[asterisk-users] DAHDI 2.6.1 - What does " Build OSLEC EC if in the tree" feature means ?

[Olivier]

Hi,

In DAHDI 2.6.1 changelog includes this :

README, drivers/dahdi/Kbuild: Build OSLEC EC if in the tree Build
	  the OSLEC echo canceller (drivers/staging/echo and
	  dahdi_echocan_oslec) if the code of oslec is present in the tree.
	  Also closing another issue regarding documentation of building
	  OSLEC, as it is now even clearer than before. Patch has been used
	  in the Debian package for quite some time. Signed-off-by: Tzafrir
	  Cohen <tzafrir.cohen at xorcom.com> (closes issue DAHLIN-110)
	  Reported by: biohumanoid (Pavel Selivanov) Patches:
	  oslec_auto.diff uploaded by tzafrir (license 5035) (closes issue
	  DAHLIN-261) Origin:
	  http://svnview.digium.com/svn/dahdi?view=rev&rev=10440


I think OSLEC is included in Linux for several months, now.
What does this new addition mean ?

Regards