libc-compat: add new symbol that's now needed

src/compat/glibcxx_compat.cpp

@@ -64,6 +64,8 @@ template istream& istream::_M_extract(unsigned short&);
 
 out_of_range::~out_of_range() _GLIBCXX_USE_NOEXCEPT { }
 
+length_error::~length_error() _GLIBCXX_USE_NOEXCEPT { }
+
 // Used with permission.
 // See: https://github.com/madlib/madlib/commit/c3db418c0d34d6813608f2137fef1012ce03043d