Consider some application that is intended to be built in its destination directory and whose subdirectory structure does not respect Linux conventions.  Assume in particular that there is no install target in Makefile.  Where can such bundle be installed?It seems that, according to Filesystem Hierarchy Standard, the only appropriate place is /opt.  Is this correct?  Can a software bundle be simply dropped into /opt?
How to package (where to install) a stand-alone software bundle
software installation;directory structure;packaging