prompting user for variables before configuration

Usage
1

Is there a way to ask the user for some variables before running configuration (possibly in cmake-gui)?

So far, I must run the configuration that populates the cache and then displays available cache variables (but not all possible ones as some are made available according to others values…).

Is there a way, for instance to parse in advance the cmakelists for all set with CACHE option?

My concerns comes from some third party cmakelists that makes assumptions, for instance, on source directory and if they don’t find them were they are expecting, triggers a download in an unexpected location, while the sources already exist elsewhere

2

Nope. However, I generally address this by supplying presets for common scenarios as well as preset building blocks that can be combined in a mix-and-match style for users with specific scenarios not addressed by an existing preset.