[Rd] can't compile on OSX: unsetenv header issues

[Prof Brian Ripley]

On Mon, 8 Jan 2007, Seth Falcon wrote:

> Hi,
>
> A recent change has R failing to compile (for me) on ppc OSX 10.4.8 like this:
>
> ../../../../R-devel/src/main/datetime.c: In function `reset_tz':
> ../../../../R-devel/src/main/datetime.c:511: error: void value not ignored as it ought to be
>
> I suspect there is some sort of configure magic that needs to happen
> to get the POSIX compatible unsetenv on OSX.  Here's what I think is
> the relevant bit from stdlib.h, but I'm hoping someone with more OSX
> experience will recognize what needs to be done.

So do I, but does defining __DARWIN_UNIX03 at the head of that file (and
sysutils.c) solve this?

OSes who adopt pretty standard function names with non-standard 
implementations used to be commonplace, but I had rather hoped we had seen 
the last of this after Single Unix Standard, POSIX ....


> #if __DARWIN_UNIX03
> int      unsetenv(const char *) __DARWIN_ALIAS(unsetenv);
> #else /* !__DARWIN_UNIX03 */
> void     unsetenv(const char *);
> #endif /* __DARWIN_UNIX03 */
>
>
> + seth
>
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>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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