ProjectBuilderMakefileGenerator::openOutput should only change back
Option::output_dir when creating a pbx file inside an Xcode project.
Since the pbx file will be placed inside a different directory than
output_dir when creating an Xcode project, MakefileGenerator::openOutput()
will redirect output_dir to be inside the Xcode project as well. Since
we don't want this redirection, we change output_dir back to what it
was once the call returns. But we should only do this when creating
the whole Xcode project, since only then we create a pbx file that
is different from output_dir in the first place.
A bug with this is seen when making qt_makeqmake.mak (which is a
helper makefile inside the Xcode project). That file will only
regenerate the pbx file (and not the whole Xcode project), which
means that we don't enter the fileName.isEmpty() section, which
means that output_dir should stay as it is.
Task-number: QTBUG-45826
Change-Id: I03d5c3dec395ff4768f9272fd1981c6fd35efb1e
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
d1528919de