[cmake-developers] Review Request: Topic ExternalProject_exclude-from-all

[Brad King]

On 03/27/2014 11:34 AM, Brad King wrote:
> A simpler way to look for the argument:
> 
>  if(";${ARGN};" MATCHES ";EXCLUDE_FROM_ALL;([^;]*);")
>    # ... test CMAKE_MATCH_1
>  endif()

Actually you don't need to parse the arg ahead of time.
The "ALL" option to add_custom_target just tells it to
*not* set the EXCLUDE_FROM_ALL target property.  Instead
you can leave out "ALL", parse the args as normal, and
then add

 set_property(TARGET ... PROPERTY EXCLUDE_FROM_ALL FALSE)

when the EXCLUDE_FROM_ALL option is not set.

-Brad