building custom kernel on -current: unknown option "COMPAT_LINUX"

Anton Shterenlikht mexas at
Sun Feb 10 00:31:46 UTC 2013

	From freebsd at Sun Feb 10 00:29:36 2013

	On Sun, 10 Feb 2013 00:18:06 GMT, Anton Shterenlikht wrote:
	> This is on amd64 r246552
	> I added
	> options COMPAT_43
	> options COMPAT_LINUX
	> options COMPAT_LINUX32
	> to the kernel config,
	> following sys/amd64/conf/NOTES
	> On buildkernel I get:
	> unknown option "COMPAT_LINUX"
	> What am I missing?

	Do you also have those (from a working i386 system):

	# Linux support
	options		COMPAT_LINUX		# Enable Linux ABI emulation
	options		LINPROCFS		# Enable the linux-like proc filesystemsupport (requires COMPAT_LINUX and PSEUDOFS)
	options		LINSYSFS		# Enable the linux-like sys filesystem support (requires COMPAT_LINUX and PSEUDOFS)
	device		lindev
	options		COMPAT_AOUT		# Enable i386 a.out binary support

	(note PSEUDOFS is also needed)

No, I haven't added those.
Are these necessary to have
the linux binary compatibility?
The handbook only mentions COMPAT_LINUX.



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