I received a message that ROOT/CINT sometimes leaves strange files.
Fons already answered it, but I have a little more story.
The file that are left are temp file for command line or preprocessor
output. Those files should be removed automatically. There are cases
those files remain by accident.
1) When ROOT/CINT traps segv or buserr and recovers by longjmp
2) When ROOT/CINT is terminated by fatal error
It is complete fine to clean up those files when ROOT/CINT is not running.
Thank you
Masaharu Goto