[poky] Help with configuring Yocto with an external toolchain except "csl"

[jojo]

@all,
	I google some information about this topic and then,
	i found the case is that jut support "CodeSourcery labs" toolchain.
	
	I think my external toolchain is not standard of directory like "tcmode-externl-csl".
	I can use "buildroot" to use this toolchian that just use three variables following :
		BR2_TOOLCHAIN_EXTERNAL_PREFIX
		BR2_TOOLCHAIN_EXTERNAL_PATH
		BR2_TOOLCHAIN_EXTERNAL_SYSROOT_PATH

	so there are some solution in poky ? thanks for you attention :)


B.R.
-- jojo