[bug-grep] fgrep in version 2.5* fails.

[moenia]

Hi!

if found a possible bug within fgrep (or grep -F), version 2.5 and 
2.5.1a.
as attachment a gzipped text-file. if I do an "fgrep -w -e dd" on 
it, then it produces no output.
a fgrep 2.4 gives the same lines as a simple grep with the same args.

following tests are done. a failure means, that a simple grep or an 
old fgrep gives output, the 2.5* don't.

fail:
cat grep-error-file | ./grep -F  -w -e dd
tail -n +12 grep-error-file | ./grep -F  -w -e dd
{ head -n 17 grep-error-file; tail -n +18 grep-error-file; }  | 
./grep -F  -w -e dd

succeed:
tail -n +13 grep-error-file | ./grep -F  -w -e dd
{ head -n 17 grep-error-file; tail -n +19 grep-error-file; }  | 
./grep -F  -w -e dd

unfortunately I've actually not enough time to analyse the 
grep-code, so please excuse the report-only of this problem.

greetings

jürgen baumann

grep-error-file.gz
Description: GNU Zip compressed data