[R-SIG-Mac] The libpng12.0.dylib hoo-hah.

Ben Madin lists at remoteinformation.com.au
Fri May 7 04:53:17 CEST 2010


I have no expertise in X11, and can use it (I don't normally, it seems much slower than quartz) the most technical thing I have done is install R installation using the installer from r.research.att.com but if it helps you in a moment of desparation!

On 07/05/2010, at 10:28 , Rolf Turner wrote:

> My reading of the discourse appears to me to indicate that I should
> be able to remedy the problem by running System Update.  I found the
> menu item for that and clicked on it.  I got a pop-up window listing
> the software for which updates are available.  None seems to have
> anything to do with X11 or with libpng12.0.dylib.  I have attached
> a screen shot of this pop-up window in pdf format.

I am running 10.6.3 - Apple updates routinely seem to include all sorts of very small tweaks and updates here and there. I don't really understand why my sessionInfo() output is the same as yours - x86_64-apple-darwin9.8.0.

> sessionInfo()
R version 2.10.1 Patched (2010-02-01 r51089) 

[1] en_AU.UTF-8/en_AU.UTF-8/C/C/en_AU.UTF-8/en_AU.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] maptools_0.7-34   lattice_0.18-3    foreign_0.8-40    rgdal_0.6-26      sp_0.9-62         sna_2.1-0        
[7] network_1.4-1     RPostgreSQL_0.1-6 DBI_0.2-5        

> One item that I guess might have some impact is for the whole operating
> system!  The item says that Mac OS X 10.6.3 is available.  (I'm currently
> running 10.6.2.)  I hesitate to try this, since I'm not sure what other
> difficulties would result from so doing.  And I'm not sure how long it
> would take.  Hours?  And doesn't one have to ***pay*** for OS updates?

at 438 MB I guess you could argue that you have to pay, especially if you are not on broadband. But you don't have to pay anything to Apple for the minor digit upgrades ( ie 10.6.2 -> 10.6.3)

> So can anyone suggest how I might get the appropriate up-to-date version
> of libpng12.0.dylib in place on my system?

I have it - no idea where it came from , but I'd try the upgrade as you have identified. In fact I seem to have all the following:


I hope this is some help.



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