This reverts commit 16c333b1a3.
I tried to build everything in Ubuntu images, but
- this introduced a regression (ignores $BUILD_OPTION)
- made that we don't use -Werror (when we should)
I tried to fix the use of the first, but it would involve more changes
than I prefer. On the second, we cannot enable -Werror, as FlexRIC does
not build warning-free (in Release mode). We thus have to build only the
targets that we require, and therefore we can keep using build_oai,
which is the simplest option (cf. the first point).
Compile all targets in Ubuntu build to avoid breakage of software.
Remove ldd in build dockerfile, as we don't need that (can also be
inspected manually).
Robert Schmidt