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* `gcc` and `g++` 4.9.4 or newer, or |
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* `clang` and `clang++` 3.4.2 or newer (macOS: latest Xcode Command Line Tools) |
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-* Python 2.6 or 2.7 |
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+* Python 2.7 |
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+* Python 2.7 end of life is in 2019 so a transition to Python 3 is underway. |
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+* Python 3.5, 3.6, and 3.7 are experimental. |
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* GNU Make 3.81 or newer |
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On macOS, install the `Xcode Command Line Tools` by running |
| @@ -192,8 +194,8 @@ The `-j4` option will cause `make` to run 4 simultaneous compilation jobs which |
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may reduce build time. For more information, see the |
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[GNU Make Documentation](https://www.gnu.org/software/make/manual/html\_node/Parallel.html). |
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-Note that the above requires that `python` resolve to Python 2.6 or 2.7 |
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-and not a newer version. |
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+Note that the above requires that `python` resolve to Python 2.7 and not a newer |
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+version. See [Prerequisites](#prerequisites). |
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After building, setting up [firewall rules](tools/macos-firewall.sh) can avoid |
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popups asking to accept incoming network connections when running tests. |
| @@ -400,7 +402,7 @@ $ backtrace |
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Prerequisites: |
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-* [Python 2.6 or 2.7](https://www.python.org/downloads/) |
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+* [Python 2.7](https://www.python.org/downloads/) |
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* The "Desktop development with C++" workload from |
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[Visual Studio 2017](https://www.visualstudio.com/downloads/) or the |
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"Visual C++ build tools" workload from the |