package/mesa3d: Only one swrast provider can be built

https://cgit.freedesktop.org/mesa/mesa/commit/?id=de24d61765011ed4bfc169b8ad8cf67e86b1f3bd

Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/mesa3d/Config.in

@@ -173,11 +173,15 @@ config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_SVGA
 
 config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_SWRAST
 	bool "Gallium swrast driver"
+	depends on !BR2_PACKAGE_MESA3D_DRI_DRIVER_SWRAST
 	select BR2_PACKAGE_MESA3D_GALLIUM_DRIVER
 	help
 	  This is a software opengl implementation using the Gallium3D
 	  infrastructure.
 
+comment "Gallium swrast: Only one swrast provider can be built"
+	depends on BR2_PACKAGE_MESA3D_DRI_DRIVER_SWRAST
+
 config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VC4
 	bool "Gallium vc4 driver"
 	depends on BR2_arm || BR2_aarch64