CMake: Fix tst_qmake to work for configs with cross-compiled tools

When cross-building Qt with CMake to target qemu configs in the CI,
we specify the -DQT_BUILD_TOOLS_WHEN_CROSSCOMPILING=ON option to also
cross-build tools (like qmake).

In this case, $prefix/bin/qmake points to the cross-compiled qmake,
and the shell script that wraps the host qmake is called
$prefix/bin/host-qmake instead.

In such a scenario, tst_qmake ends up running the cross-compiled
qmake, which thinks that it's being run on device (via user-space
qemu emulation) and doesn't specify the sysroot when computing include
paths, link paths, etc. This causes the test building to fail in
various ways.

To fix the test, check for the existence of the host-qmake wrapper,
and if it exsists use it instead.

Task-number: QTBUG-86053
Change-Id: Iaa4afdf11b17f23abef873dd15b1ed950126ab8c
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

0 files changed, 0 insertions, 0 deletions