On Thu, 18 Dec 2008, Bjørn-Helge Mevik wrote:
Dear developeRs,
As of icc 10, the -c99 option is deprecated, and generates a lot of
warnings when compiling R or R packages.
If you use CC="icc -std=c99" instead of just CC="icc", R's configure
will not add the -c99 option, and the code seems to compile and run just
fine.
It's not really R, but autoconf's macro (I believe called from AC_PROG_CC)
which does
for ac_arg in '' -std=gnu99 -c99 -qlanglvl=extc99
One day autoconf will catch up with icc and try -std=c99 as well. (It may
already have done so: we are using the 3-year-old 2.61 as PD has that on
the release system, Mac OS X still does ....)
(Please don't hesitate to let me know if this is a bad idea. :-)
It is fine: I'll add a note to the manual.
--
Regards,
Bjørn-Helge Mevik
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Brian D. Ripley, rip...@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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