CMAKE_MATCH_ --------------- .. versionadded:: 3.9 Capture group ```` matched by the last regular expression, for groups 0 through 9. Group 0 is the entire match. Groups 1 through 9 are the subexpressions captured by ``()`` syntax. When a regular expression match is used, CMake fills in ``CMAKE_MATCH_`` variables with the match contents. The :variable:`CMAKE_MATCH_COUNT` variable holds the number of match expressions when these are filled.