571,9 @@ featurevals = {
     'NLS': libintl.found(),
     'PNG support': libpng.found() ? libpng : false,
     'Session Management': sm.found() ? sm : false,
-    'Shaped Windows': xext.found() ? xext : false,
     'SVG support': librsvg.found() ? librsvg : false,
     'Xcursor': xcursor.found() ? xcursor : false,
     'XFixes': xfixes.found() ? xfixes : false,
-    'xkbcommon': xkbcommon.found() ? xkbcommon : false,
     'XPM support': xpm.found() ? xpm : false,
     'XRender': xrender.found() ? xrender : false,
 }

meson.options

@@ -94,12 +94,6 @@ option(
     value: 'auto',
     description: 'Enable XFixes support',
 )
-option(
-    'xkbcommon',
-    type: 'feature',
-    value: 'auto',
-    description: 'Enable xkbcommon support',
-)
 option(
     'xrender',
     type: 'feature',