If INSTALL_LIBEXECDIR was set to something != "libexec", qt-configure-module contained the wrong path to qt-cmake. Fixes: QTBUG-128137 Pick-to: 6.5 6.7 6.8 Change-Id: Ic095ff8cb804bbdd72e238e75ac867b7cc3bd478 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>