configure.ac help

[Evan Klinger]

Hello,
I've been trying to get my configure.ac script working for several days and
I'm stuck. It actually compiles fine into the configure script but when I
run the configure script it errors out with a parse error:

Found CImg.h in current directory.
./configure: line 17860: syntax error near unexpected token `('
./configure: line 17860: `  $as_echo_n "(cached) " >&6'

I've attached my configure.ac.
Any help would be greatly appreciated.

Thanks
Evan

configure.ac
Description: Binary data