[PULL 1/8] net/vmnet: add vmnet dependency and customizable option

[Jason Wang <jasowang@redhat.com>]

From: Vladislav Yaroshchuk <vladislav.yaroshchuk@jetbrains.com>

vmnet.framework dependency is added with 'vmnet' option
to enable or disable it. Default value is 'auto'.

used vmnet features are available since macOS 11.0,
but new backend can be built and work properly with
subset of them on 10.15 too.

Reviewed-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Tested-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Signed-off-by: Vladislav Yaroshchuk <Vladislav.Yaroshchuk@jetbrains.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 meson.build                   | 16 +++++++++++++++-
 meson_options.txt             |  2 ++
 scripts/meson-buildoptions.sh |  1 +
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 53a4728250..52f6befc0f 100644
--- a/meson.build
+++ b/meson.build
@@ -580,6 +580,18 @@ if cocoa.found() and get_option('gtk').enabled()
   error('Cocoa and GTK+ cannot be enabled at the same time')
 endif
 
+vmnet = dependency('appleframeworks', modules: 'vmnet', required: get_option('vmnet'))
+if vmnet.found() and not cc.has_header_symbol('vmnet/vmnet.h',
+                                              'VMNET_BRIDGED_MODE',
+                                              dependencies: vmnet)
+  vmnet = not_found
+  if get_option('vmnet').enabled()
+    error('vmnet.framework API is outdated')
+  else
+    warning('vmnet.framework API is outdated, disabling')
+  endif
+endif
+
 seccomp = not_found
 if not get_option('seccomp').auto() or have_system or have_tools
   seccomp = dependency('libseccomp', version: '>=2.3.0',
@@ -1741,6 +1753,7 @@ config_host_data.set('CONFIG_VHOST_KERNEL', have_vhost_kernel)
 config_host_data.set('CONFIG_VHOST_USER', have_vhost_user)
 config_host_data.set('CONFIG_VHOST_CRYPTO', have_vhost_user_crypto)
 config_host_data.set('CONFIG_VHOST_VDPA', have_vhost_vdpa)
+config_host_data.set('CONFIG_VMNET', vmnet.found())
 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
 config_host_data.set('CONFIG_PNG', png.found())
 config_host_data.set('CONFIG_VNC', vnc.found())
@@ -3897,7 +3910,8 @@ summary(summary_info, bool_yn: true, section: 'Crypto')
 # Libraries
 summary_info = {}
 if targetos == 'darwin'
-  summary_info += {'Cocoa support':   cocoa}
+  summary_info += {'Cocoa support':           cocoa}
+  summary_info += {'vmnet.framework support': vmnet}
 endif
 summary_info += {'SDL support':       sdl}
 summary_info += {'SDL image support': sdl_image}
diff --git a/meson_options.txt b/meson_options.txt
index 29c6b90cec..7325cdad45 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -197,6 +197,8 @@ option('netmap', type : 'feature', value : 'auto',
        description: 'netmap network backend support')
 option('vde', type : 'feature', value : 'auto',
        description: 'vde network backend support')
+option('vmnet', type : 'feature', value : 'auto',
+       description: 'vmnet.framework network backend support')
 option('virglrenderer', type : 'feature', value : 'auto',
        description: 'virgl rendering support')
 option('png', type : 'feature', value : 'auto',
diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh
index 5d2172bfb4..9b0d151dad 100644
--- a/scripts/meson-buildoptions.sh
+++ b/scripts/meson-buildoptions.sh
@@ -158,6 +158,7 @@ meson_options_help() {
   printf "%s\n" '  vhost-kernel    vhost kernel backend support'
   printf "%s\n" '  vhost-net       vhost-net kernel acceleration support'
   printf "%s\n" '  vhost-user      vhost-user backend support'
+  printf "%s\n" '  vmnet           vmnet.framework network backend support'
   printf "%s\n" '  vhost-user-blk-server'
   printf "%s\n" '                  build vhost-user-blk server'
   printf "%s\n" '  vhost-vdpa      vhost-vdpa kernel backend support'
-- 
2.25.1