R help - Oct 2014 - Build a package on one Mac but unable to load this on another Mac

Hi, I build a package on one Mac. I can install the package on another Mac
but it cannot be loaded. The following is the error message.

Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared object
'/Library/Frameworks/R.framework/Versions/3.1/Resources/library/mypkgfe/libs/mypkgfe.so':
dlopen(/Library/Frameworks/R.framework/Versions/3.1/Resources/library/mypkgfe/libs/mypkgfe.so,
6): Library not loaded: /usr/local/lib/libgfortran.3.dylib
Referenced from:
/Library/Frameworks/R.framework/Versions/3.1/Resources/library/mypkgfe/libs/mypkgfe.so
Reason: image not found
Error: package or namespace load failed for ?mypkgfe?

If I install the gfortran on the user's Mac, the package can be installed
and loaded successfully. But I don't think this is a good option to solve
this problem as it requires too much on the user's end. Is there anyway to
build the package so that it can be successfully loaded even the Mac
doesn't have gfortran preinstalled?

It seems the Mavericks OS X can load the package but not the Snow Leopard
OS X. I am wondering if this has anything to do with the fact that R for
Snow Leopard doesn't include GNU Fortran.

Thanks!

	[[alternative HTML version deleted]]

On Oct 18, 2014, at 8:42 AM, althu07 wrote:
> Hi, I build a package on one Mac. I can install the package on another Mac
> but it cannot be loaded. The following is the error message.
> 
> Error in dyn.load(file, DLLpath = DLLpath, ...) :
> unable to load shared object
>
'/Library/Frameworks/R.framework/Versions/3.1/Resources/library/mypkgfe/libs/mypkgfe.so':
>
dlopen(/Library/Frameworks/R.framework/Versions/3.1/Resources/library/mypkgfe/libs/mypkgfe.so,
> 6): Library not loaded: /usr/local/lib/libgfortran.3.dylib
> Referenced from:
>
/Library/Frameworks/R.framework/Versions/3.1/Resources/library/mypkgfe/libs/mypkgfe.so
> Reason: image not found
> Error: package or namespace load failed for ?mypkgfe?
> 
> If I install the gfortran on the user's Mac, the package can be
installed
> and loaded successfully. But I don't think this is a good option to
solve
> this problem as it requires too much on the user's end. Is there anyway
to
> build the package so that it can be successfully loaded even the Mac
> doesn't have gfortran preinstalled?
> 
> It seems the Mavericks OS X can load the package but not the Snow Leopard
> OS X. I am wondering if this has anything to do with the fact that R for
> Snow Leopard doesn't include GNU Fortran.
As far as Macs are concerned there are two forks in the R versions: one running
on Snow Leopard, Lion and Mountain Lion and the other running on Mavericks and
Yosemite. If you submit the package to CRAN it will build two different versions
using the correct toolchains (and the correct XQuartz and Java packages). If 
you are doing this on your own, you will need to have two different versions
each with the correct toolchains. This is something that is described in the
admin documents. And future questions should go to the correct mailing list:
R-SIG-Mac: https://stat.ethz.ch/mailman/listinfo/r-sig-mac

> 
> Thanks!
> 
> 	[[alternative HTML version deleted]]
And like rhelp, R-SIG-Mac is a plain text mailing list.
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
David Winsemius
Alameda, CA, USA

You could include just that library in your distribution, and change the dynamic
link path using install_name_tool. I assume how to do so in detail is beyond the
intended scope of this mailing list.

> On Oct 18, 2014, at 11:42 AM, althu07 <althu07 at gmail.com> wrote:
> 
> Hi, I build a package on one Mac. I can install the package on another Mac
> but it cannot be loaded. The following is the error message.
> 
> Error in dyn.load(file, DLLpath = DLLpath, ...) :
> unable to load shared object
>
'/Library/Frameworks/R.framework/Versions/3.1/Resources/library/mypkgfe/libs/mypkgfe.so':
>
dlopen(/Library/Frameworks/R.framework/Versions/3.1/Resources/library/mypkgfe/libs/mypkgfe.so,
> 6): Library not loaded: /usr/local/lib/libgfortran.3.dylib
> Referenced from:
>
/Library/Frameworks/R.framework/Versions/3.1/Resources/library/mypkgfe/libs/mypkgfe.so
> Reason: image not found
> Error: package or namespace load failed for ?mypkgfe?
> 
> If I install the gfortran on the user's Mac, the package can be
installed
> and loaded successfully. But I don't think this is a good option to
solve
> this problem as it requires too much on the user's end. Is there anyway
to
> build the package so that it can be successfully loaded even the Mac
> doesn't have gfortran preinstalled?
> 
> It seems the Mavericks OS X can load the package but not the Snow Leopard
> OS X. I am wondering if this has anything to do with the fact that R for
> Snow Leopard doesn't include GNU Fortran.
> 
> Thanks!
> 
>    [[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.