Re: [pcre-dev] coff file info and data

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Autor: Sheri
Datum:  
To: pcre-dev
Betreff: Re: [pcre-dev] coff file info and data
Philip Hazel wrote:
> On Tue, 1 May 2007, Craig Silverstein wrote:
>
>
>> What I've done in other projects is -g + strip. This ends up the same
>> size as just omitting the -g, but this way, if you get a core file and
>> need to look inside pcre, you can just recompile pcre with -g (and
>> without strip), and all the addresses will still be right.
>>
>
> There doesn't seem to be a standard way of altering the default compiler
> options that are set up by Autoconf. I have, therefore, done it "by
> steam" in the configure.ac file. (If CFLAGS is not set on the command
> line and it ends up as "-g -O2", reset it to just "-O2", or if it ends
> up -g, reset it empty, and likewise for CXXFLAGS.)
>
> This has a dramatic effect on the size of the compiled library. It also
> adds a very small bit of performance:
>
>              .a file     .so file     time to run RunTest

>
> Without -g:  163,374     153,056       1.06
> With    -g:  411,566     331,736       1.08

>
> Those figures are on Linux; no doubt there's a similar effect on
> Windows.
>
> Philip
>
>

Would be happy to try it on Windows, but think I would need a beta
release. Bob said autogen.sh doesn't work properly on mingw.

Regards,
Sheri