Re: [PATCH 1/2] maint.mk: Split long argument lists

[Bruno Haible]

Roman Bolshakov wrote:
> But then we will need to correct calculation of VC_ARG_MAX. We can take
> formulae from [2]:
> expr `getconf ARG_MAX` - `env|wc -c` - `env|egrep '^[^ ]+='|wc -l` \* 4 - 2048

This formula assumes that a pointer in the 'environ' array is 4 bytes long.
On 64-bit platforms it surely is 8 bytes long.

More generally, I find this formula too fragile. It assumes so many things.
I would prefer a formula which does not attempt to produce the highest possible
value, but makes less assumptions. How about
  expr `getconf ARG_MAX` / 2
?

Bruno