[R-SIG-Mac] Writing R package that calls Fortran on Mac os X El Capitan Error

[Kodalore Vijayan, Vineetha W]

 Yes. My package name is "Epidemic" and namespace contains the following:

useDynLib(randomepi)
useDynLib(Nepidemic, .registration = TRUE)

exportPattern("^[[:alpha:]]+")
export(randomepi)
import(graphics,grDevices,stats, utils)


I could see Nepidemic.so and randomepi.o files in the src folder.

-V




On Thu, Jun 16, 2016 at 2:28 PM, Eduardo M. A. M.Mendes <
emammendes at gmail.com> wrote:

> Dear Vennetha
>
> I am running R on a mac too.
>
> Please see if my comments below helps.
>
>
> On Jun 16, 2016, at 5:00 PM, Kodalore Vijayan, Vineetha W <vwkv13 at mun.ca>
> wrote:
>
> I'm trying to write an R package that calls a Fortran subroutine on my  Mac
> os x El Capitan with Xcode 7 and gfortran 6.1, R 3.3.0.
>
> I couldn't  build the library with my current namespace commands.
> I get the following error:
>
>
> * installing *source* package ‘Nepidemic’ ...
> ** libs
> gfortran  -fPIC -Wall -g -O2  -c  randomepi.f95 -o randomepi.o
> gfortran -dynamiclib -Wl,-headerpad_max_install_names -undefined
> dynamic_lookup -single_module -multiply_defined suppress
> -L/Library/Frameworks/R.framework/Resources/lib -L/usr/local/lib -o
> Nepidemic.so randomepi.o -F/Library/Frameworks/R.framework/.. -framework R
> -Wl,-framework -Wl,CoreFoundation
>
>
> The name of the library created by r cmd shlib is Nepidemic.so.
>
> installing to
> /Users/Vineetha/myrlibrary/myrpackages/Nepidemic.Rcheck/Nepidemic/libs
> ** R
> ** preparing package for lazy loading
> ** help
> *** installing help indices
> ** building package indices
> ** testing if installed package can be loaded
> Error in library.dynam(lib, package, package.lib) :
>  shared object ‘randomepi.so’ not found
>
>
> Note that the r cmd check is looking for randomepi.so so it means that it
> is calling the wrong library (it should be Nepidemic.so).  Are you sure
> that the NAMESPACE contains the following lines?
>
> useDynLib(NEpidemic,.registration = TRUE)
> export(randomepi)
>
> in all the examples I have those lines would suffice.
>
> Error: loading failed
> Execution halted
> ERROR: loading failed
> * removing
> ‘/Users/Vineetha/myrlibrary/myrpackages/Nepidemic.Rcheck/Nepidemic’
>
>
> My package name is "NEpidemic" and source code file in src folder is
> "randomepi.f95"
>
> Any help would be much appreciated. I'm vey new to both R
> and Fortran coding, especially in package building.
>
> Thanks in advance!
> Vineetha
>
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