Re: master 37889523278: Add new `swap` macro and use it

[Gregory Heytings]

> > Further proving my point, neither variant of typeof compiles with Sun C 
> > 5.8, a C99 compiler that does presently produce working Emacs builds.
>
> Which system configuration uses this compiler?  When was that compiler 
> released?  Are there newer versions of that compiler that do support one 
> of these keywords?

Sun C 5.8 is part of Sun Studio 11, which was released in 2005.  Sun 
Studio 11 is an (optional) extension package for Solaris 10 / SunOS 
5.10... on which GCC (3.4.3) is installed by default.

Sun C 5.9, part of Sun Studio 12 (which is likewise an optional extension 
package for that same operating system), released in 2007, supports the 
typeof operator.