R-beta: Sun native compiler SC2.0.1, R-0.62.x

gordon.harrington@uni.edu gordon.harrington at uni.edu
Sun Sep 13 23:56:44 CEST 1998

Prof Brian D Ripley <ripley at stats.ox.ac.uk> wrote: 
> I just wanted to point out that is a _very_ old SunPro compiler: the
> current version on both Solaris and SunOS is at least SC4.2, and I see we
> used SC3.0.1 in 1994.  I doubt if people are trying gcc of similar age
> (2.5.x?), and if they were I would expect problems with header files.

That is interesting. My CD-ROM with SC2.0.1 is dated August, 1995 and my OS is
Solaris2.4. Apparently my SunPRO is older than the date while I know my network
routines are Solaris2.5 which was released later.. 

> On Solaris fairly recent versions of cc work: as indeed is listed in
> PLATFORMS.  Those of us who have tried both cc (SC4.x) and gcc (2.8.1) with
> R see very little advantage to cc: I posted some comparative timings a
> while ago (possibly to R-devel) that showed negligible differences.

I ran some timings too with similar results but Sun suggested there were
differences at maximum optimizaton which I did not test. Clearly I should stay
with gcc which I can afford to keep more up to date.
> A small point for R-core: PLATFORMS lists rather precise OS versions (e.g.
> Solaris 2.5.1) but not compiler versions which are probably more critical. 

Gordon M. Harrington		Mail:	3720 Village Place, #6308
Professor Emeritus			Waterloo, IA 50702-5848
University of Northern Iowa 	Phone:	319-291-8535
gordon.harrington at uni.edu	Fax:	319-291-8324

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