kmod: does not support static builds

Since kmod 14, the support for building a static library has been
removed completely from kmod. Therefore, we mark kmod as
!BR2_PREFER_STATIC_LIB, as well as all its reverse dependencies, which
includes the option to use the "udev" /dev management method.

[Peter: show comment for udev when BR2_PREFER_STATIC_LIB is enabled]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/kmod/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_KMOD
 	bool "kmod"
+	depends on !BR2_PREFER_STATIC_LIB
 	help
 	  handle kernel modules
 

package/udev/Config.in

@@ -3,6 +3,7 @@ config BR2_PACKAGE_UDEV
 	depends on BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_UDEV
 	depends on BR2_LARGEFILE # util-linux
 	depends on BR2_USE_WCHAR # util-linux
+	depends on !BR2_PREFER_STATIC_LIB # kmod
 	select BR2_PACKAGE_UTIL_LINUX
 	select BR2_PACKAGE_UTIL_LINUX_LIBBLKID
 	select BR2_PACKAGE_KMOD

system/Config.in

@@ -84,11 +84,15 @@ config BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_UDEV
 	bool "Dynamic using udev"
 	depends on BR2_LARGEFILE # udev
 	depends on BR2_USE_WCHAR # udev
+	depends on !BR2_PREFER_STATIC_LIB # udev -> kmod
 	select BR2_PACKAGE_UDEV
 
 comment "udev requires a toolchain with LARGEFILE + WCHAR support"
 	depends on !(BR2_LARGEFILE && BR2_USE_WCHAR)
 
+comment "udev doesn't work with 'prefer static libraries'"
+	depends on BR2_PREFER_STATIC_LIB
+
 endchoice
 
 choice