[Buildroot] [git commit branch/2018.08.x] qemu: sdl frontend needs x11

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=a5d6faed39f10d1c56333e4f27c7fbbdfa806302
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2018.08.x

Since qemu 2.12.0 and
https://github.com/qemu/qemu/commit/2ec78706d188df7d3dab43d07b19b05ef7800a44,
x_keymap.h has been converted from "SDL display driver" to "X11 keymaps"

So add a select on BR2_PACKAGE_SDL_X11

Fixes:
 - http://autobuild.buildroot.org/results/1908d2d7de8d3aff11ed6fbb8fe4cf3eff54b5a5

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
Reviewed-by: Matt Weber <matthew.weber at rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
(cherry picked from commit 8153ce21e7d1a11c6ac9a722d81a2e14f5428dbd)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 package/qemu/Config.in | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/package/qemu/Config.in b/package/qemu/Config.in
index 13b615bfba..cf25c35194 100644
--- a/package/qemu/Config.in
+++ b/package/qemu/Config.in
@@ -97,7 +97,9 @@ comment "Frontends"
 
 config BR2_PACKAGE_QEMU_SDL
 	bool "Enable SDL frontend"
+	depends on BR2_PACKAGE_XORG7
 	select BR2_PACKAGE_SDL
+	select BR2_PACKAGE_SDL_X11
 	help
 	  Say 'y' to enable the SDL frontend, that is, a graphical
 	  window presenting the VM's display.