debugfull & clang/ccache

[Andreas Pakulat]

Hi,

On Mon, Jul 15, 2013 at 10:52 AM, Milian Wolff <mail at milianw.de> wrote:

> Hey guys,
>
> the handling of CMAKE_BUILD_TYPE=debugfull in FindKDE4Internal.cmake is
> guarded by `if (CMAKE_COMPILER_IS_GNUCXX)` so it won't work if you use
> clang.
> It gets worse if you use ccache as well, i.e. via
>

Hmm, interesting, I just noticed that Debian seems to have dropped support
for Debugfull completely, only 1 reference in the file and that is in a
comment.

I'd say an "OR CMAKE_CXX_COMPILER_ID MATCHES 'clang'" should be sufficient,
the cmake manual hints towards the compiler id being set to 'clang' (in a
more or less unrelated part, but the other mentioned id's match whats in
that variable on the corresponding compilers). So the line should be

if (CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES 'clang' )

export CC="ccache /usr/bin/clang -Qunused-arguments"
> export CXX="ccache /usr/bin/clang++ -Qunused-arguments"
>
> Then probably cmake won't even figure out I'm actually using clang, no?
>

At least with gcc this is not an issue and I'd expect this to be not an
issue with clang either since CMake runs the compile with --version or
something like that to find out what compiler it has. Unless of course you
use the CMAKE_CXX_COMPILER variable.

Andreas
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