[Click] Additional warning message

[wangshuqiao]

Hi,
   This is an additional message to the "Can't install the linux module"
   After "# ./configure --prefix=/usr/src/PREFIX", the warning message appeared: 

  checking for C++-includable kernel header files... no
configure: WARNING:
=========================================

Your header files must be patched before a C++ program
can include them. Apply the patch that came with this distribution
if you want to compile Click as a Linux module.

=========================================

I wonder if this is the reason that I can't install the linux module.   

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