openvrml-develop

[openvrml-develop] stripping libopenvrml.a

[Stefan R. <ste...@gm...>]

Hello,

as it was already mentioned serevral times here I am using strip to
reduce the size of the static library. When I call

strip libopenvrml.a

i get I library with the reduced size of about 20MB. This is still very
huge, but besides of this I get a lot uf undefined references trying
to link to that stripped library. So could someone explain to me in
detail how to strip the library correctly? I only need some basic
file output of vertex and index lists, normals, vertex colors and
texture coordinates, but I was not able to figure out how to do that.
Sorry if this is a noob question.

-- 
TIA,
 Stefan                          

Re: [openvrml-develop] stripping libopenvrml.a

[Braden M. <br...@en...>]

On Sat, 2006-11-18 at 19:38 +0100, Stefan Rilling wrote:
> Hello,
> 
> as it was already mentioned serevral times here I am using strip to
> reduce the size of the static library. When I call
> 
> strip libopenvrml.a
> 
> i get I library with the reduced size of about 20MB. This is still very
> huge,

20 MB is in the ballpark of expected sizes.

>  but besides of this I get a lot uf undefined references trying
> to link to that stripped library. So could someone explain to me in
> detail how to strip the library correctly? I only need some basic
> file output of vertex and index lists, normals, vertex colors and
> texture coordinates, but I was not able to figure out how to do that.
> Sorry if this is a noob question.

Stripping a static library is a little unusual; and you might have to
play with some of the options to strip to see what works. Read "man
strip". You definitely don't want to strip *everything*; I'd start with
--strip-unneeded.

-- 
Braden McDaniel                           e-mail: <br...@en...>
<http://endoframe.com>                    Jabber: <br...@ja...>

Re: [openvrml-develop] stripping libopenvrml.a

[Stefan R. <ste...@gm...>]

Hello,

BM> Stripping a static library is a little unusual; and you might have to
BM> play with some of the options to strip to see what works. Read "man
BM> strip". You definitely don't want to strip *everything*; I'd start with
BM> --strip-unneeded.
I forgot to mention that I already tried all the options strip offers.
both --strip-unneeded and --discard-all give me the error:
BFD: BFD 2.15.91 20040904 internal error, aborting at ../../src/bfd/coffcode.h l
ine 852 in handle_COMDAT

BFD: Please report this bug.

--discard-locals and --strip-debug do not reduce the size nameable.
The problem with the size of libopenvrml.a I have is that the linking
process for my app takes about 10 minutes, and as I'm quite new to
openVRML, I have to recompile very often to try different things. So
do I have any other chances to speed up linking instead of striping
the library?

-- 
 Stefan                          

Re: [openvrml-develop] stripping libopenvrml.a

[Braden M. <br...@en...>]

On Sun, 2006-11-19 at 00:00 +0100, Stefan Rilling wrote:
> Hello,
> 
> BM> Stripping a static library is a little unusual; and you might have to
> BM> play with some of the options to strip to see what works. Read "man
> BM> strip". You definitely don't want to strip *everything*; I'd start with
> BM> --strip-unneeded.
> I forgot to mention that I already tried all the options strip offers.
> both --strip-unneeded and --discard-all give me the error:
> BFD: BFD 2.15.91 20040904 internal error, aborting at ../../src/bfd/coffcode.h l
> ine 852 in handle_COMDAT
> 
> BFD: Please report this bug.

Bummer. Oh, well. It's Cygwin.

> --discard-locals and --strip-debug do not reduce the size nameable.
> The problem with the size of libopenvrml.a I have is that the linking
> process for my app takes about 10 minutes, and as I'm quite new to
> openVRML, I have to recompile very often to try different things. So
> do I have any other chances to speed up linking instead of striping
> the library?

You could not use Cygwin/gcc. gcc doesn't handle lots of large symbols
particularly well on any platform--though this is improving. (The Red
Hat variant of gcc 4.1.1 that ships with Fedora Core 6 includes
improvements that make compiling/linking OpenVRML *fly* relative to
previous releases.) In general, if something is slow, doing it on Cygwin
will make it even slower.

Can you use the Microsoft compiler?

-- 
Braden McDaniel                           e-mail: <br...@en...>
<http://endoframe.com>                    Jabber: <br...@ja...>

Re: [openvrml-develop] stripping libopenvrml.a

[Reed H. <re...@in...>]

Braden McDaniel wrote:

> You could not use Cygwin/gcc. gcc doesn't handle lots of large symbols

> Can you use the Microsoft compiler?

I usually prefer MinGW (with MSYS), though I've never tried Openvrml
with it.

Reed

Re: [openvrml-develop] stripping libopenvrml.a

[Reed H. <re...@in...>]

Reed Hedges wrote:
> Braden McDaniel wrote:
> 
>> You could not use Cygwin/gcc. gcc doesn't handle lots of large symbols
> 
>> Can you use the Microsoft compiler?
> 
> I usually prefer MinGW (with MSYS), though I've never tried Openvrml
> with it.

It may have similar problems, since the gcc port is similar (though the
libraries are not)

Reed

Re: [openvrml-develop] stripping libopenvrml.a

[Stefan R. <ste...@gm...>]

Hello,

Sunday, November 19, 2006, 7:43:12 PM, you wrote:

RH> Reed Hedges wrote:
>> Braden McDaniel wrote:
>> 
>>> You could not use Cygwin/gcc. gcc doesn't handle lots of large symbols
>> 
>>> Can you use the Microsoft compiler?
>> 
>> I usually prefer MinGW (with MSYS), though I've never tried Openvrml
>> with it.

RH> It may have similar problems, since the gcc port is similar (though the
RH> libraries are not)

I compiled openVRML with both Cygwin and MinGW and tried to strip it,
with similar failures. I also think I would have to make some major changes
to the Makefile to compile it with the Visual C++ compiler, and as I
am usually developing with MinGW, I would prefer to avoid this
opportunity. So are there any other options for me to make the library
smaller or do I have to get used to this?

-- 
Thanks for the answers,
 Stefan                          

Re: [openvrml-develop] stripping libopenvrml.a

[Braden M. <br...@en...>]

On Mon, 2006-11-20 at 00:46 +0100, Stefan Rilling wrote:

> I compiled openVRML with both Cygwin and MinGW and tried to strip it,
> with similar failures. I also think I would have to make some major changes
> to the Makefile to compile it with the Visual C++ compiler, and as I
> am usually developing with MinGW, I would prefer to avoid this
> opportunity.

The OpenVRML distribution includes project files for Visual C++ 2005.

-- 
Braden McDaniel                           e-mail: <br...@en...>
<http://endoframe.com>                    Jabber: <br...@ja...>