| src/Makefile.am:42: warning: source file '$(MAXTRISSL)/core/osdep/POSIX/osdep.c' is in a subdirectory,
| src/Makefile.am:42: but option 'subdir-objects' is disabled
| automake: warning: possible forward-incompatibility.
| automake: At least a source file is in a subdirectory, but the 'subdir-objects'
| automake: automake option hasn't been enabled. For now, the corresponding output
| automake: object file(s) will be placed in the top-level directory. However,
| automake: this behaviour will change in future Automake versions: they will
| automake: unconditionally cause object files to be placed in the same subdirectory
| automake: of the corresponding sources.
| automake: You are advised to start using 'subdir-objects' opti