[Interest] 5.11 QDoc 2 hours build time

[Oliver Niebuhr]

Hello.

Before I create an official Bug Report:

Has anyone else the Problem, that the QDoc Module alone takes longer to
build than all other Modules together?

QDoc build times:
* OS: Win 10, FCU, SDK 16299
* Qt 5.11 Git: First Alpha Snapshot; todays Submodule Update
* Visual Studio 2015, 2017 (including Qt Git Dev Branch before enforcing
Clang for no good reason): 8-12 Minutes, depending on CPU utilization
* Visual Studio 2017 15.5.5, Clang 5.0.1 for QDoc: 2 hours, 33 Minutes:
With and without precompiled Headers enabled.

This mornings Submodule Update / Merge did not help at all.

Another Error that comes up for all Modules is:

"libclang: crash detected during AST saving: {
  'filename' : 'C:/temp/qdoc_pch.wtazNK/QtCore.pch'
  'options' : 0,
}"

and

"(qdoc) Could not save PCH file for  "QtCore" 1
QTemporaryDir: Unable to remove "C:\\temp\\qdoc_pch.wtazNK" most likely
due to the presence of read-only files.
        cd tools\qlalr\ && ( if not exist Makefile
C:\QtSrcx64\qtbase\bin\qmake.exe -o Makefile
C:\qt5srcgit\qt5\qtbase\src\tools\qlalr\qlalr.pro ) && C:\jom\jom.exe -f
Makefile prepare_docs
        C:\jom\jom.exe -f Makefile.Release prepare_docs
        cd sql\ && ( if not exist Makefile
C:\QtSrcx64\qtbase\bin\qmake.exe -o Makefile
C:\qt5srcgit\qt5\qtbase\src\sql\sql.pro ) && C:\jom\jom.exe -f Makefile
prepare_docs
        C:\jom\jom.exe -f Makefile.Release prepare_docs
        cd winmain\ && ( if not exist Makefile
C:\QtSrcx64\qtbase\bin\qmake.exe -o Makefile
C:\qt5srcgit\qt5\qtbase\src\winmain\winmain.pro ) && C:\jom\jom.exe -f
Makefile prepare_docs
        C:\jom\jom.exe -f Makefile.Release prepare_docs
        cd network\ && ( if not exist Makefile
C:\QtSrcx64\qtbase\bin\qmake.exe -o Makefile
C:\qt5srcgit\qt5\qtbase\src\network\network.pro ) && C:\jom\jom.exe -f
Makefile prepare_docs
        C:\jom\jom.exe -f Makefile.Release prepare_docs
        C:\qtx64\bin\qtattributionsscanner.exe C:/qt5srcgit/qt5/qtbase
--filter QDocModule=qtsql -o
C:/QtSrcx64/qtbase/src/sql/codeattributions.qdoc
        cd xml\ && ( if not exist Makefile
C:\QtSrcx64\qtbase\bin\qmake.exe -o Makefile
C:\qt5srcgit\qt5\qtbase\src\xml\xml.pro ) && C:\jom\jom.exe -f Makefile
prepare_docs
        C:\jom\jom.exe -f Makefile.Release prepare_docs
        C:\qtx64\bin\qtattributionsscanner.exe C:/qt5srcgit/qt5/qtbase
--filter QDocModule=qtnetwork -o
C:/QtSrcx64/qtbase/src/network/codeattributions.qdoc
        C:\qtx64\bin\qtattributionsscanner.exe C:/qt5srcgit/qt5/qtbase
--filter QDocModule=qtxml -o
C:/QtSrcx64/qtbase/src/xml/codeattributions.qdoc
        cd 3rdparty\harfbuzz-ng\ && ( if not exist Makefile
C:\QtSrcx64\qtbase\bin\qmake.exe -o Makefile
C:\qt5srcgit\qt5\qtbase\src\3rdparty\harfbuzz-ng\harfbuzz-ng.pro ) &&
C:\jom\jom.exe -f Makefile prepare_docs
        C:\jom\jom.exe -f Makefile.Release prepare_docs
        cd 3rdparty\libpng\ && ( if not exist Makefile
C:\QtSrcx64\qtbase\bin\qmake.exe -o Makefile
C:\qt5srcgit\qt5\qtbase\src\3rdparty\libpng\libpng.pro ) &&
C:\jom\jom.exe -f Makefile prepare_docs
        C:\jom\jom.exe -f Makefile.Release prepare_docs
        cd tools\qvkgen\ && ( if not exist Makefile
C:\QtSrcx64\qtbase\bin\qmake.exe -o Makefile
C:\qt5srcgit\qt5\qtbase\src\tools\qvkgen\qvkgen.pro ) && C:\jom\jom.exe
-f Makefile prepare_docs
        C:\jom\jom.exe -f Makefile.Release prepare_docs
        cd tools\uic\ && ( if not exist Makefile
C:\QtSrcx64\qtbase\bin\qmake.exe -o Makefile
C:\qt5srcgit\qt5\qtbase\src\tools\uic\uic.pro ) && C:\jom\jom.exe -f
Makefile prepare_docs
        C:\jom\jom.exe -f Makefile.Release prepare_docs"

Are you already aware of this? Do I need a specific Qt Configure switch?
Or a older LLVM / Clang Version?

Thanks!
Oliver

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