[arch-dev-public] RFC: Dropping -DCMAKE_BUILD_TYPE from packages using cmake

Bartłomiej Piotrowski bpiotrowski at archlinux.org
Sun Mar 11 18:11:13 UTC 2018

On 2018-03-10 11:34, Antonio Rojas via arch-dev-public wrote:
> Hi,
>  Currently most of our packages which use the cmake build system are built with -DCMAKE_BUILD_TYPE=Release. This provides a reasonable (according to upstream) set of C(XX)FLAGS defaults which are appended to and override our default C(XX)FLAGS. So, for instance, our cmake packages are being built with -O3 instead of our default -O2. Besides the inconsistency that this brings to our binaries, IMO it's not a good idea to override our default C(XX)FLAGS unless there's a good reason to. This will also cause issues once we start building debug packages by default (-DCMAKE_BUILD_TYPE=Release also adds DNDEBUG).
>  Therefore I'm proposing to drop -DCMAKE_BUILD_TYPE from all our cmake packages, building them with our default C(XX)FLAGS as all other packages. Comments?

Sounds good. I'm also surprised that it's how it works, honestly. Are
LDFLAGS taken into account regardless of CMAKE_BUILD_TYPE? Will there a
to do list to track the progress?


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