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31d59ff3b1
Add a check that a simple source file can compile as C++17 that uses some of the features we need. Do this only when hosted by CMake 3.8 or above because those versions are aware of C++17. Check for unordered_map as we do in bootstrap since commit 375eca7881 (bootstrap: Check support for unordered_map from compiler mode, 2017-11-30). Also maintain the existing C++14 cstdio check.
8 lines
71 B
C++
8 lines
71 B
C++
#include <cstdio>
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#include <unordered_map>
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int main()
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{
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return 0;
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}
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