[CMake] Source List Compilation Depending on Configuration

[Jörg Kreuzberger]

Hm, following your suggestion i replace lines
if( "${CMAKE_BUILD_TYPE}" STREQUAL "Release")
add_definitions( -DNDEBUG )
endif()

with 
set_directory_properties( PROPERTIES COMPILE_DEFINITIONS_RELEASE "${COMPILE_DEFINITIONS_RELEASE};NDEBUG" )

it didnt worked. ( inspecting e.q. flags.make and compilation )

if i set COMPILE_DEFINITIONS (without config) it worked. This is the point i stuct like above again.



-----Ursprüngliche Nachricht-----
Von:	Nils Gladitz <nilsgladitz at gmail.com>
Gesendet:	Mo 21.07.2014 12:13
Betreff:	Re: [CMake] Source List Compilation Depending on Configuration
An:	Jörg Kreuzberger <j.kreuzberger at procitec.de>; cmake at cmake.org; 
> On 07/21/2014 11:46 AM, Jörg Kreuzberger wrote:
> > Hi!
> >
> > if i want to add sources to list of compilation i can rely on 
> CMAKE_BUILD_TYPE.
> > E.g if i want to add a source file only for release, i append it to list of 
> source files only then.
> >
> > BUT: how can i do this for multi configuration like vs?
> > So i want to add it to the sources, so that it appears in vs, but only want 
> to compile it in release build?
> >
> > Is there an easy way to handle this?
> 
> I don't think CMake supports configuration specific source files (I 
> assume this might not be supported by all target build systems?).
> 
> It should be possible to use the preprocessor (with configuration 
> specific defines through the COMPILE_DEFINITIONS_<CONFIG> property) to 
> work around it.
> 
> E.g. either guard the source file's content itself with
>    #ifdef CONFIG_SPECIFIC_DEFINE
>    <source file content>
>    #endif
> 
> or add a wrapper source file that does something like
> 
>    #ifdef CONFIG_SPECIFIC_DEFINE
>    #include "config1.cpp"
>    #endif
> 
> or even
> 
>    #ifdef CONFIG_SPECIFIC_DEFINE
>    #include "config1.cpp"
>    #else
>    #include "config2.cpp"
>    #endif
> 
> Nils
> 
> 
>

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