[PATCH v2 1/2] meson: Select 'have_system' when virtiofsd is enabled

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

When not explicitly select a sysemu target and building virtiofsd,
the seccomp/cap-ng libraries are not resolved, leading to this error:

  $ configure --target-list=i386-linux-user --disable-tools --enable-virtiofsd
  tools/meson.build:12:6: ERROR: Problem encountered: virtiofsd requires libcap-ng-devel and seccomp-devel

Fix by enabling sysemu (have_system) when virtiofsd is built.

Reported-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 meson.build | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/meson.build b/meson.build
index c6f4b0cf5e8..f858935ad95 100644
--- a/meson.build
+++ b/meson.build
@@ -51,6 +51,8 @@
   have_system = have_system or target.endswith('-softmmu')
 endforeach
 have_tools = 'CONFIG_TOOLS' in config_host
+# virtiofsd depends on sysemu
+have_system = have_system or not get_option('virtiofsd').disabled()
 have_block = have_system or have_tools
 
 python = import('python').find_installation()
-- 
2.26.3