On Sat, Jul 15, 2006 at 05:51:22PM -0400, Joe Ciccone wrote:
> Alex Merry wrote:
> > Robert was suggesting a change that would allow the sed to be applied to
> > other *FLAGS variables. When you consider the dangers in constructing and
> > running commands you don't fully understand in the compilat
Alex Merry wrote:
>
> But surely the only way anyone would have anything on that line is if
> they'd already been doing something different to the book, in which case
> (especially with the toolchain) they should be acutely aware of what the
> instructions do and the possible implications of any ch
On Sat, Jul 15, 2006 at 05:13:53PM -0400, Joe Ciccone wrote:
> Bruce Dubbs wrote:
> > Robert Connolly wrote:
> >
> >> This isn't a bug, but the line:
> >>
> >> sed 's/^XCFLAGS =$/& -fomit-frame-pointer/'
> >>
> >> can be problematic if a user uses this command to modify other variables,
> >> be
Bruce Dubbs wrote:
> Robert Connolly wrote:
>
>> This isn't a bug, but the line:
>>
>> sed 's/^XCFLAGS =$/& -fomit-frame-pointer/'
>>
>> can be problematic if a user uses this command to modify other variables,
>> because the -fomit-frame-pointer is appended to the end of the line. Some of
>>
Alex Merry wrote these words on 07/15/06 12:59 CST:
> It will not for example, match
> XCFLAGS = -g -O2
> The reason is obvious: there is no end-of-line after the =, which is
> what $ matches.
Exactly what I've been trying to get across to Robert, but every time
I've provided an example 'sed' to
On Sat, Jul 15, 2006 at 12:40:54PM -0400, Robert Connolly wrote:
> On July 15, 2006 12:26 pm, Randy McMurchy wrote:
> > Robert Connolly wrote these words on 07/15/06 11:13 CST:
> > [EMAIL PROTECTED]: ~/build > sed 's/^XCFLAGS =$/& -fomit-frame-pointer/' tf
> > stuff
> > XCFLAGS = -g -O2
> > more st
On July 15, 2006 12:26 pm, Randy McMurchy wrote:
> Robert Connolly wrote these words on 07/15/06 11:13 CST:
> > Both '^XCFLAGS =$' and '^XCFLAGS =' match this.
>
> Okay then, explain this:
>
> [EMAIL PROTECTED]: ~/build > cat tf
> stuff
> XCFLAGS = -g -O2
> more stuff
>
> [EMAIL PROTECTED]: ~/build
Robert Connolly wrote these words on 07/15/06 11:13 CST:
> Both '^XCFLAGS =$' and '^XCFLAGS =' match this.
Okay then, explain this:
[EMAIL PROTECTED]: ~/build > cat tf
stuff
XCFLAGS = -g -O2
more stuff
[EMAIL PROTECTED]: ~/build > sed 's/^XCFLAGS =$/& -fomit-frame-pointer/' tf
stuff
XCFLAGS = -
On July 15, 2006 10:29 am, Randy McMurchy wrote:
> Robert Connolly wrote these words on 07/15/06 09:14 CST:
> > XCFLAGS = -g -O2
> >
> > sed 's/^XCFLAGS =$/& -fomit-frame-pointer/' will change it into:
> >
> > XCFLAGS = -g -O2 -fomit-frame-pointer
>
> Not on my systems. That sed will not match the
Robert Connolly wrote these words on 07/15/06 09:14 CST:
> XCFLAGS = -g -O2
>
> sed 's/^XCFLAGS =$/& -fomit-frame-pointer/' will change it into:
>
> XCFLAGS = -g -O2 -fomit-frame-pointer
Not on my systems. That sed will not match the line!
'^XCFLAGS =$' does not equal 'XCFLAGS = -g -O2'
Those
On July 15, 2006 09:55 am, Randy McMurchy wrote:
> Bruce Dubbs wrote these words on 07/15/06 08:44 CST:
> > Robert Connolly wrote:
> >> sed 's/^XCFLAGS =$/& -fomit-frame-pointer/'
> >>
> >> sed 's/^XCFLAGS =/& -fomit-frame-pointer/'
> >
> > I'd be interested in other opinions.
> I fail to see what
Bruce Dubbs wrote these words on 07/15/06 08:44 CST:
> Robert Connolly wrote:
>>
>> sed 's/^XCFLAGS =$/& -fomit-frame-pointer/'
>>
>> sed 's/^XCFLAGS =/& -fomit-frame-pointer/'
>
> I'd be interested in other opinions.
I fail to see what Robert's sed does. To me, it either:
1) does exactly the sa
Robert Connolly wrote:
> This isn't a bug, but the line:
>
> sed 's/^XCFLAGS =$/& -fomit-frame-pointer/'
>
> can be problematic if a user uses this command to modify other variables,
> because the -fomit-frame-pointer is appended to the end of the line. Some of
> the *FLAGS in GCC end with a \
This isn't a bug, but the line:
sed 's/^XCFLAGS =$/& -fomit-frame-pointer/'
can be problematic if a user uses this command to modify other variables,
because the -fomit-frame-pointer is appended to the end of the line. Some of
the *FLAGS in GCC end with a \ character at the end of the first lin
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