GCC being built without optimisation

[Michael Hope]

On 14 November 2012 22:40, Johannes Stezenbach <js@sig21.net> wrote:
> On Wed, Nov 14, 2012 at 02:06:18PM +1300, Michael Hope wrote:
>> On 14 November 2012 13:30, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
>> > On Wednesday 14 November 2012 Michael Hope wrote:
>> >> It turns out that GCC and the libraries are being built without
>> >> optimisation.
> ...
>> --- a/scripts/crosstool-NG.sh.in      Fri Nov 09 18:22:31 2012 +0100
>> +++ b/scripts/crosstool-NG.sh.in      Wed Nov 14 13:48:18 2012 +1300
>> @@ -494,7 +494,9 @@
>>      fi
>>
>>      # Help gcc
>> -    CT_CFLAGS_FOR_HOST=
>> +    # Explicitly optimise, else the lines below will overide the
>> +    # package's default optimisation flags
>> +    CT_CFLAGS_FOR_HOST="-O2 -g"
>>      [ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST+=" -pipe"
>>      CT_CFLAGS_FOR_HOST+=" ${CT_EXTRA_FLAGS_FOR_HOST}"
>
> FWIW, I brought this issue up in February:
> http://sourceware.org/ml/crossgcc/2012-02/msg00089.html
>
> I should've sent a patch but it was so easy to just
> use CT_EXTRA_FLAGS_FOR_HOST...

Looking at the original discussion, a nice thing about putting these
options first is EXTRA_FLAGS appear later in the command line and can
override these defaults.  So if you want to build at -Os you can.  I
can't find the 'disable debug' option though - I thought there was a
'-no-flag-name' such as '-no-g' addeded in recent GCCs.

-- Michael

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