makefile-ignored-files-in-pickup-regex

makefile-ignored-files-in-pickup-regex is a variable defined in `make-mode.el'.
Its value is

"\\(^\\..*\\)\\|\\(.*~$\\)\\|\\(.*,v$\\)\\|\\(\\.[chy]\\)"

• This variable may be risky if used as a file-local variable.

Documentation:
Regex for filenames that will NOT be included in the target list.