Debian 10 dropped mono support, and it isn't present in CentOS or FreeBSD.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 guests/vars/mappings.yml                | 10 ++++++++++
 guests/vars/projects/libvirt-csharp.yml |  4 ++++
 2 files changed, 14 insertions(+)
 create mode 100644 guests/vars/projects/libvirt-csharp.yml

diff --git a/guests/vars/mappings.yml b/guests/vars/mappings.yml
index 31b5318..c3b8488 100644
--- a/guests/vars/mappings.yml
+++ b/guests/vars/mappings.yml
@@ -688,6 +688,16 @@ mappings:
     default: kmod
     FreeBSD:
 
+  mono:
+    default:
+    Fedora: mono-devel
+    Debian9: mono-devel
+
+  monodevelop:
+    default:
+    Fedora: monodevelop
+    Debian9: monodevelop
+
   nano:
     default: nano
 
diff --git a/guests/vars/projects/libvirt-csharp.yml b/guests/vars/projects/libvirt-csharp.yml
new file mode 100644
index 0000000..85598b5
--- /dev/null
+++ b/guests/vars/projects/libvirt-csharp.yml
@@ -0,0 +1,4 @@
+---
+packages:
+  - mono
+  - monodevelop
-- 
2.26.2

On Mon, 2020-05-11 at 18:22 +0100, Daniel P. Berrangé wrote:
> +  mono:
> +    default:
> +    Fedora: mono-devel
> +    Debian9: mono-devel
> +
> +  monodevelop:
> +    default:
> +    Fedora: monodevelop
> +    Debian9: monodevelop

You don't need the 'default' entries.

With those removed,

  Reviewed-by: Andrea Bolognani <abologna@redhat.com>

-- 
Andrea Bolognani / Red Hat / Virtualization