How to build Qt with clang under windows?

[Crazy Sage]

Trying to build Qt with clang, using config line
configure -debug-and-release -no-pch -nomake examples -nomake tests -skip qtwebengine -opensource -platform win32-clang-msvc
But I'm getting following error: unable to read PCH file qmake_pch.pch: 'no such file or directory'
fatal error: PCH file 'qmake_pch.pch' not found: module file not found
What am I doing wrong?

[SGaist]

Hi,

Which version of Qt ?
Which version of clang ?

[Crazy Sage]

@SGaist Qt 5.15.2
Clang 7.0.0

[Christian Ehrlicher]

@Crazy-Sage said in How to build Qt with clang under windows?:

Clang 7.0.0

And you're sure this ancient compiler supports all MSVC commands when you use clang-cl. What do you think you will gain when you compile Qt with clang-cl at all?