Hi folks, apologies, if I am double posting - I had problems with my mail.
I need some help here from experienced Rcpp developers. I am coding since some time on an R-package using Rcpp and nlopt. Lately I found out that I could probably use 'nloptr' to include nlopt in my C++ code, which would give a great advantage to users of my package (instead of installing nlopt on their systems by hand). I followed the example on https://github.com/jchiquet/RcppArmadilloNLoptExample (the nloptC one) and modified my code accordingly. When I compile my package I get the error " Error: package or namespace load failed for ‘finmix’ in library.dynam(lib, package, package.lib): shared object ‘nloptC.so’ not found" In my DESCRIPTION I use in the 'Imports' and the 'LinkingTo' field 'nloptr'. In my NAMESPACE I load 'nloptC' via 'useDynLib(nloptC)'. What I saw in the example's 'RcppExports.cpp' file is RcppExport void R_init_nloptC(DllInfo *dll) { R_registerRoutines(dll, NULL, CallEntries, NULL, NULL); R_useDynamicSymbols(dll, FALSE); } This part is missing in my 'RcppExports.cpp' (I recompiled the file via 'Rcpp::compileAttributes' also tried to compile twice). I cannot explain what is missing on my side. If someone of you has an idea what might be the error on my side, please let me know. I am thankful for any advice. If you want to compile my package you can find it on my GitHub at https://github.com/simonsays1980/finmix/tree/nloptapi. I am using R 4.0.5 on a Fedora 34 System, Rcpp 1.0.6 and nloptr 1.2.2.2. Thanks for any time and efforts you spent on my problem. Simon
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