Thomas Koutcher <[EMAIL PROTECTED]> writes:
> On Tru64 4.0F zdiff is using ksh Version M-11/16/88f. ksh has some support for
> the syntax /dev/fd/n and thus the command "test -r /dev/fd/3 3</dev/null"
> returns 0 but this syntax does not work for external commands
Thanks for reporting that. Can you please try the following patch
instead? It should be one fewer system call. I installed it, as it
shouldn't hurt, but if possible I'd like you to verify that it
actually works on your host. Thanks.
2007-01-03 Paul Eggert <[EMAIL PROTECTED]>
* zdiff.in: Test /dev//fd/3, not /dev/fd/3, to work around a problem
with Tru64 4.0F ksh M-11/16/88f reported by Thomas Koutcher in
<http://lists.gnu.org/archive/html/bug-gzip/2007-01/msg00000.html>.
--- zdiff.in 24 Dec 2006 04:14:57 -0000 1.6
+++ zdiff.in 4 Jan 2007 05:23:48 -0000
@@ -65,7 +65,9 @@ elif test $# -eq 2; then
*[-.]gz* | *[-.][zZ] | *.t[ga]z | -)
if test "$1$2" = --; then
gzip -cdfq - | eval "$cmp" - -
- elif test -r /dev/fd/3 3</dev/null; then
+ # The extra slash in /dev//fd works around a problem with
+ # Tru64 4.0F ksh M-11/16/88f.
+ elif test -r /dev//fd/3 3</dev/null; then
gzip -cdfq -- "$1" |
(gzip -cdfq -- "$2" |
eval "$cmp" /dev/fd/3 -) 3<&0
