musl implements support for malloc.h, but it is only a stub. we do not use
any of the GNU-specific malloc interfaces, so just use POSIX stdlib.h instead.
ref #10794
The array struct aligned size to 64 bit on x86_64 which caused bad things
to happen.
We use size_t to make sure the size element is correct regardless arch.
Solution found by Timo.
Instead of having a null pointer, use a dummy array which just
says the array is empty. This helps in multiple places of the code
which would otherwise need explicitly need to check first if the
array exists. This has been cause of multiple seg.faults in the
past as the array check is easily omitted.
This also removes (or fixes) all existing checks accordingly.
Ariadne Conill
kpcyrd