[R] png and jpeg libs for Solaris: Summary

[Don MacQueen]

At 9:22 AM +0000 11/3/01, Prof Brian D Ripley wrote:
>It is usual (and required by copyright law) to attribute quotes to their
>authors, and to send a reply to the author and not just the list!

Users of Eudora should be aware that when one uses the "reply to all" 
command, Eudora inserts a reference to the original author at the top 
of the quoted section, but when one uses "reply to sender" it does 
not. I made the wrong choice--inadvertently omitting the reference 
from the top of the quoted section. I apologize, and will be more 
careful.

The additional information is much appreciated.

>A few empirical facts from Solaris 2.7.
>
>1) Libpng 1.2.0 is later than R 1.3.1, so R 1.3.1 had not been tested
>with it.

I have since tried libpng 1.0.12 (also the binary from 
sunfreeware.com); it didn't work either. I didn't find a 1.0.11 
binary. At this point, even if I found a 1.0.11 binary, I doubt it 
would work.

>2) There is no Solaris binary in the official libpng distribution.

The libpng website does, however, have a link to the Solaris binaries 
at www.sunfreeware.com

>
>3) The official Solaris makefile does build a shared library.
>
>4) When libpng is built using that makefile, R's configure works correctly,
>finds png support and compiles without any warnings (except those related
>to X11 header files without declared types).  It works too!
>

I never had any doubt it would work, of course. Looks like I have to 
give up on using somebody else's binaries.

>So I took a closer look.  deflateInit2_ is in my libz.  So the issue
>appears to be that your libpng is not matching your libz.  Perhaps your
>libz is too old for your version of libpng?  If so, I think R's configure
>did the right thing.

I agree.

>BDR
>
>On Fri, 2 Nov 2001, Don MacQueen wrote, quoting me without attribution:

The signature section of your message was included in the quote.  But 
I agree that proper attribution should include the reference at the 
top, and will make sure to do so in the future.

>  > Thank you; this is helpful.
>>
>>  >On Thu, 1 Nov 2001, Don MacQueen wrote:
>>  >
>>  >>  I'm also having trouble installing R 1.3.1 on Solaris and getting png
>>  >>  and jpeg support.
>>  >>  It looks like perhaps the png and jpeg libraries I installed weren't
>>  >>  built with all the support R needs.
>>  >>  If that's the case I'd appreciate confirmation. Or perhaps there's
>>  >>  something else I can do?
>>  >>  (with all the details I've included this message is rather long)
>>  >
>>  >For png, the symbol missing is not one the configure test is looking for,
>>  >so it seems your png library is incomplete.  I'd rebuild it.  It's also
>>  >strange since on Solaris it would be normal to have a shared library.
>>
>>  The version I used is libpng-1.2.0-sol7-sparc-local
>>  The libraries I used were the ones installed by that package
>>  (pre-compiled, however; looks like I will have to try building them
>>  myself). Or perhaps I should try to get v 1.0.11.
>>
>>  >For jpeg, I think you are seeing a consequence of the incomplete libpng.a,
>>  >which you can't link *anything* against.  To stress this: it is not that
>>  >it is missing things R needs but that it is missing things it needs
>>  >itself.
>>  >
>>  >
>>  >--
>>  >Brian D. Ripley,                  ripley at stats.ox.ac.uk
>>  >Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
>>  >University of Oxford,             Tel:  +44 1865 272861 (self)
>>  >1 South Parks Road,                     +44 1865 272860 (secr)
>>  >Oxford OX1 3TG, UK                Fax:  +44 1865 272595
>>
>>
>>  --
>>  --------------------------------------
>>  Don MacQueen
>>  Environmental Protection Department
>>  Lawrence Livermore National Laboratory
>>  Livermore, CA, USA
>>  --------------------------------------
>> 
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>  > 
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>>
>
>--
>Brian D. Ripley,                  ripley at stats.ox.ac.uk
>Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
>University of Oxford,             Tel:  +44 1865 272861 (self)
>1 South Parks Road,                     +44 1865 272860 (secr)
>Oxford OX1 3TG, UK                Fax:  +44 1865 272595
>
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-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
--------------------------------------
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