Trying to upgrade to SAGE 2.11 on a Dell with an
i686 Intel Pentium D chip and a CPU running at 2.80 GH under Gentoo 
Linux,  I (as root) did "sage -upgrade".  Near the end of the process, a 
message appeared saying that the clisp executable was not installed. The 
message also stated the the following:
"If you already have clisp, you can type touch spkg/installed/clisp-2.38
(or whatever the current version is) from SAGE_ROOT, and continue the
install." I tried doing "touch spkg/installed/clisp-2.41" and repeating 
"sage -upgrade" but the problem persisted.  The message that appeared on 
this second attempt, similar or identical to the first message, reads in 
part as follows:
"/usr/bin/install: cannot stat `clisp.pdf': No such file or directory
make[1]: *** [install-man] Error 1
make[1]: Leaving directory 
"/usr/local/sage-2.8.2-debian32-i686-Linux/spkg/build/clisp-2.41.p13/src/src'
Something went wrong -- the clisp executable was not installed.
If you already have clisp, you can type touch spkg/installed/clisp-2.38
(or whatever the current version is) from SAGE_ROOT, and continue the
install.  This tells SAGE that you already have clisp-2.38 installed.
Clisp is only used by the Maxima component of SAGE.
real    3m56.837s
user    3m25.190s
sys     0m30.153s
sage: An error occurred while installing clisp-2.41.p13"

Near the end of my lengthy 
/usr/local/sage-2.8.2-debian32-i686-Linux/install.log
the following, possibly relevant, lines appear:
"Setting RHOMES to  ['/usr/lib/R']
Traceback (most recent call last):
   File "setup.py", line 106, in <module>
     RVERSION = rpy_tools.get_R_VERSION(RHOME, force_exec=True)
   File 
"/usr/local/sage-2.8.2-debian32-i686-Linux/spkg/build/rpy-1.0.1.p1/src/rpy_tools.py",
 
line 99, in get_R_VERSION
     " `%s'.\n" % rexec )
RuntimeError: Couldn't execute the R interpreter `/usr/lib/R/bin/R'.
Error building RPY -- Python interface to R.
real    0m0.221s
user    0m0.066s
sys     0m0.018s
sage: An error occurred while installing rpy-1.0.1.p1"

The file /usr/lib/R/bin/R exists.  When I type "R", R starts.  I don't 
why the system "couldn't execute the R interpreter."

Any help in resolving this problem would be greatly appreciated.

Best regards,
John

-- 
John P. Burkett
Department of Environmental and Natural Resource Economics
and Department of Economics
University of Rhode Island
Kingston, RI 02881-0808
USA

phone (401) 874-9195

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