On Wed, 29 Sep 2010, Konis Kjell wrote:
Hello,
I just tried configuring R to use architecture-dependent subdirs
$ r_arch=x86_64 ./configure --prefix=/u/smat/konis/testdir
on a Debain Squeeze box
$ uname -a
Linux smapc007 2.6.32-5-686 #1 SMP Sat Sep 18 02:14:45 UTC 2010 i686
GNU/Linux
After building and installing, the Rconfig.h ended up in
.../lib/R/include/x86_64 but R.h still includes it as
#include <Rconfig.h>
That should be OK, though. etc/Makeconf will include
R_XTRA_CPPFLAGS = -I$(R_INCLUDE_DIR) -I$(R_INCLUDE_DIR)/x86_64
so Rconfig.h will be found when packages are installed.
I noticed that the CRAN binary for Mac OS X has the following
.../lib/R/include/Rconfig.h. What step am I missing that causes this file
to be generated?
I suspect it is a back-compatibility fix for packages with Makefiles
that don't use R_XTRA_CPPFLAGS.
I don't have that file on my Mac build (nor my R 2.12.0 Windows
builds, both of which use subarchitectures) and I've never seen an
issue.
Thanks,
Kjell
/* This is an automatically generated universal stub for
architecture-dependent headers. */
#ifdef __i386__
#include "i386/Rconfig.h"
#elif defined __ppc__
#include "ppc/Rconfig.h"
#elif defined __ppc64__
#include "ppc64/Rconfig.h"
#elif defined __x86_64__
#include "x86_64/Rconfig.h"
#elif defined __arm__
#include "arm/Rconfig.h"
#else
#error "Unsupported architecture."
#endif
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Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
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