Thanks Stuart! Will investigate as you suggested.
Best, STEFAN Am 25.10.19 um 15:21 schrieb Stuart Henderson: > On 2019-10-25, Stefan Wollny <stefan.wol...@web.de> wrote: >> Ping... >> >> Anyone? >> >> >> Am 22.10.19 um 17:21 schrieb Stefan Wollny: >>> Hi there! >>> >>> Any Ocaml experts around who managed to install 'owl'? Installation of >>> owl fails as 'eigen' and 'open-blas' fail to build. >>> >>> I am running amd64-current. >>> >>> Any suggestions what I might miss??? > > No idea about owl/Ocaml, but you will need to use a C++11 compiler to build > eigen: > >>> # g++ -O3 -std=c++11 -I. -I./unsupported/ -c -fPIC -ansi >>> -Wno-extern-c-compat -Wno-c++11-long-long >>> -Wno-invalid-partial-specialization -Ofast -march=native -mfpmath=sse >>> -funroll-loops -ffast-math eigen_tensor.cpp -o eigen_tensor.o >>> # cc1plus: error: invalid option argument '-Ofast' >>> # cc1plus: error: unrecognized command line option "-std=c++11" >>> # cc1plus: error: unrecognized command line option >>> "-Wno-invalid-partial-specialization" >>> # *** Error 1 in >>> /home/sw/.opam/ocaml-base-compiler/.opam-switch/build/eigen.0.1.4/_build/default/eigen_cpp/lib >>> (Makefile:8 'all') > > It should use c++ (which is clang on amd64), not g++ (old gcc). >
