On Tue, 4 Jun 2019, Mark Klik wrote: > Hello, > > I'm developing a package (lazyvec) that makes full use of the ALTREP > framework (R >= 3.6.0). > One application of the package is to wrap existing ALTREP vectors in a new > ALTREP vector and pass all calls from R to the contained object. The > purpose of this is to provide a diagnostic framework for working with > ALTREP vectors and show information about internal calls. > > The package builds on Windows and OSX but fails to build on Linux as can be > seen from the link to the Travis build: > https://travis-ci.org/fstpackage/lazyvec/jobs/539442806 > > The reason of build failure is that many ALTREP methods generate 'undefined > symbol' errors upon building the package (on Linux). I've checked the R > source code and the undefined symbols seems to be related to the > 'attribute_hidden' before the function definition. For example, the method > 'ALTVEC_EXTRACT_SUBSET' is defined as: > > SEXP attribute_hidden ALTVEC_EXTRACT_SUBSET(SEXP x, SEXP indx, SEXP call) > > My question is why these differences between Windows / OSX and Linux exist > and if they are intentional?
It is intentional that this not be part of the public API. This is true of almost all functions with an ALTREP prefix. You need a different approach that avoids using these directly. Best, luke > Do I need special build parameters to make sure my package builds correctly > on Linux? > > thanks for all the hard work! > > best, > Mark > > PS: some additional info: > > package github repository: https://github.com/fstpackage/lazyvec > AppVeyor package build logs: > https://ci.appveyor.com/project/fstpackage/lazyvec > Travis package build logs: https://travis-ci.org/fstpackage/lazyvec/builds > > [[alternative HTML version deleted]] > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > -- Luke Tierney Ralph E. Wareham Professor of Mathematical Sciences University of Iowa Phone: 319-335-3386 Department of Statistics and Fax: 319-335-3017 Actuarial Science 241 Schaeffer Hall email: luke-tier...@uiowa.edu Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
