[R] checking package dependencies

[Richard M. Heiberger]

Thank you for your comments.

After further investigation and off-line correspondence with Duncan
Murdoch, I found that the principal problem was a bad unzip from cygwin.
It was leaving the .exe files with permission 666 instead of the correct
777.  I changed unzip programs and everything now works inside the
cygwin *shell* buffer inside emacs.

There was a secondary problem that the environment variables inside
the emacs buffer running cygwin needed adjustment.  These three changes
are needed inside the bash running inside emacs to make the command
   Rcmd check packagename
work:

PATH=.:/cygdrive/c/progra~1/R/tools/bin:/cygdrive/c/MinGW/bin:/cygdrive/c/Perl/bin:/cygdrive/c/texm
f/miktex/bin:/cygdrive/c/progra~1/R/R-
2.3.0/bin:/cygdrive/c/progra~1/htmlhe~1:/usr/local/bin:/usr/bin:/cygdrive/c/gs/gs8.00/bin:/cygdrive
/c/gs/gs8.00/lib:/cygdrive/c/windows:/cygdrive/c/windows/system32

R_HOME=c:/progra~1/R/R-2.3.0

COMSPEC=c:\windows\system32\cmd.exe  ##this is necessary and in DOS notation



In order to make C-c C-p (equivalently, clicking preview) work on .Rd files,
I needed the following emacs statements

(setenv "PATH" ".;c:\\progra~1
\\R\\tools\\bin;c:\\MinGW\\bin;c:\\Perl\\bin;c:\\texmf\\miktex\\bin;c:\\progra~1\\R\\R-2.3.0
\\bin;c:\\progra~1\\htmlhe~1;c:\\gs\\gs8.00\\bin;c:\\gs\\gs8.00
\\lib;c:\\windows;c:\\windows\\system32")

(setenv "R_HOME" "c:\progra~1\R\R-2.3.0")

(setenv "COMSPEC" "c:\windows\system32\cmd.exe")



My mailer folds lines at about 100 characters.  Receiving mail programs
might fold them again.  Each of those PATH statements is a single line.
Please unfold them before using them.

Rich