[at-spi2-core] meson: x11 fixes

[Mike Gorse <mgorse src gnome org>]

commit 70705839990f8eb5112b0262bb0960e806c62fbc
Author: Mike Gorse <mgorse alum wpi edu>
Date:   Mon Oct 23 20:21:57 2017 -0500

    meson: x11 fixes
    
    Meson wasn't defining HAVE_X11, so x11 support wasn't being compiled even
    if X was determined to be present.
    Also, add an enable-x11 option (default is to auto-detect).

 atspi/meson.build     |    2 +-
 bus/meson.build       |    2 +-
 meson.build           |   28 ++++++++++++++++------------
 meson_options.txt     |    2 ++
 registryd/meson.build |   19 +++++++++++--------
 5 files changed, 31 insertions(+), 22 deletions(-)
---
diff --git a/atspi/meson.build b/atspi/meson.build
index 1ec3ecd..327134a 100644
--- a/atspi/meson.build
+++ b/atspi/meson.build
@@ -69,7 +69,7 @@ atspi_enum_h = atspi_enums[1]
 
 atspi = shared_library('atspi', atspi_sources + atspi_enums,
                        include_directories: [ root_inc, registryd_inc ],
-                       dependencies: [ libdbus_dep, gobject_dep, dbind_dep ],
+                       dependencies: [ libdbus_dep, gobject_dep, dbind_dep, x11_deps ],
                        install: true)
 
 atspi_dep = declare_dependency(link_with: atspi,
diff --git a/bus/meson.build b/bus/meson.build
index 8e4673f..909103c 100644
--- a/bus/meson.build
+++ b/bus/meson.build
@@ -45,7 +45,7 @@ endif
 
 executable('at-spi-bus-launcher', 'at-spi-bus-launcher.c',
            include_directories: [ root_inc, include_directories('.') ],
-           dependencies: [ gio_dep ],
+           dependencies: [ gio_dep, x11_deps ],
            c_args: [
              '-DSYSCONFDIR="@0@"'.format(atspi_sysconfdir),
              '-DDATADIR="@0@"'.format(atspi_datadir),
diff --git a/meson.build b/meson.build
index e746e14..4eac857 100644
--- a/meson.build
+++ b/meson.build
@@ -53,21 +53,25 @@ glib_dep = dependency('glib-2.0', version: glib_req_version)
 gobject_dep = dependency('gobject-2.0', version: gobject_req_version)
 gio_dep = dependency('gio-2.0', version: gio_req_version)
 dl_dep = cc.find_library('dl', required: false)
-x11_dep = dependency('x11', required: false)
 
 x11_deps = []
-if x11_dep.found()
-  x11_deps += x11_dep
-
-  xtest_dep = dependency('xtst')
-  x11_deps += xtest_dep
-
-  if cc.has_function('XkbGetMap', dependencies: x11_deps)
-    at_spi_conf.set('HAVE_XKB', 1)
+x11_option = get_option('enable-x11')
+if x11_option != 'no'
+  x11_dep = dependency('x11', required: false)
+
+  if x11_dep.found()
+    x11_deps += x11_dep
+    at_spi_conf.set('HAVE_X11', 1)
+    xtest_dep = dependency('xtst')
+    x11_deps += xtest_dep
+
+    if cc.has_function('XkbGetMap', dependencies: x11_deps)
+      at_spi_conf.set('HAVE_XKB', 1)
+    endif
+
+    xinput_dep = dependency('xi')
+    x11_deps += xinput_dep
   endif
-
-  xinput_dep = dependency('xi')
-  x11_deps += xinput_dep
 endif
 
 # Alignments
diff --git a/meson_options.txt b/meson_options.txt
index 305fc8c..c9afe2f 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -16,3 +16,5 @@ option('enable_docs',
        value: false)
 
 option('enable-introspection', type: 'combo', choices: ['yes', 'no', 'auto'], value: 'auto', description: 
'Enable GObject Introspection (depends on GObject)')
+
+option('enable-x11', type: 'combo', choices: ['yes', 'no', 'auto'], value: 'auto', description: 'Enable X11 
support')
diff --git a/registryd/meson.build b/registryd/meson.build
index 5de6902..eb8236e 100644
--- a/registryd/meson.build
+++ b/registryd/meson.build
@@ -16,15 +16,18 @@ registryd_deps = [
   dl_dep,
 ]
 
-if x11_dep.found()
-  registryd_sources += [
-    'deviceeventcontroller-x11.c',
-    'display.c',
-    'event-source.c',
-    'ucs2keysym.c',
-  ]
+x11_option = get_option('enable-x11')
+if x11_option != 'no'
+  if x11_dep.found()
+    registryd_sources += [
+      'deviceeventcontroller-x11.c',
+      'display.c',
+      'event-source.c',
+      'ucs2keysym.c',
+    ]
 
-  registryd_deps += x11_deps 
+    registryd_deps += x11_deps 
+  endif
 endif
 
 executable('at-spi2-registryd', registryd_sources,