[CMake] Add configuration support to include_directories()

[Michael Jackson]

n Dec 23, 2008, at 11:56 AM, Bill Hoffman wrote:

> Robert Dailey wrote:
>
>> For debug: C:\foo\bar-d
>> For release: C:\foo\bar
>> Note that the text "Debug" or "Release" is not used in the include  
>> path, so simply using CFG_INTDIR would not work I don't think  
>> (Unless I'm missing something again). This is why in CMake I need  
>> to do something like this:
>> if( debug )
>>    include_directories( C:\foo\bar-d )
>> else()
>>    include_directories( C:\foo\bar )
>> endif()
>> Thanks again to everyone for their continued help.
>
> OK, well, since VS supports multiple configurations at VS time, and  
> not CMake time, it is impossible to have the above if statement.    
> There is just no way to know what configuration the user will  
> pick.   The user gets to pick a long time after that if statement  
> was executed by CMake.  So, I think you are sort of out of luck  
> right now...   What CMake needs is per configuration  
> include_directories for this to work.   One thing that might work as  
> a work around, is that you could copy the header file via a custom  
> command into your build tree, and then use the CFG_INTDIR approach.
>
> -Bill
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I am just thinking out loud here so if I am totally off the mark just  
ignore.

So the problem is including /foo/bar-d or /foo/bar for debug and  
release.

For a release build there is the -NDEBUG definition and for Debug  
there is the -DEBUG compiler definitions defined (or something that at  
effect)

In your own project have a header file (MySetup.h) with something like:

#ifdef NDEBUG
  #include "bar/setup.h"
#else
  #include "bar-d/setup.h"
#endif

Then you need to just have C:\foo on the include path.

I _think_ something like that might work. Not sure how scalable or  
maintainable that might be since I have never used wxWidgets.

HTH
---
Mike Jackson                 www.bluequartz.net