issue related to bison

[Bharath Gattu]

Hi,
Previously we are using Bison and Flex in our project to generate some parser 
files automatically.
But now we don't want those files to be generated automatically.
We would like to keep the Bison accessible. But we want to remove the 
dependency with the Bison so that It would not generate the files automatically.

My question here is how can I find the dependency with the Bison which is 
causing these auto generated files.
Is there some kind of flag which is invoking BISON.
Please help me with the solution.
Regards
Bharath