[Info-vax] Old work-arounds v. new <stdint.h> (et al.)

[Craig A. Berry]

On 6/20/22 4:20 PM, Steven Schweda wrote:
>     Some of my old work-arounds for missing <stdint.h> (and its friends),
> for example, my declarations of [u]intmax_t, now conflict with those in
> the new <stdint.h>.
> 
>     Is there a C macro which would reveal whether <stdint.h> exists,
> and/or <inttypes.h> has some actual content, and so on?  Perhaps a test
> like: "__STDC_VERSION__ >= 199901"?
> 
>     Here, "new" means something like "VSI C V7.4-001 on OpenVMS IA64
> V8.4-2L3", and "not new" would be something from HP[E] which I can't
> easily run now.  I'd prefer to keep things working in older
> environments, but I might be too lazy to use a "configure" script to
> deal with this stuff.
> 
>     Is there some documentation where I should have found this already?

I haven't tried it but most likely with:

#if __CRTL_VER < 80500000
    // do stuff that collides with C99 ECO
#endif

They weren't initially going to bump the CRTL version with the C99 ECO,
but I think by the final release ended up doing so.

Or you can disable the C99 changes by compiling with:

     CC/DEFINE=(__CRTL_VER_OVERRIDE=80400000)