Update minimum CMake version to 3.9#1083
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BoostRoot uses `CMAKE_MATCH_<n>` which only exists since CMake 3.9
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I wonder how did that work before. |
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No one used CMake < 3.9 for the super build I guess. Or it just skipped stuff or added everything as the variable was unset |
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@grisumbras reports that 3.8 works: boostorg/json#1110 |
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Can we merge #1082 to verify the used CMake version? In this case: It is a documentation bug. That variables were supported since 2.6 |
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BoostRoot uses
CMAKE_MATCH_<n>which only exists since CMake 3.9https://cmake.org/cmake/help/latest/command/if.html#matches
@pdimov