[ros-users] compile problem nodelet in OSX

[William Woodall]

Brian, on my machine (10.7) I don't have an archive file (.a) I have .dylib
and it gives this output.  This might be something that goes away with Lion.

∫ file /usr/lib/libstdc++.dylib
> /usr/lib/libstdc++.dylib: Mach-O universal binary with 2 architectures
> /usr/lib/libstdc++.dylib (for architecture x86_64): Mach-O 64-bit
> dynamically linked shared library x86_64
> /usr/lib/libstdc++.dylib (for architecture i386): Mach-O dynamically
> linked shared library i386


But even on 10.6 the built-in libstdc++ library should be _at least_ x86_64.
 I would expect it to be more likely for you library to be x86_64 only and
lack i386.  But all of the built-in libraries on OS X 10.6+ should be
universal (except notably carbon which is deprecated and lacks a x86_64
variant).

Have you replaced your system tool chain possibly with an i386 only version?
 If so, or unsure, try reinstalling Xcode?

Hope something in there will help,

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
William Woodall
Graduate Software Engineering
Auburn University
w at auburn.edu
wjwwood at gmail.com
williamjwoodall.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



On Fri, Sep 2, 2011 at 1:50 PM, Brian Gerkey <gerkey at willowgarage.com>wrote:

> On Fri, Sep 2, 2011 at 10:22 AM, Mark Moll <mmoll at rice.edu> wrote:
> > On Sep 2, 2011, at 12:07 PM, Brian Gerkey wrote:
> >> That's why I went for the source rosdep approach for tinyxml on OSX.
> >
> > I added a port for tinyxml to MacPorts a little while back that also uses
> the -DTIXML_USE_STL flag. Would that work?
>
> Yep, that should do it.  Did it replace the old one by the same name?
>
> Hmm, on my 10.6 machine, I just did a `sudo port selfupdate` followed
> by `sudo port install tinyxml` and got a mile of linker errors,
> preceded by this ominous line:
>
> ld: warning: ignoring file //usr/lib/libstdc++.a, missing required
> architecture x86_64 in file
>
> I guess my system is now in some sort of profound 32-vs-64-bit hell....
>
>        brian.
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