Sylvain Benner wrote: > I don't know if this is possible but you can set your variable to an > empty string. > > SET( SOME_OPTION "") > >> Is it possible to remove variables from the cache ? For example: >> >> OPTION( BUILD_X "Descr" OFF ) >> >> IF ( BUILD_X ) >> SET( SOME_OPTION "Hello world" CACHE) >> ELSEIF (BUILD_X) >> UNSET( SOME_OPTION ) >> ENDIF ( BUILD_X )
If BUILD_X is on and SOME_OPTION is set by the user, then BUILD_X is turned off, and then back on the user may expect SOME_OPTION to have retained its value. You can convert it to an INTERNAL cache entry so that it does not show up in the GUI when it is not needed and then use FORCE to change its type back later. Here is an example macro to do that for on/off sub-options: http://www.vtk.org/cgi-bin/viewcvs.cgi/CMake/vtkDependentOption.cmake?rev=1.5&view=markup -Brad _______________________________________________ CMake mailing list [email protected] http://www.cmake.org/mailman/listinfo/cmake
