On Tue, 21 Aug 2007, Prof Brian Ripley wrote: > Yes, > >> What is the advantage of building this? > > was my question too. If you want a Unix-like version of R on PC hardware > running Windows why not run a Unix-like OS under a virtual machine? > > Quite a lot of the details are wrong: using FLIBS, BLAS_LIBS and LIBS as > intended will solve most of the problems. I would use --disable-nls > --disable-mbcs as you don't need them (and in particular you don't benefit > from MBCS support on Windows unless you are in a CJK locale). > > Note that 2.5.1 is released and there is unlikely to be a 2.5.2, so any > changes would be made only to R-devel. It there is a convincing case to > tailor a build for Cygwin there we can probably do so rather easily, but > the need for ongoing support would be a worry.
It was very easy: R-devel now builds out of the box on Cygwin. I didn't have to do most of the things mentioned here: almost all the pieces needed were already available inside configure and just needed to be switched on. The exercise was useful in that it found a couple of long-standing minor errors in the build process. The resulting executable hung on the fifo() test (seemingly an oft-reported Cygwin issue), but otherwise passed 'make check'. I still don't see why one would prefer this to Rterm.exe. > (I f platforms are not used and in particular not tested in the alpha/beta > testing phases then the ability to build on them crumbles away. We seems > to be down to regular testers on Linux, Windows, MacOS X, Solaris and > FreeBSD, with some help on AIX after a patch with none.) > > On Tue, 21 Aug 2007, Duncan Murdoch wrote: > >> Denham Robert wrote: >>> For various reasons, > > I think it is only courteous to mention some good reasons if you want to > take up people's time. > >>> it suits our workplace to have a cygwin version of >>> R. I am pretty sure that cygwin is still not a supported environment >>> for R, but we have managed to compile R-2.5.1 under cygwin without too >>> many dramas. Our procedure is described below. We still have a few >>> problems compiling libraries without manually changing files from .so to >>> .dll, but it seems ok. >>> >> I would expect other subtle problems as well, because Cygwin is not a >> normal Unix. I don't know whether any of these differences matter to R, >> but some things to look out for are: >> >> - you can't unlink a file while it is open >> - filenames are not case sensitive >> - file permissions have strange defaults (everything is executable) >> - I think the executable format still needs to be Windows format >> - There's no such thing as a ptty >> - You'll probably need X11 for graphics, and will lose support for >> Windows metafile output (wmf) >>> >>> I was wondering whether this information is likely to be useful to >>> others, and if we should spend any time looking in to ways in which the >>> configure/build/install code could be modified to allow a standard >>> install. >>> >> What is the advantage of building this? I don't think we want to >> support platforms just for the sake of supporting more platforms, but if >> there's a real need for it, that would be different. >> >> Duncan Murdoch >>> >>> Notes on building R under cygwin: >>> >>> export FFLAGS=-O3 >>> export CFLAGS=-O3 >>> export CXXFLAGS=-O3 >>> export OBJCFLAGS=-O3 >>> export FCFLAGS=-O3 >>> export LDFLAGS='-lblas -lg2c -lintl' >>> >>> export R_OSTYPE=unix >>> >>> ./configure --prefix=/opt/freeware/R/R-2.5.1 \ >>> --with-tcl-config=/usr/lib/tclConfig.sh \ >>> --with-tk-config=/usr/lib/tkConfig.sh \ >>> --with-blas=-lblas \ >>> --with-lapack=-llapack \ >>> --enable-R-shlib >>> >>> comment out Win32 in src/include/config.h and set Unix to 1, change .so >>> to .dll. change .so to .dll and in Makeconf. >>> in src/extra/xdr/rpc/types.h comment out defn of malloc. >>> >>> Change .so to .dll in Makefile's >>> >>> edit Makeconf and set R_OSTYPE to unix >>> >>> make -j2 >>> >>> when blas doesn't link, re-run command with -lblas -lg2c on end and >>> change output to .dll >>> >>> edit Rstrptime.c and change wcstod to atof. >>> >>> in modules: >>> when X11 and internet falls over add -lintl to link line. add -lg2c and >>> -lblas to lapack >>> >>> comment out library/base/R/library.R lines 47-51 to avoid arch check >>> which seems to go wrong! >>> >>> make -j2 >>> make install >>> >>> edit /opt/freeware/R/R-2.5.1/lib/R/etc/Makeconf and add '-lintl -lg2c >>> -lblas' to the end of ALL_LIBS >>> so the module building works. Change .so to .dll also >>> (can't see how to to this for the build tho...) >>> >>> >>> Our cygwin info is: >>> sysname release version >>> "CYGWIN_NT-5.1" "1.5.20s(0.155/4/2)" "20060527 19:21:22" >>> >>> >>> >>> >>> Robert Denham >>> Environmental Statistician >>> Remote Sensing Centre >>> Telephone 07 3896 9899 >>> www.nrw.qld.gov.au <http://www.nrw.qld.gov.au/> >>> >>> Department of Natural Resources & Water >>> QScape Building, 80 Meiers Road, Indooroopilly Qld 4068 >>> >>> ************************************************************************ >>> The information in this email together with any attachments is >>> intended only for the person or entity to which it is addressed >>> and may contain confidential and/or privileged material. >>> Any form of review, disclosure, modification, distribution >>> and/or publication of this email message is prohibited, unless >>> as a necessary part of Departmental business. >>> If you have received this message in error, you are asked to >>> inform the sender as quickly as possible and delete this message >>> and any copies of this message from your computer and/or your >>> computer system network. >>> >>> ______________________________________________ >>> R-devel@r-project.org mailing list >>> https://stat.ethz.ch/mailman/listinfo/r-devel >>> >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel >> > > -- Brian D. Ripley, [EMAIL PROTECTED] 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 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
