Re: [Plplot-devel] Linking problem with 64-bit Ada compiler on OS X 10.5.8 Leopard

[Jerry <lan...@qw...>]

On Apr 14, 2010, at 12:11 PM, Jerry wrote:

> Yes, thanks Werner. I re-downloaded the binary yesterday (before I
> posted to the list) just in case I had accidentally downloaded the
> wrong thing earlier or there had been an update, but there was no
> change in my build results. From the page you linked, I downloaded
>
> http://get.qt.nokia.com/qt/source/qt-mac-cocoa-opensource-4.6.2.dmg
>
> On the page, the line of text right above that says
>
> "Mac binary package using Cocoa for Mac OS X 10.5 - 10.6 (32-bit and
> 64-bit)"
>
> So, I still don't know how to proceed. Is there a tool (otool?) that
> will tell me the target architecture of these libraries?
>
> I'm not even sure it's a Qt thing because the link warnings (cut from
> my original post) look like this:
>
> ld: warning in ../src/libplplotd.9.7.0.dylib, file is not of required
> architecture
> ld: warning in ../lib/csa/libcsirocsa.0.0.1.dylib, file is not of
> required architecture
> ld: warning in ../lib/qsastime/libqsastime.0.0.1.dylib, file is not of
> required architecture
>
> and the undefined symbols are all plplot things.
>
> Jerry
>
>
>
> On Apr 14, 2010, at 1:45 AM, Werner Smekal wrote:
>
>> Hi Jerry,
>>
>>> I've changed the paths in my build script (below) to accommodate the
>>> new compiler. cmake sees it. The build goes OK until it hits a
>>> linking
>>> problem. Here is the problem encountered when linking to a qt
>>> library.
>>> FWIW, my Qt installation is the OS binary from http://qt.nokia.com/downloads/mac-os-cpp/
>>> .
>>
>> I'm not 100% sure, but if you have the Carbon version of qt, this
>> might
>> not work with a 64bit compiler (since Carbon is 32bit). You need the
>> Cocoa version of Qt which can be used with 64 bit compilers (as well
>> with 32 bit). This can be downloaded on the same page
>> http://qt.nokia.com/downloads/mac-os-cpp/  but you need to select the
>> cocoa version below.
>>
>> HTH,
>> Werner
>>
>> --  
>> Dr. Werner Smekal
>> Institut fuer Angewandte Physik
>> Technische Universitaet Wien
>> Wiedner Hauptstr 8-10/134
>> A-1040 Wien
>> Austria
>> DVR-Nr: 0005886
>>
>> email: sm...@ia...  (GPG: EDCAF4A79)
>> web:   http://www.iap.tuwien.ac.at/~smekal
>> phone: +43-(0)1-58801-13463 (office)
>>      +43-(0)1-58801-13469 (laboratory)
>> fax:   +43-(0)1-58801-13499
>>
I have reverted to a 32-bit Ada compiler from sourceforge for OS X  
Leopard. (This is different than the 32-bit compiler from MacAda.org  
which I have been using without problems on PLplot but which has the  
small bug which I mentioned in my original post.) The ld problem is  
gone and the build completes but testing of the Ada examples fails --  
I'll make a separate post for that problem.

So the question remains--why does the build process fail with a 64-bit  
Ada compiler?

Jerry





  with

dyld: Library not loaded: @rpath/libgnat-2009.dylib
   Referenced from: /usr/local/plplot_build_dir/examples/ada/x01a
   Reason: image not found

I get the same missing library complaint when I try to run the Ada  
examples myself unless I first run

export DYLD_LIBRARY_PATH=/usr/local/ada-4.3/lib/gcc/i386-apple- 
darwin9.7.0/4.3.4/adalib:/usr/local/plplot/lib/

which is normal (I've always done that extra -- or similar-- step to  
run the Ada examples). However, adding this to my build script has no  
effect. Neither does adding this:

GNAT_LIB=/usr/local/ada-4.3/lib/gcc/i386-apple-darwin9.7.0/4.3.4/adalib/
export GNAT_LIB

The strange thing is, the directory containing libgnat-2009.dylib has  
a symlink named libgnat.dylib which points to it and is found when  
each of the examples is linked.