[Rd] Cannot override default -O3 flag on Winodws, dll does not have symbols
Prof Brian Ripley
ripley at stats.ox.ac.uk
Thu Jan 10 08:55:29 CET 2013
On 10/01/2013 02:58, rtaylor wrote:
> In trying to compile a package with c code using Rtools, -O3 is added by
> default. This comes from Makeconf? Compiler flags (CFLAGS="-O0 -g" ) set in
> src/Makevars.win or src/Makevars appear before this.
> nm pkg.dll reveals no symbols!
That is not a function of using -O3, if there is useful code (as there
needs to be in an R package since you need to link to entry points).
> How can I compile a Windows package with "-O2 -g"?
By following the manuals. 'Writing R Extensions' points you to your
local version of
But it you want debug symbols, read about how to build a debug version
of R in that manual (and use -gdwarf-2).
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> Sent from the R devel mailing list archive at Nabble.com.
> R-devel at r-project.org mailing list
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)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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