truncate(1): Fix cross-build CI failure due to missing fspacectl

[khng]

Summary

For other platforms, fspacectl(2) is absent. This commit masks out the
calls to fspacectl(2) and replace them with a ENODEV errno.

Sponsored by: The FreeBSD Foundation

[khng]

I must admit this is kind of dirty.

[khng]

Use SPACECTL_DEALLOC to allow BOOTSTRAP_ALL_TOOLS from lower version

[markj]

usr.bin/truncate/truncate.c

68 ↗

(On Diff #94029)

You can't just use #ifdef __FreeBSD__?

211 ↗

(On Diff #94029)

ENOSYS probably makes more sense?

[khng]

usr.bin/truncate/truncate.c

68 ↗

(On Diff #94029)

Bootstrapping from lower version still requires the system call to be presented if BOOTSTRAP_ALL_TOOLS.

[khng]

ENOSYS suggestion

[markj]

usr.bin/truncate/truncate.c

68 ↗

(On Diff #94029)

But isn't that an internal flag, only set when cross-building? In any case I think the usual solution is to provide stub implementations in tools/build, like commit d80f1dd1d78ddebee8de9cfba9413032a1fedba8 did. I'm not an expert in this area, though, so I will bow out now. :)

[arichardson]

I doubt this is needed for bootstrapping, so using the current ifdef looks good to me. It would be good to see if/which flags are used during the build that aren't universally supported, but for now this should be sufficient.

A wrapper that returns enosys in tools/build might be a bit cleaner though since it avoids ifdefs here.

usr.bin/truncate/truncate.c

68 ↗

(On Diff #94029)

I generally set that flag when building on FreeBSD to ensure bootstrapping isn't broken.

[khng]

Introduce stub in tools/build to eliminate the ifdef in truncate(1)

[khng]

SYSINCS -> INCS