rasdaman compiled on Ubuntu 18.04 vagrant VM fails to start

[Dimitar Misev]

In particular, it has to be compiled in Release mode. Running directql then produces a segfault with stacktrace:

Request: 'select c from RAS_COLLECTIONNAMES as c'... parsing... checking semantics... 
Program received signal SIGSEGV, Segmentation fault.
0x00005555557e5ed3 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > __gnu_cxx::__to_xstring<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, char>(int (*)(char*, unsigned long, char const*, __va_list_tag*), unsigned long, char const*, ...) [clone .constprop.42] ()
(gdb) bt
#0  0x00005555557e5ed3 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > __gnu_cxx::__to_xstring<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, char>(int (*)(char*, unsigned long, char const*, __va_list_tag*), unsigned long, char const*, ...) [clone .constprop.42] ()
#1  0x00005555557e6084 in r_Nullvalues::toString[abi:cxx11]() const ()
#2  0x000055555580a123 in SQLiteQuery::finalize() ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)