CMake/Help/command/include_regular_expression.rst

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include_regular_expression
--------------------------
Set the regular expression used for dependency checking.
::
include_regular_expression(regex_match [regex_complain])
Set 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 defaults are:
::
regex_match = "^.*$" (match everything)
regex_complain = "^$" (match empty string only)