And I have a clue. I download version 0.9 (which is confusing is 0.8 the current in development or 0.9?) and the --debug option worked. The execution halts while executing clang static analyzer, after all Compiling/Analyzing have succeeded:
// ... a log previous logs
Analyzing NotificationBadge.m - Done
Clang Static Analyzer UIImageView+RetriableFetch.m - Done
Clang Static Analyzer AppDelegate.m%
I have no idea what the "%" means. Also when I execute Product/Analyze in Xcode it works. If I remove -enable-clang-static-analyzer the execution finishes with exit code zero in both 0.8rc1 and 0.9.dev.6a4451b.
So how can I get more information about the problem? I don't want to have the static analyzer disabled as a solution.