[CMake] Running a function as a build target

[Nils Gladitz]

On 09.06.2014 12:58, Rick McGuire wrote:
> Is it possible to invoke a script function as part of a target?  I 
> have a build step where I need to process a bunch of variable values 
> before building a particular target.  All of the custom targets 
> require a COMMAND, not a function.  I thought maybe I could push this 
> off to a script invoked by cmake -P, but a quick test revealed that 
> the script does not inherit the variable environment and the variables 
> I'm working with cannot be easily passed using -D values on the 
> command line.

Script mode (-P) is the only way to invoke a cmake script function as 
part of a custom target.
If passing values via -D is problematic perhaps you could generate the 
scripts themselves (e.g. configure_file()) or generate an include file 
for the script with the required values (and pass its path with -D).

Nils