我正在使用Python 3.6和Qt 5.8的qmake和VS2017的nmake来尝试从源代码构建PyQt5。
但是，我在
的第一步遇到了如下错误 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
.
.
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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.
注意：我稍后使用pip install PyQt5成功安装了PyQt5，它运行正常。但我只是无法弄清楚错误发生的原因，我仍然希望解决它以避免将来出现同样的问题。