Generally, you cannot link directly to a shared library in another package. You can access *routines* in another package using the LinkingTo: API (see R-ext 5.4.3), but not a library. You can also use static libraries on another packages (see R-ext 5.8) - but never a shared library.
Cheers, Simon > On Jan 18, 2018, at 7:51 PM, Wei-Chen Chen <wccs...@gmail.com> wrote: > > Dear List Members, > > I knew linking with other shared library in mac may be tricky, but I > thought it may save some space and worth a try. > > The messages below are from a CRAN check recently from " > https://www.r-project.org/nosvn/R.check/r-release-osx-x86_64/JuniperKernel- > 00install.txt". It obtained the correct paths (to libzmq.5.dylib) from a > package pbdZMQ, then set them for compiling and linking to the target > package JuniperKernel. However, the results at "install_name_tool" showed > that the path to the shared library is not what it said at linking time. > Therefore, later on at the run time the dyn.load() will not be able to find > the shared library. > > The questions are: > 1) How did this happen? > 2) What path and what clang flags I should use in this case? > 3) Is there an easy way to resolve this issue? (e.g. Would it work by > adding pbdZMQ to the "Depends:"?) > > Sincerely, > Wei-Chen Chen > > > * installing *source* package ‘JuniperKernel’ ... > ** package ‘JuniperKernel’ successfully unpacked and MD5 sums checked > > ************** Results of JuniperKernel package configure ************** > >>> RSCRIPT = /Library/Frameworks/R.framework/Resources/bin/Rscript >>> PBD_ZMQ = >>> /Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/pbdZMQ >>> ZMQ_CPPFLAGS = >>> -I"/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/pbdZMQ/zmq/include" >>> ZMQ_LDFLAGS = >>> -L"/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/pbdZMQ/libs" >>> -lzmq.5 > > ************************************************************************ > > ** libs > clang++ -std=gnu++11 > -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG > -I../inst/include/ -I. > -I"/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/pbdZMQ/zmq/include" > -I"/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/Rcpp/include" > -I"/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/gdtools/include" > -I/usr/local/include -fPIC -Wall -g -O2 -c RcppExports.cpp -o > RcppExports.o > clang++ -std=gnu++11 > -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG > -I../inst/include/ -I. > -I"/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/pbdZMQ/zmq/include" > -I"/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/Rcpp/include" > -I"/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/gdtools/include" > -I/usr/local/include -fPIC -Wall -g -O2 -c juniper.cpp -o juniper.o > clang++ -std=gnu++11 -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 > JuniperKernel.so RcppExports.o juniper.o > -L/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/Rlib/3.4/pbdZMQ/libs > -lzmq.5 -F/Library/Frameworks/R.framework/.. -framework R > -Wl,-framework -Wl,CoreFoundation > installing via 'install.libs.R' to > /Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/results/3.4/JuniperKernel.Rcheck/JuniperKernel > > Before install_name_tool (in install.libs.R): > [1] > "/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/results/3.4/JuniperKernel.Rcheck/JuniperKernel/libs/JuniperKernel.so:" > [2] "\tJuniperKernel.so (compatibility version 0.0.0, current version > 0.0.0)" > [3] > "\t/Library/Frameworks/R.framework/Versions/3.4/Resources/library/pbdZMQ/libs/libzmq.5.dylib > (compatibility version 7.0.0, current version 7.2.0)" > [4] "\t/Library/Frameworks/R.framework/Versions/3.4/Resources/lib/libR.dylib > (compatibility version 3.4.0, current version 3.4.3)" > [5] > "\t/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation > (compatibility version 150.0.0, current version 1259.11.0)" > [6] "\t/usr/local/clang4/lib/libc++.1.dylib (compatibility version > 1.0.0, current version 1.0.0)" > [7] "\t/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, > current version 1226.10.1)" > ** R > ** inst > ** preparing package for lazy loading > ** help > *** installing help indices > ** building package indices > ** testing if installed package can be loaded > Error: package or namespace load failed for ‘JuniperKernel’ in > dyn.load(file, DLLpath = DLLpath, ...): > unable to load shared object > '/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/results/3.4/JuniperKernel.Rcheck/JuniperKernel/libs/JuniperKernel.so': > > dlopen(/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/results/3.4/JuniperKernel.Rcheck/JuniperKernel/libs/JuniperKernel.so, > 6): Library not loaded: > /Library/Frameworks/R.framework/Versions/3.4/Resources/library/pbdZMQ/libs/libzmq.5.dylib > Referenced from: > /Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/results/3.4/JuniperKernel.Rcheck/JuniperKernel/libs/JuniperKernel.so > Reason: image not found > Error: loading failed > Execution halted > ERROR: loading failed > * removing > ‘/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/results/3.4/JuniperKernel.Rcheck/JuniperKernel’ > > [[alternative HTML version deleted]] > > _______________________________________________ > R-SIG-Mac mailing list > R-SIG-Mac@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-mac _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
