Makes PREFERRED_PROVIDERs in machine/netbook.conf overrideable via ?= operator

diff --git a/meta-moblin/conf/machine/netbook.conf b/meta-moblin/conf/machine/netbook.conf
index e2270180417fd4dfb86aa33aca1ce2264f997355..3165457409f83155afe74fdd33a396ae1486ab33 100644 (file)
--- a/meta-moblin/conf/machine/netbook.conf
+++ b/meta-moblin/conf/machine/netbook.conf
@@ -13,10 +13,10 @@ MACHINE_FEATURES = "kernel26 screen keyboard pci usbhost ext2 ext3 x86 wifi \
 
 KERNEL_IMAGETYPE = "bzImage"
 
-PREFERRED_PROVIDER_virtual/kernel = "linux-moblin"
-PREFERRED_PROVIDER_virtual/libx11 = "libx11-trim"
-PREFERRED_PROVIDER_virtual/libgl  = "mesa-dri"
-PREFERRED_PROVIDER_virtual/xserver = "xserver-xf86-dri-lite"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-moblin"
+PREFERRED_PROVIDER_virtual/libx11 ?= "libx11-trim"
+PREFERRED_PROVIDER_virtual/libgl  ?= "mesa-dri"
+PREFERRED_PROVIDER_virtual/xserver ?= "xserver-xf86-dri-lite"
 XSERVER ?= "xserver-xf86-dri-lite \
            xf86-input-mouse \
            xf86-input-keyboard \