[CMake] Forwarding parameters to cmake through cmake-gui

[J Decker]

 I have a macro ..... (maybe it has a horrible name...)

macro( DEFINE_DEFAULT variable default )
    if( NOT DEFINED ${variable} )
      #message( "variable ${variable} not defined (command line)" )
      set( ${variable} $ENV{${variable}}  CACHE STRING "no description
available")
      if( "${${variable}}" STREQUAL "" )
       set( ${variable} ${default} CACHE STRING "no description available")
     endif( "${${variable}}" STREQUAL "" )
   endif( NOT DEFINED ${variable} )
endmacro( DEFINE_DEFAULT variable )


usage:
   DEFINE_DEFAULT( SOME_OPTION "c:/path/to/something" )

then you can...

set SOME_OPTION=c:/real/path/to/thing  cmake <source path>

-or-

cmake -DSOME_OPTION=C:/other/path/to/thing <source path>

-or-

cmake-gui <source path>
(click configure)
set the option appropriately.


On Fri, Nov 1, 2013 at 7:47 AM, physhh . <physhh at gmail.com> wrote:
> I've already searched for a feature like this but was not able to find it.
> Then i've looked up in the cmake-gui source code but couldn't find anything
> related.
>
> What I'm looking for:
> If cmake is used directly from the command line, it's possible to pass a
> bunch of options
> (http://www.cmake.org/cmake/help/v2.8.12/cmake.html#section_Options). This
> is nice because with this it's possible to use default settings - even if
> the cache get deleted. I'm actually really interested in this because it
> would be possible to set the CMAKE_MODULE_PATH variable via batch file -
> which is neat for custom find modules in custom locations.
>
> My Request:
> I would like to see a feature which makes it possible to pass command line
> options to cmake-gui which get forwarded to cmake when it gets called. To
> make this work the cmake-gui could look for parameters which look like
> "forward-*" (where the * is a cmake option name) and pass it to cmake.
>
> Are there any counter-arguments against this?
> In my opinion it would make things much cleaner.
>
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