Re: Older Lua versions no longer compile under current gcc

[Luiz Henrique de Figueiredo <lhf@...>]

I've tried lua-all with gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609.
Everything worked fine, except for these:

cd lua-2.1 && make all
./lua test.lua
*** buffer overflow detected ***: ./lua terminated

cd lua-2.2 && make all
./lua test.lua
*** buffer overflow detected ***: ./lua terminated

cd lua-3.2 && make all
./lua test.lua
make[1]: *** [all] Segmentation fault (core dumped)

Using -O0 instead of -O2 fixes the first two but not the third one.
That Lua 3.2 fails to compile under gcc 4.0+ is already mentioned in
the README.
I'd appreciate if someone can track down what exactly needs to be
changed to make these versions compile and run with -O2.
Thanks.
--lhf