How to set CXXFLAGS with CMake?

[Allen Winter]

On Sunday 16 April 2006 18:18, Michael Pyne wrote:
> Hi all,
> 
> I've had a problem report from a kdesvn-build that when setting CXXFLAGS to 
> something like -march=i686 that CMake would complain about the '=' character.  
> He also reports that setting the CFLAGS environment variable instead does 
> work.
> 
> kdesvn-build passes CXXFLAGS to CMake like this right now:
> 
> cmake -DCMAKE_CXX_FLAGS="$cxxflags" other-options...
> 
> The cxxflags are correctly passed as one argument (i.e. no shell IFS stuff is 
> going on).
> 
> Is there a preferred method to set CXXFLAGS for CMake, or am I doing the right 
> thing and it's a CMake bug?  The CMake version is the 20060317 snapshot.
> 
Hi mpyne,

One idea...

We could introduce a new option for kdelibs/cmake/modules/FindKDE4Internal.cmake,
called say CMAKE_CXX_OPT_FLAGS_RELEASE. 

This variable gets appended onto CMAKE_CXX_FLAGS_RELEASE.   Note that it would only be used
with release builds.

So you'd call cmake with the extra -DCMAKE_CXX_OPT_FLAGS_RELEASE="-march=i686"

Ditto for CMAKE_C_FLAGS_RELEASE

-Allen

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