A quick update The correct command to run the sundials example is
gcc -Wall cvRoberts_dns.c -o cvRoberts_dns.exe -I/usr/local/include -L/usr/local/lib/ -lsundials_cvode -lsundials_nvecserial -lm OR gcc -Wall cvRoberts_dns.c -o cvRoberts_dns.exe /usr/local/lib/libsundials_cvode.a /usr/local/lib/libsundials_nvecserial.a also, the command PKG_LIBS= $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS) /usr/local/lib/libsundials_cvode.a /usr/local/lib/libsundials_nvecserial.a now works! So, linking to a static library works, but linking to the .so or .dylib does not in this case. Thanks SN On Wed, Jul 6, 2016 at 12:22 PM, Satyaprakash Nayak <sn...@cornell.edu> wrote: > Hi > > I am trying to develop a package which links against a C library which is > installed on my system (Mac OSX) in the /usr/local/lib directory. > > The C library against which I am linking is called 'Sundials > <http://computation.llnl.gov/projects/sundials-suite-nonlinear-differential-algebraic-equation-solvers>' > (an efficient solver for large scale ordinary differential/algebraic > equations) and the specific error I get when I perform 'clean and rebuild` > in RStudio, I get the following error > > Library not loaded: libsundials_nvecserial.0.dylib > > > The Makevars is as follows > > PKG_CPPFLAGS= -I../inst/include/ -I src/sundials >> PKG_LIBS= $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS) -L/usr/local/lib >> -lsundials_nvecserial -lsundials_cvode -lm > > > Initially, I was thinking of building the library in the package itself so > that the users don't have to install `sundials` to use the package, but I > have abandoned that approach (for now) and I am now trying to link to the > libraries installed on the system. Currently, the package does not do > anything useful, I am just trying to allocate values to the N_VNew_Serial() > (a vector type defined by the sundials library), see - > https://github.com/sn248/Rcppsbmod/blob/pr/1/src/sundials_test.cpp > > I have confirmed that /usr/local/lib does contain > libsundials_nvecserial.0.dylib > > The source code for the entire package can be found at - > https://github.com/sn248/Rcppsbmod/tree/pr/1 > > In the interest of full disclosure, I have asked a similar question before > on StackOverflow also - > http://stackoverflow.com/questions/37819967/compiling-c-in-rcpp-with-external-c-library > > and received comments that this is a linking error, not compilation. > > To confirm that I have sundials installed and working on my laptop, I > tried to compile and link an example from the library using the command > > gcc -Wall cvRoberts_dns.c -o cvRoberts_dns.exe -I/usr/local/include > -L/usr/local/lib/ -lsundials_cvode -lsundials_nvecserial -lm > > and was able to run it successfully. > > Any help in linking successfully to this library in my package would be > highly appreciated. > Thanks! > SN > > [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
