* installing *source* package ‘GeneralizedUmatrixGPU’ ...
** this is package ‘GeneralizedUmatrixGPU’ version ‘0.1.11’
** using staged installation
configure: building makevars
System detected: Linux
End of configure
** libs
using C++ compiler: ‘Debian clang version 21.1.8 (1+b1)’
clang++-21 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/RcppArmadillo/include' -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/RcppParallel/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c RcppExports.cpp -o RcppExports.o
clang++-21 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/RcppArmadillo/include' -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/RcppParallel/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c trainSESOM.cpp -o trainSESOM.o
clang++-21 -std=gnu++17 -shared -L/home/hornik/tmp/R/lib -Wl,-O1 -o GeneralizedUmatrixGPU.so RcppExports.o trainSESOM.o -llapack -L/home/hornik/tmp/R/lib -lRblas -L/usr/lib/llvm-21/lib/clang/21/lib/linux -L/usr/lib/llvm-21/lib -lflang_rt.runtime -lmPKG_LIBS+=-lOpenCL -L/home/hornik/tmp/R/lib -lR
/usr/bin/ld: cannot find -lmPKG_LIBS+=-lOpenCL: No such file or directory
clang++-21: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [/home/hornik/tmp/R/share/make/shlib.mk:10: GeneralizedUmatrixGPU.so] Error 1
ERROR: compilation failed for package ‘GeneralizedUmatrixGPU’
* removing ‘/srv/hornik/tmp/CRAN_pretest/GeneralizedUmatrixGPU.Rcheck/GeneralizedUmatrixGPU’