Top-level configure fails unless I have network

During a recent network outage, I discovered that I cannot configure to do a build when I lack network.
The culprit appears to be the googletest component of qtwebengine, despite my configure command-line including -skip qtwebengine.
When qtwebengine is excluded from the build by that option, my ability to build should not be held hostage by The Panopticon wanting network access as a prerequisite for something I don't need.

[QtTools] [1/9] Creating directories for 'googletest-populate'
[QtTools] [1/9] Performing download step (download, verify and extract) for 'googletest-populate'
[QtTools] -- Downloading...

This shouldn't even be attempted, but its failure blocked my build.

Work-around: don't bother testing whether my changes to qtbase break things in other modules, just configure the one module I was working on.