[CMake] re-running cmake with different flags doesn't work

[Werner Smekal]

Hi,

if you change cmake settings it's always best to delete the build  
folder. So in your case:

cmake ../
make
rm -rf ../build/*
cmake -DCMAKE_CXX_FLAGS=-g ../
make VERBOSE=1

should bring the desired results.

Werner


On 25.07.2008, at 10:29, Andreas Pakulat wrote:

> Hi,
>
> I've just noticed that re-running cmake and changing -DCMAKE_CXX_FLAGS
> doesn't work as one would expect. This claims to be rebuilding the
> makefiles, however after running a make clean and make VERBOSE=1 I  
> don't
> see the flags being applied.
>
> To make this clear, what I'm doing is:
>
> cmake ../
> make
> cmake -DCMAKE_CXX_FLAGS=-g ../
> make clean
> make VERBOSE=1
>
> And the -g flag is not there on the g++ line. Sample CMakeLists.txt:
>
> ,----
> | add_executable(foo main.cpp)
> `----
>
> Looking at the cache I can't see the -g flag there - except in the  
> DEBUG
> versions where it always appears.
>
> Should I file a bugreport?
>
> Andreas
>
> -- 
> You'll be called to a post requiring ability in handling groups of  
> people.
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--
Dr. Werner Smekal
Institut fuer Allgemeine Physik
Technische Universitaet Wien
Wiedner Hauptstr 8-10
A-1040 Wien
Austria

email: smekal at iap.tuwien.ac.at
web: http://www.iap.tuwien.ac.at/~smekal
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