qmake generates wrong path to qrc qmlcache

thesourcehim

After I installed mingw32 5.14.2 Qt I started to get strange bug in generated Makefile. My project includes a pri that has qrc file like this:
RESOURCES += $$PWD/kbpcomponents.qrc
In Makefile I now have this buggy line:

Makefile: E:/projects/git/dep32/askroclient/askroclient.pro ../../../../Qt/5.14.2/mingw73_64/mkspecs/features/spec_pre.prf \
                <skipped alot of lines>
		E:_projects_git_dep32_qmlutils_KbpComponents_kbpcomponents_qmlcache.qrc \
		askroclient_qmlcache.qrc
	$(QMAKE) -o Makefile E:/projects/git/dep32/askroclient/askroclient.pro -spec win32-g++ CONFIG+=qtquickcompiler

There should not be full path to qmlcache as it is located in build directory and all slashes are replaced with underscores.
I did not have this problem with 5.13.2. Also it does not happen with linux version of 5.14.2.

thesourcehim

Fixed
https://bugreports.qt.io/browse/QTBUG-84901

thesourcehim

Ok, apparently Qt version is not a problem. The problem is caused by combination of two facts:

qrc file included by path, not just name, because it's not in main project directory
Build directory and project directory are on different drives (build directory is on C: and source code is on E:)

If I switch build directory to the same drive then the problem is gone. Perhaps qmake under Windows should also replace colons with underscores, not only slashes.

SGaist

Hi,

If this worked before then you may have found a regression.

Can you reproduce that with a minimal compilable project ?

thesourcehim

I don't believe this is a regression, I just didn't try build my project on a different drive before. qmake replaces all slashes with underscores when generating qmlcache file for a qrc because file name can not contain slashes, but it forgets that under Windows there may be also a colon in the path which should be replaced too. But the colon appears only if the build directory is on a different drive, otherwise generated path is relative and does not start with drive letter.

SGaist

Good point

In any case, it still is a bug, you should check the bug report system to see if it's something known. If not, please open a new report providing a minimal compilable example.

thesourcehim

Fixed
https://bugreports.qt.io/browse/QTBUG-84901

SGaist

Thanks !