# include_regular_expression

Set the regular expression used for dependency checking.

    include_regular_expression(regex_match [regex_complain])

Sets the regular expressions used in dependency checking. Only files matching `regex_match` will be traced as dependencies. Only files matching `regex_complain` will generate warnings if they cannot be found (standard header paths are not searched).

The default for `regex_match` is `"^.*$"` (match everything). The default for `regex_complain` is `"^$"` (match empty string only).