[R-SIG-Mac] dyld problem

[Simon Urbanek]

Robin,

you have actually found an interesting bug because of another bug ;).

The bug on the R side is that although libR pulls the right libgcc,  
but exec/*/R does not. To fix that run in Terminal (you'll need Xcode  
for this):

cd /Library/Frameworks/R.framework/Versions/2.6/Resources
install_name_tool -change /usr/local/lib/libgcc_s.1.dylib \
   `pwd`/lib/libgcc_s.1.dylib bin/exec/i386/R
install_name_tool -change /usr/local/lib/libgcc_s.1.dylib \
   `pwd`/lib/libgcc_s.1.dylib bin/exec/ppc/R

I have fixed the build script, so tomorrow's nightlies should be ok.

Now the actual bug that probably triggered this is Apple's installer  
(so far Xcode 2.5 and 3 are known) that screws up /usr/local/lib - it  
is an infinite symlink loop. If that is true, use the following to fix  
it:

sudo rm /usr/local/lib
sudo mv '/usr/local/lib 1' /usr/local/lib

Either of the above should fix the symptoms.

Cheers,
Simon


On Jan 11, 2008, at 3:24 AM, Robin Hankin wrote:

> Hi
>
> R-2.6.1, MacOSX 10.5.1
>
>
> I've been running R fine since upgrading to 10.5.1, but now have a
> problem.
>
> Clicking the "R" icon seems to work fine but typing "R" at
> the command prompt gives me this:
>
>
>
> 245-10:~% R
> dyld: Library not loaded: /usr/local/lib/libgcc_s.1.dylib
>   Referenced from: /Library/Frameworks/R.framework/Resources/bin/exec/
> ppc/R
>   Reason: no suitable image found.  Did find:
> 	/usr/local/lib/libgcc_s.1.dylib: stat() failed with errno=62
> Trace/BPT trap
> 245-10:~%
>
>
>
> I'm sure it worked yesterday, and I rebooted my machine just now and
> got the same error.  I don't think I changed anything (certainly  
> nothing
> deliberate, and I have not been tinkering with the system, as far as I
> know).
>
>
> Anyone got an idea?
>
>
>
>
>
>
> --
> Robin Hankin
> Uncertainty Analyst and Neutral Theorist,
> National Oceanography Centre, Southampton
> European Way, Southampton SO14 3ZH, UK
>  tel  023-8059-7743
>
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>