The Android build script has a couple of minor differences to the iOS and Emscripten build scripts that are relatively easy to accomodate:

• The build target only allows you to to specify a host, not build or hosts or all
• The clean target doesn't have allow you to specify a host at all, so you can't delete all host builds without also deleting the build python, or clean a single host (at least, not with the clean command)
• The cache folder for downloads isn't configurable
• The cross-build directory isn't configurable.

We should aim for feature parity and consistency of UI between these scripts, wherever possible.

Linked PRs

• gh-146450: Normalise feature set of Android build script with other platform build scripts #146451
• [3.14] gh-146450: Normalise feature set of Android build script with other platform build scripts (GH-146451) #148065
• [3.13] gh-146450: Normalise feature set of Android build script with other platform build scripts (GH-146451) #148066
• gh-146450: Ensure Android gradle build uses custom cross-build dir #148319
• [3.14] gh-146450: Ensure Android gradle build uses custom cross-build dir (GH-148319) #148470
• [3.13] gh-146450: Ensure Android gradle build uses custom cross-build dir (GH-148319) #148471