Re: geography/geos needs gcc >= 8 ?

[Greg Troxel <gdt%lexort.com@localhost>]

Makoto Fujiwara <makoto%if.t.u-tokyo.ac.jp@localhost> writes:

> It seems to me 
>   GCC_REQD+=		8
> is necessary for geography/geos 

  +# C++17 is not enough for
  +# Noder.cpp:15:10: fatal error: filesystem: No such file or directory
  +GCC_REQD+=		8

You left out what you are building on, but I'm guessing it is something
ancient.  Perhaps NetBSD 9?

I'm not happy about how c++17 doesn't mean c++17 in compiler selection,
but that's how pkgsrc is.  I am guessing that this uses filesystem --
which is as I understand it part of the c++17 standard, but not part of
pkgsrc's c++17 flavor -- in which case, the right fix is to add
"filesystem" to USE_CXX_FEATURES.

(Plus, while it's not fair to non-NetBSD, we align required versions to
the "limited versions set" in gcc.mk, to avoid building every single
version of gcc.)

I just build-tested with filesystem in features on NetBSD 10, and that
was fine, so I committed it.  I no longer have a NetBSD 9 amd64 system,
and it's formally unsupported.