IRRToolSet 5.1.2 released , error: possibly undefined macro:

[Nick Hilliard (INEX)]

Alexandr Gurbo wrote on 06/11/2019 14:45:
> I have the same problem with autoconf on Centos 8.
> This trick helps me compile utilities, but in usage "peval" I received "Segmentation fault(core dumped)".

the issue here is that code depended on being able to set the 'this' 
pointer in c++ classes to be NULL.  Although is undefined behaviour, 
fixing it would mean writing a lot more code and in the case of 
irrtoolset, it just isn't worth anyone's while.

I've disabled the compiler check using "-fno-delete-null-pointer-check", 
which carpets over the issue.  This hack is the only change between 
5.1.2 and 5.1.3.

Nick