Question

I want to set configuration variable (path, in particular) in CMakeList.txt for my project, which user can override in CCmake.
But if i just use
set(VAR <value>)
VAR is not available for changing in CCMAKE, how can i do that?

Answer 1

If you add the CACHE part to your set command, it will be visible in CCMake. So, e.g.

set(VAR <value> CACHE PATH "Some details about VAR")

The types of variable which appear in CCMake are FILEPATH, PATH, STRING and BOOL.

For full details, run:

cmake --help-command set