Calling all sed wizards! Need a little help with possible fix: Subtle permissions bug in interaction between Makefiles & libtool (Cygwin-specific)

Sat Sep 7 10:54:00 GMT 2002

Igor Pechtchanski wrote:
>>> On Thu, 5 Sep 2002, Max Bowsher wrote:
>>>>>>> I had an idea:
>>>> sedpat6='s,\(-m [0-7]*\)6,17,円g'
>>>> sedpat4='s,\(-m [0-7]*\)4,15,円g'
>>>> sed -e "$sedpat4" -e "$sedpat4" -e "$sedpat4" -e "$sedpat6" -e
>>>> "$sedpat6" -e "$sedpat6"
>>>>>>>> but can anyone show me a way without repeating each pattern 3
>>>> times?

> Okay, then... There is a pure sed solution that doesn't use
> repetition. It's peculiar, and involves a loop. In this particular
> case, you are probably better off just repeating the patterns 3
> times. But I'm posting it just to show that it can be done. Call me
> vain. :-D
>> Okay, here goes:
>> sed 's/$/0^A1^A2^B3^C4^E5^E6^G7^G/;:a;s/\(-m
>[0-7^A-^G]*\)\([0-7]\)\(.*2円\)\(.\)/1円4円3円4円/;ta;s/.\{16\}$//;y/^A^B^C^E^G/12357
/'
Thankyou :-) You clearly qualify as a sed wizard, 1st class!
However, in analysing your solution, I learnt something new about sed - namely,
the t command.
So, I can use the simpler script:
':a;s/\(-m [0-7]*\)6/17円/;s/\(-m [0-7]*\)4/15円/;ta'
Now, to build that into libtool...
Thanks for the help!
Max.
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