When passing a directory to qmake, it tries to detect a .pro file in
that directory. Whenever the detection failed, qmake printed an error
message like "Access is denied." or "file to open is a directory".
Now, qmake prints an actually helpful error message:
***Cannot detect .pro file in directory '../foo'.
QMake expects the file '../foo/foo.pro' or exactly one .pro file in
the given directory.
Fixes: QTBUG-34673
Change-Id: I3d21ead247734172eee4eb68d3f9782d3ddaea52
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
9b2bf17f3e