[Rd] R 1.8.1 ./configure with "," in working directory (PR#5536)

[wolfram at fischer-zim.ch]

PROBLEM
``./configure'' creates empty Makefiles and the following error messages
if there is a ``,'' in the name of the working directory.

REMARK
As I have seen, ``,'' is used as separator for the sed statements in
config.status. Would it be possible to use instead a character which
cannot be used in a pathname, e.g. ``;''?

ERROR MESSAGES
...
checking for lpr... lpr
checking for paperconf... false
checking for recommended packages... yes
configure: creating ./config.status
config.status: creating Makeconf
sed: -e expression #1, char 295: Unknown option to `s'
config.status: creating Makefile
sed: -e expression #1, char 295: Unknown option to `s'
config.status: creating afm/Makefile
sed: -e expression #1, char 299: Unknown option to `s'
config.status: creating doc/Makefile
...


Wolfram