Default build type, warning to packagers of git checkouts

[David Faure]

Dear packagers,

please be informed that ECM now makes the default build type to be "Debug"
*when* building from a git checkout.

The recommended way to package our code is from release tarballs,
where nothing has changed, but I seem to remember that some of you use git tags instead. In that case, make sure to pass -DCMAKE_BUILD_TYPE=Release
(or RelWithDebInfo) to cmake if you don't want an unoptimized debug build.

https://commits.kde.org/extra-cmake-modules/a212a92190d4b85d9276af9ee70f66dd140fcdb0

-- 
David Faure, faure at kde.org, http://www.davidfaure.fr
Working on KDE Frameworks 5