Could we fix parsing on pre-release macOS versions to avoid a bogus error in checks?

[barracuda156]

@dmurdoch Could we support parsing devel versions of macOS? I get this when running tests:

Error : invalid version specification ‘10.0.0d2’

This does not prevent tests from running further, but it would be nice to get rid of this. The version is valid in fact, and Apple kern headers specify pre-release versions. It is not an error.

* using R version 4.3.3 (2024-02-29)
* using platform: powerpc-apple-darwin10.0.0d2 (32-bit)
* R was compiled by
    gcc-mp-13 (MacPorts gcc13 13.2.0_4+stdlib_flag) 13.2.0
    GNU Fortran (MacPorts gcc12 12.3.0_3+stdlib_flag) 12.3.0
* running under: OS X Snow Leopard 10.6

P. S. This is the first time I see it with an R package in fact. So this should be avoidable, I believe.

[dmurdoch]

That message isn't coming from rgl code. There's a message like that in base R in .make_numeric_version(), which is called by numeric_version(), package_version(), and R_system_version(). rgl calls getRversion() during configuration, so that might be the trigger; it calls package_version(). However, I don't think that's something I can avoid.

If you can narrow down the location of the source of the message, it's possible I could fix it.