I'm trying to address ticket #2315 that says zdiff doesn't work. I confirmed this by creating two files with a one line difference and compressing them:
gzip file1 gzip file2 But 'zdiff file1.gz file2.gz' gives no output. Older versions of the script work properly. The code in the script is really convoluted. I found an error report in the gzip archives about this: http://lists.gnu.org/archive/html/bug-gzip/2008-02/msg00002.html I note that there was never a reply to the message and that was over a year ago. The problem code looks like: gzip_status=$( exec 4>&1 (gzip -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- | ( (gzip -cdfq -- "$2" 4>&-; echo $? >&4) 3>&- 5<&- </dev/null | eval "$cmp" /dev/fd/5 -) 5<&0 ) When I look at /dev/fd, I only have 0 through 3 (and on RH and Ubuntu other systems too, but none use gzip-1.3.12). The fix appears to be changing the last line above to eval "$cmp" /dev/fd/5 - >&3) 5<&0 ^^^^ added We can fix this with this with the following: sed -i 's/5 -)/5 >\&3)/' zdiff but I don't understand what is really going one here. Should I make this change? Comments? -- Bruce -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
