[libxzero] hello_staticfile: make use of logging API
libbase: space-fu
Merge commit 'ab73ab9a8781dc040854e102b42bf47f11d49610'
Merge commit '61c5396c7d469d68fc3de42683f0219a4803906d'
libbase: cmake cleanup
libbase: some cmake/apple improvements
[libbase] Pipe: platform-improvements wrt. pipe2-vs-pipe
[libbase] Pipe: properly propagate error code to the caller
[libbase] cmake cleanup
[libxzero] cmake polishing
[libxzero] cmake polishing
[libflow] .gitkeep for 3rdparty/ dir
Merge commit '80841cacfe72b11584ae8a83a56fa98b28ff7d4a'
Merge commit '4f437aa75de79cd5ecf3ed037086f558bc7a1667'
Merge commit '9b100765bad3f946dc9c4ab1b948b96546fa913b'