Python PyQt5 5.8.2在Windows 10上从源代码生成

我正在使用Python3.6、Qt5.8的qmake和VS2017的nmake，试图从源代码构建PyQt5

但是，在执行的第一步中，我遇到了如下错误

python configure.py--verbose

：

C:\Qt\5.8\msvc2015_64\include\QtCore/qalgorithms.h(593): error C3615: constexpr function 'QAlgorithmsPrivate::qt_builtin_ctz' cannot result in a constant expression
C:\Qt\5.8\msvc2015_64\include\QtCore/qalgorithms.h(595): note: failure was caused by an uninitialized variable declaration
C:\Qt\5.8\msvc2015_64\include\QtCore/qalgorithms.h(595): note: see usage of 'result'
C:\Qt\5.8\msvc2015_64\include\QtCore/qalgorithms.h(596): note: failure was caused by an illegal statement or expression
C:\Qt\5.8\msvc2015_64\include\QtCore/qalgorithms.h(600): error C3615: constexpr function 'QAlgorithmsPrivate::qt_builtin_clz' cannot result in a constant expression
C:\Qt\5.8\msvc2015_64\include\QtCore/qalgorithms.h(602): note: failure was caused by an uninitialized variable declaration
C:\Qt\5.8\msvc2015_64\include\QtCore/qalgorithms.h(602): note: see usage of 'result'
C:\Qt\5.8\msvc2015_64\include\QtCore/qalgorithms.h(603): note: failure was caused by an illegal statement or expression
.
.
.
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.10.25017\bin\HostX64\x64\cl.EXE"' : return code '0x2'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.10.25017\bin\HostX64\x64\nmake.exe"' : return code '0x2'
Stop.

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注意：我确实在稍后使用

pip install PyQt5

成功安装了PyQt5，它工作正常。但是我无法理解为什么会发生错误，我仍然希望解决它，以避免将来出现同样的问题。

之后，通过VS2015构建和编译似乎工作得很好。

尝试询问PyQt邮件列表上的作者。可能与。您真的需要使用VS2017进行构建吗？因为您使用的是VS2015版本的Qt，所以您可能应该使用相同的版本来构建PyQt，以避免使用多个MSVC运行时。