More precisely the built-in Lapack module. AFAICT this is because the f90 files are not compiled with -fpic. My output:
make[4]: Entering directory '/tmp/R-devel/src/modules/lapack' gfortran -fpic -g -O2 -msse2 -mfpmath=sse -c dlamch.f -o dlamch.o gfortran -fpic -g -O2 -c dlapack.f -o dlapack.o gfortran -fpic -g -O2 -c cmplx.f -o cmplx.o gfortran -c la_constants.f90 -o la_constants.o gfortran -c dlartg.f90 -o dlartg.o gfortran -c la_xisnan.f90 -o la_xisnan.o gfortran -c dlassq.f90 -o dlassq.o gfortran -c zlartg.f90 -o zlartg.o gfortran -c zlassq.f90 -o zlassq.o gcc -shared -fopenmp -L/usr/local/lib64 -o libRlapack.so dlamch.o dlapack.o cmplx.o dlartg.o dlassq.o la_constants.o la_xisnan.o zlartg.o zlassq.o -L"../../../lib" -lRblas -lgfortran -lm -lquadmath /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: zlassq.o: warning: relocation against `__la_xisnan_MOD_disnan' in read-only section `.text' /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: dlassq.o: relocation R_X86_64_PC32 against symbol `__la_xisnan_MOD_disnan' can not be used when making a shared object; recompile with -fPIC /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value collect2: error: ld returned 1 exit status If I update src/modules/lapack/Makefile.in to add $(FPICFLAGS) to the .f90 compilation, then all is good. I assume you would also want to add -g and -O2 here, so probably some other variable is better than $(FPICFLAGS). FYI, Gabor ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel