Cygwin and Rtools (Was: RE: [Rd] cygwin tar?)

If it helps anyone, below is the startup script I use in WinXP to get
an MSDOS prompt that give me access to R and Ripley's Rtools so that I
can run RCMD build etc without problems and at the same time keep my
Cygwin installation. This is pretty much what Ripley suggest. Note the
"NOTE: ..." below!

I'm sorry if mine or your email client cuts the lines. 

Henrik Bengtsson

-------------------------------------------------------------
Begin: RCMDprompt.bat
-------------------------------------------------------------
@echo off
rem
######################################################################
rem # Usage: RCMDprompt.bat [path]
rem #
rem # This script opens a MS-DOS prompt with a enviroment variables
rem # set such that R can be ran and packages can be build. 
rem # If 'path' is given, the working directory will be set
accordingly.
rem # 
rem # NOTE: This scripts works even if Cygwin is installed. HOWEVER,
you
rem # can not have any Cygwin applications running (not even a shell
or
rem # XEmacs for Cygwin) at the same time you try to run RCMD.
rem #
rem # Requires:
rem # To build and install packages two things must be installed, i.e.
rem # exists in the PATH. First, the Rtools compilation [1] by B.
Ripley 
rem # must exists. The path (R_TOOLS) to it is set below. Second, Perl

rem # (must not be Cygwin/Perl) must also exists. The path to it is
set
rem # below.
rem #
rem # Reference:
rem #  [1] http://www.stats.ox.ac.uk/pub/Rtools/
rem #
rem # Henrik Bengtsson, hb@maths.lth.se, March 2004.
rem
######################################################################

rem # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - 
rem # 1. "Global" environment variables
rem # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - 
rem # Short version of PROGRAMFILES, e.g. 'C:\Progra~1' instead of
rem # 'C:\Program Files\', which contains spaces that are BAD for R &
Co.
set PROGRAMFILES_SHORT=C:\Progra~1

rem # Directory where user directories are
set USERSDIR=C:\users

rem # Set the main R directory
set R_ROOT=%PROGRAMFILES_SHORT%\R

rem # Set the R_HOME directory
set R_HOME=%R_ROOT%\rw1081
rem set R_HOME=%R_ROOT%\rw1090alpha

rem # Set the HOME directory. This is the directory where R looks 
rem # for the .Rprofile and .Renviron files. See ?Startup.
set HOME=%USERSDIR%\%USERNAME%\

rem # Set TMPDIR to a temporary directory
set TMPDIR=%TEMP%


rem # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - 
rem # 2. Setup the PATH
rem # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - 
rem # Clear the PATH (making the main Cygwin installation "invisible")
path ;

rem # Set the LaTeX directory
rem # http://www.miktex.org/
path %PROGRAMFILES%\MikTeX\miktex\bin;%PATH%

rem # Set the Microsoft HTML Help Compiler directory
rem #
http://msdn.microsoft.com/library/tools/htmlhelp/chm/HH1Start.htm
path %PROGRAMFILES%\HTML Help Workshop;%PATH%

rem # Set the Perl directory
rem # http://www.activestate.com/Products/ActivePerl/Download.html
path C:\Perl\bin;%PATH%
 
rem # Set the Rtools [1] directory
rem # http://www.stats.ox.ac.uk/pub/Rtools/
path %R_ROOT%\Rtools;%PATH%

rem # Set the R_HOME directory
path %R_HOME%\bin;%PATH%


rem # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - 
rem # 3. Start the MSDOS prompt in the given directory
rem # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - 
rem # Change directory according to argument 1
cd %1%

rem # Start the MSDOS commando prompt
%SystemRoot%\system32\cmd.exe

-------------------------------------------------------------
End: RCMDprompt.bat
-------------------------------------------------------------

-----Original Message-----
From: r-devel-bounces@stat.math.ethz.ch 
[mailto:r-devel-bounces@stat.math.ethz.ch] On Behalf Of Prof 
Brian Ripley
Sent: den 17 mars 2004 13:40
To: Martyn Plummer
Cc: Tony Plate; Jeff D. Hamann; r-devel@stat.math.ethz.ch
Subject: Re: [Rd] cygwin tar?


On Wed, 17 Mar 2004, Martyn Plummer wrote:

I had the same problem as Tony with multiple copies of

cygwin1.dll.

But doesn't this solution (renaming cygwin1.dll in the tools 
directory) just link the tools with the cygwin1.dll that comes

with

cygwin? In which case will it work if the tools are linked 

against a 

different version of the cygwin1 library?

It may or it may not.  At least some cygwin1.dll's are broken 
and cause 
tar to malfunction.

I don't uninstall cygwin, but I do ensure that its path is 
not mounted, 
since if it thinks there is a /bin/cygwin1.dll or 
/usr/bin/cygwin1.dll it 
complains, even if that is really 
C:/packages/usr/bin/cygwin1.dll and not 
in your path.

To answer Jeff's question

 if($WINDOWS) {
     ## workaround for paths in Cygwin tar
     $filepath =~ s+^([A-Za-x]):+/cygdrive/\1+;
 }

in the build script and don't think it needs to be there 

since you 

can use the tar utility that comes with mingw, yes?

You're talking about the tar that comes with MSYS. And no you

can't

use it because it can't handle symbolic links, a problem that is 
discussed in the documentation.

That's not the only problem I have met with MSYS's tar, if 
that is what 
was meant.  It often had problems for me in the middle of 
.tar.gz archives 
that other systems are happy with.

I do know how to solve this, but I am not going to put the 
effort in to do 
so.  So the situation will remain

	`follow the instructions or don't ask for help'.

-- 
Brian D. Ripley,                  ripley@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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