回帖：liaohanghua:谢谢
问下"D:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30133\bin\Hostx86\x86\nmake.exe"
这个步骤的时候 提示
"QtPdf will not be built. QtPdf requires Visual Studio 2017 or higher."
....... (2022-06-11 19:37) 
用了论坛的方法 这一步可以过了
D:\Qt\Qt5.15.2\5.15.2\Src\qtwebengine>D:\Qt\Qt5.15.2\5.15.2\msvc2019\bin\qmake.exe -- -webengine-proprietary-codecs
Running configuration tests...
Checking for architecture supported... yes
Checking for bison... yes
Checking for submodule initialized... yes
Checking for build path without whitespace... yes
Checking for platform supported...
Checking for gperf... yes
Checking for flex... yes
Checking for python2... C:/Python27/python.exe
Checking for 64bit compiler... yes
Checking for winversion... yes
Checking for jumbo build merge limit... 0
Checking for d-bus... no
Checking for fontconfig... no
Checking for libdrm... no
Checking for system ninja... 此时不应有 \Microsoft。
no
Checking for xcomposite... no
Checking for xcursor... no
Checking for xi... no
Checking for xtst... no
Checking for embedded build... no
Checking for node.js... no
Done running configuration tests.
Configure summary:
Qt WebEngine Build Tools:
Use System Ninja ....................... no
Use System Gn .......................... no
Jumbo Build Merge Limit ................ no
Developer build ........................ no
Sanitizer .............................. no
Qt WebEngineCore:
Embedded build ......................... no
Full debug information ................. no
Pepper Plugins ......................... yes
Printing and PDF ....................... yes
Proprietary Codecs ..................... yes
Spellchecker ........................... yes
Native Spellchecker .................... no
WebRTC ................................. yes
PipeWire over GIO ...................... no
Geolocation ............................ yes
WebChannel support ..................... yes
Kerberos Authentication ................ yes
Extensions ............................. yes
Node.js ................................ no
Qt WebEngineQml:
Support Qt WebEngine Qml ............... yes
UI Delegates ........................... yes
Test Support ........................... no
Qt WebEngineWidgets:
Support Qt WebEngine Widgets ........... yes
Qt PDF:
Support V8 ............................. no
Support XFA ............................ no
Support XFA-BMP ........................ no
Support XFA-GIF ........................ no
Support XFA-PNG ........................ no
Support XFA-TIFF ....................... no
Qt PDF Widgets:
Support Qt PDF Widgets ................. yes
WARNING: Building without node.js will disable some features of QtWebEngine DevTools.
Qt is now configured for building. Just run 'nmake'.
Once everything is built, you must run 'nmake install'.
Qt will be installed into 'D:\Qt\Qt5.15.2\5.15.2\msvc2019'.
Prior to reconfiguration, make sure you remove any leftovers from
the previous build.