rcs @5.9.4: error: '_Noreturn' keyword must precede function declarator

[inyeollee]

rcs-5.9.4 build failed, log attached.

[avysk (Alexey Vyskubov)]

Cc Me!

[steele@…]

Cc Me!

[pcollinson]

Here's a workaround, it's probably against all the rules but here goes. Since Apple in its infinite wisdom has removed rcs from Xcode, I need to find another way of getting it now for 10.11.

Once you've found that things don't work, find the source of rcs.

On my system that's

/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_devel_rcs/rcs/work/rcs-5.9.4/src

Edit (and you'll need to sudo) base.h

Find the line:

#define exiting  _Noreturn

and replace it by

#define exiting  ;

Then

sudo port install rcs

will work. It builds the system and installs it.

The _Noreturn keyword is a C11 artefact and the build can happen without it (it seems). Caveat: I really know zilch about C11. I've done some rough testing and rcs appears to work.

[davidfavor (David Favor)]

The above fix does produce a clean build + what does appear to be a functional RCS.

This is a life saver, as RCS is such a simple way to quickly version control any random file.

Seems like this fix is so simple it could make make it into a patch.

[inyeollee]

Patch against rcs-5.9.4 to fix _Noreturn issue.

[inyeollee]

RCS source has syntax errors regarding _Noreturn keyward usage, now CLang is catching them. The fix is to rearrange _Noreturn keyword (exiting macro), from:

    extern void Oerror (void) exiting;

to:

    exiting extern void Oerror (void);

There are about 10 instances of this usage in base.h, b-fb.h, and b-complain.h. Patch uploaded - rcs.5.9.4_Noreturn.patch.

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #49304.

[kurthindenburg (Kurt Hindenburg)]

Cc Me!

[kurthindenburg (Kurt Hindenburg)]

done r141984

[ryandesign (Ryan Carsten Schmidt)]

And r142067