Hello,
there is a discrepancy amongst compilers on how the default output streams behave in some situations. Consider the following test case:
(format *standard-output* "This goes to standard output.~%") (format *error-output* "This goes to error output.~%") (format *query-io* "This goes to query io.~%")
Now, launch you favorite Lisp on a terminal and load this file at startup in 3 different ways:
myfavoritelisp --the-load-option test.lisp myfavoritelisp --the-load-option test.lisp > log myfavoritelisp --the-load-option test.lisp > log 2>&1
SBCL and CMUCL behave in a way which I think is right: case #1: everything is printed on the terminal case #2: stdout goes in the file case #3: stdout and stderr go in the file (*query-io* stays on the tty)
ECL redirects the output of *query-io* in the file for cases #2 and #3. The behavior of stdout and stderr is the same as in SBCL and CMUCL.
Finally, LW, ACL, CLISP, CCL and ABCL redirect everything in the file in cases #2 and #3.
I'm ready to fill in bug reports for the last 6 compilers, but are these really bugs? I'm convinced that it is for stderr, but it may be arguable for *query-io*.
WDYT?