kohler/click — pull request #66 by shoban (2012-09-28 10:12:40+00:00)
Title: Fix complile issue for older kernels.

Add -Werror-implicit-function-declaration to ac_cv_linuxmodule_click_skb_recycle
test to detect if skb_recycle actually return sk_buff ptr. Otherwise, autoconf
logs a warning about implicit declaration and passes.