Build Wayland backend by default

Unless an explicit backend is enabled via configure option, build
both the X11 and Wayland backends.

https://bugzilla.gnome.org/show_bug.cgi?id=705498

diff --git a/configure.ac b/configure.ac
index 5992f0d781c0f2c513eb9bd3b9f839e67c0254e4..b0532d311186e1748b69cc97aba94d6f29a11c3e 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -314,6 +314,7 @@ if test -z "$backend_set"; then
     enable_win32_backend=yes
   else
     enable_x11_backend=yes
+    enable_wayland_backend=yes
   fi
 fi