[ccache] question about safe usage of ccache

[John]

I compile kernel packages for older PCs on my workstation.  The builds are highly similar differing only in the a few option within the .config file I use for them (mainly differ cpu families).  Will ccache mess up anything or is it perfect for my use?

Example:
Kernel package 1: generic x86
Kernel package 2: core2 optimized x86

Kernel package 3: atom optimized x86

Kernel package 3:  pentium4 optimized x86


Thank you!