meson: convert qemu-ga

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

meson.build

@@ -132,6 +132,10 @@ if 'CONFIG_CURL' in config_host
   curl = declare_dependency(compile_args: config_host['CURL_CFLAGS'].split(),
                             link_args: config_host['CURL_LIBS'].split())
 endif
+libudev = not_found
+if 'CONFIG_LIBUDEV' in config_host
+  libudev = declare_dependency(link_args: config_host['LIBUDEV_LIBS'].split())
+endif
 
 target_dirs = config_host['TARGET_DIRS'].split()
 have_user = false
@@ -294,6 +298,10 @@ qemuutil = declare_dependency(link_with: libqemuutil,
 
 # Other build targets
 
+if 'CONFIG_GUEST_AGENT' in config_host
+  subdir('qga')
+endif
+
 if have_tools
   subdir('contrib/rdmacm-mux')
   subdir('contrib/elf2dmp')